Quick Start Guides
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LK-1
Introduction
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Auri™ powered by Ampetronic and Listen Technologies, is the first Auracast™ broadcast audio-based solution for assistive listening. We have developed Auri to let venues and end users adopt Auracast™ broadcast audio technology now with both dedicated Receivers and direct compatibility with newly emerging devices such as hearing aids, earbuds, headphones and mobile phones.
Auri is a comprehensive Assistive Listening System (ALS) that sends high quality, low-latency, multi-channel broadcast audio to an unlimited number of Auracast compatible Receivers and devices.
The system includes Transmitters designed for professional installation, with balanced mic/line inputs and optional integrated Dante. Transmitters broadcast audio to a large area, from two radios with flexible routing options that cover a wide range of project needs. Multiple Transmitters can be used to increase coverage or channel count.
Receivers and Docking Stations meet accessibility needs for all users and allow implementation now while end user devices adopt the latest Bluetooth standards.
The Auri Manager software application provides a user-friendly interface for discovery, management and configuration of all devices over the network.
Auri TX2N / Auri TX2N-D Transmitter
The Auri TX2N Auracast Transmitter is the heart of an Auri system, providing long range, low latency Auracast broadcast audio.
A factory option for integrated Dante input is available.
Auri RX1 Receiver
The Auri Audio Receiver is a state-of-the-art assistive listening Receiver, allowing venues to provide hearing assistance to guests while meeting compliance with disability and accessibility requirements.
Auri-D4 / Auri-D16 Docking Station
The Docking Stations allow for easy charging and management of Auri Receivers and are available in 4 or 16 unit options, with accessories such as the Docking Station case and intelligent cable management unit for the AURI-D16.
Auri Manager Software Application
The Auri Manager software for Windows® makes setting up the Auri system simple. Easily configure a single device or manage a large system deployed across multiple locations. Auri™ Manager supports automatic discovery, full control and software updates for network-attached Transmitters, charging docks and docked Receivers.
Accessories
A range of compatible accessories are available, including ear speakers and headphones, neck loops and signage.
Read the following information before you use your Auri System.
This system is a Bluetooth Low Energy Audio Broadcast system operating in the 2.4 GHz frequency band from 2.402 GHz to 2.480 GHz.
The system is designed for use in applications such as assistive listening, audio description and language interpretation/translation. Any application not named in the instruction manual is considered improper use. No liability is accepted for damage arising from improper use or misuse of this product and any related accessories. Before putting the products into operation, please observe the respective country-specific regulations.
Product labeling information such as serial number, manufacturer, and additional regulatory information is found on the product label on the devices.
Safety Instructions for Lithium Polymer Battery
This product uses a Lithium Polymer battery 3.7V, 750 mAh. Use only the battery that came with your device or a replacement battery from the manufacturer designed for use in this device.
Caution – risk of fire or explosion if the battery is replaced by an incorrect type.
Do not dismantle, open or shred secondary cells or battery.
Do not expose cells or battery to heat or fire. Avoid storage in direct sunlight.
Do not use any charger other than that specifically provided for use with the equipment.
Defective or exhausted battery should never be disposed of as municipal waste. Return old batteries to the battery supplier, a licensed battery dealer or a designated collection facility. Do not incinerate batteries.
Do not replace the batteries in potentially explosive environments, such as rooms where flammable liquids or gasses are present.
Lithium batteries have limited lifetimes. Any Lithium battery that shows any signs of damage, including swelling should be properly discarded immediately.
The symbol of the crossed-out wheeled bin on the product, the batteries and/or the packaging indicates that these products must be disposed of separately at the end of their operational lifetime in accordance with the national legislation. For packaging disposal, please observe the legal regulations on waste segregation applicable in your country.
The separate collection of waste electrical and electronic equipment, batteries and packaging is used to promote reuse and recycling and to prevent negative effects caused by e.g., potentially hazardous substances contained in these products. Herewith you make an important contribution to the protection of the environment and public health.
The TX2N Transmitter is the heart of an Auri system, providing long range, low latency Auracast broadcast audio.
A pair of balanced switchable mic/line level inputs or an optional integrated two channel Dante interface allow a single stereo or two mono audio sources to be routed in a variety of ways to one or two broadcasts.
For a full description of features and configurations see the Auri Manager section of the handbook.
Unpack all contents from the box:
1x AURI-TX2N or AURI-TX2N-D Transmitter
1x Universal mounting bracket
3x Euroblock connectors
1x 1.8 m (6 ft) Cat6 cable
1x Quick Start Guide and Safety Data Sheet
A Phillips head screwdriver is required for the captive retaining screw on the mounting bracket.
Fixtures and fittings such as electrical back boxes, screws and wall plugs will be needed, dependant on the install location.
A power supply is not included, if PoE is not available then a USB-C supply capable of delivering at least 500mA will be required.
Remove the mounting bracket from the Transmitter, to do this you may need to loosen the retaining screw, then firmly slide the bracket away from the Transmitter.
Before installation it is recommended to do some basic setup of the Transmitter to ensure it is operating as required.
By default the Transmitter will be set with both inputs at line level, with nominal gain and AGC enabled. The two inputs will be summed into a single 24 kHz mono broadcast, named “Auri [serial]-1”.
Apply power (USB-C or PoE), plug a line level audio source in to one of the inputs and confirm that the broadcast can be picked up by an Auri Receiver or Auracast enabled device.
Determine a suitable installation location for the Auri Transmitter. This should be chosen to ensure good coverage of the intended listening area for a range of different receiving devices.
Transmitters should be installed at a height of 6 to 10 feet (1.8 to 3 metres) on a wall or ceiling and the Auri logo must always be facing into the room. Where users may face in multiple directions the Transmitter should be placed central to the coverage area. If all users will be facing in the same direction, such as in an auditorium, it is recommended to locate Transmitters in front of the users so that the Receivers have good line of sight to the Transmitter.
When multiple Transmitters are used for larger coverage areas they should be spaced with an overlap of approximately 20% on the coverage for the least sensitive receiving device that is to be used in the space.
The Transmitter range will be affected by the sensitivity of the receiving device, different building environments and the amount of other devices operating in the same frequency band. In larger or more complex spaces it is advisable to carry out a site test to confirm best placement and number of transmitters needed for full coverage.
Range will be decreased when Receivers are covered or obstructed, for instance a single earbud or hearing aid will have much greater range with line of sight to the Transmitter, for this reason in larger spaces at least two Transmitters will provide much greater range and consistency of coverage.
Once the install location has been determined, make sure there is a cable route established and run the required cables. As a minimum power (USB-C or PoE) and at least one source of audio (balanced mic/line or Dante) are required. A permanent network connection is recommended for configuration and ongoing management.
The mounting bracket supports a range of standard UK, EU and US electrical boxes, VESA 75 or direct mounting to a wall or ceiling. A minimum of two screws should be used to secure the bracket.
Rear or top cable entry is possible, depending on your install location.
Note that the bracket must be installed such that the Transmitter is facing into the room as coverage to the rear of the Transmitter is much lower.
With the bracket installed and cables terminated, hold the Transmitter close to the bracket and plug in the cables, a set of cable tie posts are provided to secure cabling and add strain relief.
Align the Transmitter below the bracket and push it upwards until you hear a click. The cable tray cover should be located in small slots at either corner.
Tighten the retaining screw at the top of the bracket.
With the final audio sources being connected, ensure there are signals representative of the intended use of the Transmitter, such as someone speaking into a microphone, or AV content being played.
As a minimum it is recommended to review the audio input mode and levels and to rename the broadcast, the Auri Manager software is required for configuration of the Transmitter. See the Auri Manager section of the handbook, and “Minimum Transmitter Setup” for more information.
The Transmitter output power should be adjusted to suit the install environment, in smaller spaces the Transmit Power should be reduced to avoid excessive signal being broadcast into adjacent areas. Where there are lots of Auracast systems operating in close proximity careful management of output power will result in better performance and a cleaner experience for the end users. Coverage should be validated in normal use of the space to ensure the Transmit Power is set appropriately for when the space is fully occupied.
State |
Meaning |
Solid Green |
OK |
Flashing between Green and Red |
Firmware update in progress
|
Green, Blue, Red then Flashing Yellow |
Boot sequence |
Solid Yellow |
|
Solid Red |
System error – check status in Auri Manager, power cycle Transmitter or contact support |
Flashing White |
Identify |
Red, Off, Green, Off, Blue, Off |
Critical error, contact support |
Two recessed buttons are located between the USB-C socket and mic/line input 1.
Inputs |
|
Input selection |
2x audio inputs individually selectable between mic, line or optional Dante modes |
Mic/Line Inputs |
|
Connection |
2x 3-way 3.5mm pitch Euroblock |
Input impedance |
15kΩ |
THD+N |
0.03% at 0dBu (line mode) 0.02% at –25dBu (mic mode) |
Common mode rejection |
56dB |
Microphone Mode |
|
Max level before clipping |
-25 dBu |
Sensitivity |
-65 dBu |
Switchable phantom power |
+24 V |
Line Mode |
|
Max level before clipping |
+16 dBu |
Sensitivity |
-25 dBu |
Dante (optional) |
|
Connection |
Dedicated RJ45 socket |
Port speed |
100 Mbit |
Channels |
2 |
Sample rate |
48 kHz |
Outputs |
|
Line Output |
|
Connection |
1x 3-way 2.5mm pitch Euroblock |
Nominal output level |
+1 dBu |
Output impedance |
150 Ω |
Radio |
|
Bluetooth version |
5.3 |
Operating Frequency |
2400 to 2482 MHz |
Operating mode |
Auracast™ Compliant, Broadcast Only |
Supported codec |
LC3 |
Maximum output power |
North America: +20 dBm Rest of World: +10 dBm |
Output power control |
Attenuation from regional max to -10 dBm |
Encryption |
AES128-CCM encryption, with 4-16 character password |
Supported formats |
Mono or Stereo |
Network Audio |
|
Input routing |
Additional input source for each audio stream, must be selected from another TX2N on same network |
Connection |
Shared RJ45 with control and PoE |
Channels |
2x stereo inputs 2x stereo outputs |
Format |
Multicast RTP |
Bit depth |
16 bit |
Sample rate |
16 kHz, 24 kHz or 48 kHz, matched to broadcast |
Bandwidth |
0.5 Mbit/s (16 kHz) to 1.5M bit/s (48 kHz) per stereo stream |
Latency |
5 ms nominal |
Audio Processing |
|
Input routing |
Disabled, Input 1 Only, Input 2 Only, Input 1 & 2 Stereo Pair, Input 1 & 2 Mono Sum |
AGC |
Switchable, 20 dB gain control range |
Low cut |
Switchable, 24 dB/oct, frequency based on sample rate 16 kHz sample rate: 75 Hz 24 kHz sample rate: 110 Hz 48 kHz sample rate: 220 Hz |
Sample rates |
16 kHz, 24 kHz (Auracast Standard – required) 48 kHz (Auracast High) |
Frequency response +/- 3 dB (internal, line in to line out) |
16 kHz sample rate: 50 Hz – 7.5 kHz 24 kHz sample rate: 50 Hz – 11.0 kHz 48 kHz sample rate: 50 Hz – 22.5 kHz |
Latency (internal, line in to line out) |
13ms |
Latency (complete system, end to end) |
Auri RX1 – 29 ms to 45 ms (dependant on sample rate and mono/stereo) Other receivers will vary |
Network |
|
Port speed |
100 Mbit |
IP address |
DHCP, static or link-local |
Protocols |
mDNS, UDP (unicast), RTP (multicast), RTCP (multicast) |
Security |
UDP communication AES256-GCM |
|
|
Controls and Indication |
|
Buttons |
Recessed restart and factory reset buttons |
Setup/Programming |
Via Auri Manager Software |
Status LED |
RGB multi-function LED, see handbook for states |
Power |
|
PoE |
IEEE 802.3af |
USB-C |
5V PD Compliant |
Power consumption (nominal) |
USB-C: 5 V, 370 mA (1.85 W) PoE: 48 V, 53 mA (2.54 W) |
Physical |
|
Dimensions |
183 x 173 x 48 mm (7.20 x 6.81 x 1.89 in.) |
Weight |
TX2N – 0.45 kg (0.99 lbs.) TX2N-D – 0.47 kg (1.04 lbs.) |
Shipping Weight |
TX2N – 0.89 kg (1.96 lbs.) TX2N-D – 0.91 kg (2.01 lbs.) |
Enclosure Material |
PC-ABS |
Colour |
White |
Mounting |
Removable wall/ceiling bracket Multiple holes to support mounting on standard UK, EU and US electrical back boxes and VESA 75 |
Environmental |
|
Temperature – Storage |
-40 °C (-40 °F) to 70 °C (+158 °F) |
Temperature – Operation |
-10 °C (14 °F) to 40 °C (+104 °F) |
Relative Humidity |
0 to 95% relative humidity, non-condensing |
IP Rating |
IP30 (with mounting bracket attached) |
Compliance |
|
Standards |
FCC, ISED, CE, UKCA, RCM, MIC-R, RoHS, REACH, WEEE |
|
|
|
Specifications are subject to change without notice |
The Auri Audio Receiver is a state-of-the-art assistive listening Receiver, allowing venues to provide hearing assistance to guests while meeting compliance with disability and accessibility requirements.
Unpack all contents from the box:
1x AURI-RX1 Receiver
1x Quick Start Guide and Safety Data Sheet
Remove the protective screen cover. The Receiver will not activate until charged, connect a USB-C power supply or insert in a Docking Station and fully charge before use. The Receiver LED will flash white while charging and be solid white at full charge.
The status screen shows a range of information about the Receiver and current connection.
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Indicates battery level and approximate remaining battery life in hours. |
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Shows when connected to an encrypted broadcast. |
|
Indicates broadcast quality (sample rate). SQ is shown when connected to a Auracast compliant 16 kHz or 24 kHz broadcast, HQ is shown for high quality 48 kHz connections. |
|
Displays whether the Receiver is currently connected to headphones or to a neck loop lanyard. |
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Indicates current signal strength, a flashing line through this icon represents no connection. |
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The name of the currently connected broadcast. If there is no connection this will indicate the broadcast that the Receiver is trying to connect to. |
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Scan icon, pressing the soft button below this will initiate a new scan. |
When navigating a list or menu the icons above the soft buttons will change to represent the button function.
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Scroll down a list, used when selecting from available broadcasts. |
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Select, press to choose the active list item. |
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Back, steps one level back up the menu structure. |
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The arrow indicates the currently selected option in the list, this is also represented by a larger font size. |
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The tick mark indicates the currently active option. |
Power / Status Button
A 1 second press of the Power button will turn on the Receiver.
Once the Receiver is on a short press of the Power button shows the status screen, this includes when any other screen such as volume, list or menu is showing in which case the Power button exits the current menu or screen.
When the status screen is active a short press of the Power button turns the screen off.
A 3 second press of the Power button turns the Receiver off, wait until the power icon is shown on screen then release the button.
Adjusting Volume
Pressing the volume controls from the status screen or with the screen off will adjust the volume in increments of 5%. Pressing and holding either volume button will continue to increase or decrease the volume in regular steps.
If no audio is currently available on the receiver a beep tone will be output with each volume change to give a representation of the new volume level.
Accessing the Menu
Press and hold Power and Volume Down for 2 seconds to access the menu.
Activating Channel Lock
Press and hold the Scan / Select button for 10 seconds, until the scan icon disappears to enable channel lock. Repeat the process until the scan icon is shown again to disable channel lock.
The Receiver battery must only be replaced with a genuine Auri LA-367 replacement battery. Loosen the screw in the rear of the Receiver, slide down and remove the battery door. Unplug the battery connector from the Receiver and dispose of the battery according to local regulations. Connect the new battery to the Receiver, refit the battery door and tighten the screw.
The Receiver has a range of optional settings that affect how it operates and the preferred behaviour when scanning and selecting available broadcasts.
To configure these settings the Receiver must be in a compatible Auri D4 or D16 Docking Station and connected to the Auri Manager software.
Enabled (default) – will only show broadcasts from Auri Transmitters in the list, regardless of other settings.
Disabled – will show broadcasts from other 3rd party Auracast Transmitters, so long as they match other criteria such as Library Lock or Channel Lock settings.
Enabled – the Receiver will only display and connect to broadcasts which have been pre-programmed into its library via the Docking Station.
Disabled (default) – the Receiver will list any broadcasts within range which match other criteria.
Enabled – the scan button cannot be used and is hidden on the Receiver display. The Receiver will always look for the broadcast that was active when channel lock was turned on, if the broadcast is not found within the auto off timeout, then the Receiver will turn off.
Disabled (default) – the scan button can be used as normal to find and connect to alternative broadcasts. When turning on the Receiver will scan and connect to channels based on the state of the other connection options.
Off – when the Receiver is turned on it will scan and present a list of available broadcasts for the user to select from.
Strongest Broadcast – when powering on, if Channel Lock is disabled, this will cause the Receiver to automatically connect to the strongest available broadcast.
Previous Broadcast – when powering on the Receiver will try to connect to the broadcast it was connected to prior to being turned off. If it cannot find that broadcast it will keep scanning for it until the Auto Off time expires or the user scans and selects an alternative broadcast.
Enabled (default) – the Receiver will automatically turn off and charge when power is applied via the Docking Station or USB-C and automatically turn on when power is removed.
Disabled – the Receiver must be turned on/off manually, this means it will stay connected and outputting audio when placed in the Docking Station or when USB-C is connected.
30 Minutes (default) – the Receiver will automatically turn off after 30 minutes unless connected to a broadcast.
20 Minutes or 10 Minutes – turns off after 20 or 10 minutes without a connection.
Off – disables the Auto Off feature.
Enabled (default) – the Receiver will turn on when headphones or a neckloop are connected to either of the 3.5mm ports and turn off after 1 minute when both ports are disconnected.
Disabled – the Receiver must be turned on/off manually.
Auto (default) – uses the light sensor above the Receiver display to automatically adjust display between bright and dim modes based on ambient light.
Bright – display is set to full brightness.
Dim – display is set to low brightness.
Off – display is set to low brightness and does not activate when adjusting volume.
Sets the volume level the Receiver will be set to when it is powered on. Default is 35%.
State |
Meaning |
Flashing White |
Charging |
Solid White |
Fully charged |
Flashing Red |
Firmware update in progress |
Fast Flashing Red |
Low battery |
Audio |
|
Audio Output |
|
Connection |
2x 3.5 mm TRRS connections for wired headphones or inductive neck loops, supports TRS or TRRS headphones |
Nominal Output Level |
0 dBu, 16 mW maximum |
Impedance |
32 Ω |
Audio Processing |
|
Frequency Response +/- 3 dB (system) |
16 kHz sample rate: 50 Hz – 7.5 kHz 24 kHz sample rate: 50 Hz – 11.0 kHz 48 kHz sample rate: 50 Hz – 19.5 kHz |
THD+N (system) |
< 0.5% Total Harmonic Distortion (at nominal level) |
Signal to Noise Ratio (system) |
> 60 dB (at nominal level) |
Latency (system) |
Auri RX1 – 29 ms to 45 ms (dependant on sample rate and mono/stereo) Other transmitters will vary |
Radio |
|
Bluetooth version |
5.3 |
Operating Frequency |
2400 to 2482 MHz |
Operating Mode |
Auracast™ Compliant, Broadcast Receive Only |
Supported Codec |
LC3 |
Encryption |
AES128-CCM encryption, with 4-16 character password |
Supported Formats |
Mono or Stereo |
Controls |
|
Buttons |
Power, Volume Up/Down, Two Front Multifunction Soft Buttons |
User Control |
Power on/off, display on/off, channel selection, volume up/down |
Setup/Programming |
Via Auri Manager Software/Docking Station |
Indicators |
|
Display |
31 x 16 mm (1.22 x .63 in), 64 x 128 pixel OLED display |
Display contents |
Channel playing, available channels, battery level with time remaining, signal strength, volume status, charging status |
Light Sensor |
Visible light, automatically adjusts display brightness |
Status LED |
RGB multi-function LED, see handbook for states |
Power and Charging |
|
Power Supply |
USB-C PD Compliant or Docking Station – 5 V, 500 mA |
Dock Connection |
4 contacts w/ magnetic latch for charging and programming via docking station |
Battery Type |
Lithium Polymer, rechargeable, field replaceable |
Battery Size |
3.7 Vdc, 730 mAh |
Battery Life |
> 20 hours |
Battery Charge Time |
Fully charged in < 4 hours (dead battery) |
Power Save Modes |
Auto Off – powers down on loss of audio (adjustable 0 – 30 minutes) |
|
Auto Power – powers down on charging and powers on when removed |
|
Jack Sense – powers down when jack is disconnected (1 min), powers on when jack inserted |
Physical |
|
Dimensions with Belt Clip |
90 x 54 x 23 mm (3.54 x 2.13 x 0.91 in.) |
Unit Dimensions |
90 x 52 x 16 mm (3.54 x 2.05 x 0.63 in.) |
Unit Weight |
0.07 kg (0.15 lbs.) |
Shipping Weight |
0.09 kg (0.20 lbs.) |
Enclosure material |
PC plastic (IR transparent) |
Colour |
Black, Chrome Volume Buttons |
Belt Clip |
Removable |
Battery Door |
Removable for battery replacement |
Environmental |
|
Temperature – Storage |
-40 °C (-40 °F) to 70 °C (+158 °F) |
Temperature – Operation |
-10 °C (14 °F) to 40 °C (+104 °F) |
Relative Humidity |
0 to 95% relative humidity, non-condensing |
IP Rating |
IP40 |
Compliance |
|
Standards |
CE, UKCA, RCM, REACH, WEEE |
|
|
|
Specifications subject to change without notice |
The Docking Stations allows for easy charging and management of Auri Receivers and are available in 4 or 16 unit options, with accessories such as the Docking Station case and intelligent cable management unit for the AURI-D16.
For a full description of features and configurations see the Auri Manager section of the handbook.
Unpack all contents from the box:
1x AURI-D4 or AURI-D16 Docking Station
1x LA-210 Power Supply
1x Quick Start Guide and Safety Data Sheet
Place the Docking Station on a flat surface or counter where Receivers are easily accessible.
Alternatively, the Docking Station can be mounted to a wall or other surface using the wall mounting slots (AURI-D4 and AURI-D16). Mount two screws with ¼” heads 6 inches (150 mm) apart on a wall. Align the centre of the wall mounting slots over the screws and slide the Docking Station down to secure in place.
Connect the Docking Station to a power outlet using the provided power supply.
Insert your Auri Receivers into the charging pockets of the Docking Station. The Receiver(s) top status LED will begin flashing white to indicate the battery is charging and turn solid when fully charged.
A cable management unit is available for conveniently storing headphones, ear speakers, neck loops, and other accessories (available for AURI-D16 only).
Status Button
Press the status button to illuminate the displays of all Receivers and show status information.
Copy Button
A momentary press (0 – 2 seconds) will copy the library of broadcast names and encryption keys from the Docking Station to all docked Receivers, the red LED flashes slowly during this process.
A long press (2 – 5 seconds) will copy the broadcast names, encryption keys and Receiver configuration settings from the Docking Station to all docked Receivers, the red LED flashes quickly during this process.
Holding the button for longer than 5 seconds cancels the operation, the red LED will go off to indicate no action will be taken.
A settings cog animation will show on Receiver screens whenever settings are being transferred from the Docking Station.
State |
Meaning |
Off |
OK |
Flashing Red and Amber then flash Amber |
Boot sequence |
Flashing between Amber and Red |
Firmware update in progress |
Slow Flash Amber (1s) |
Identify |
Medium Flash Amber (0.25 – 0.5s) |
Updating |
Fast Flash Amber (0.1s) |
System warning – check status in Auri Manager and power cycle Docking Station |
Solid Amber |
System error – check status in Auri Manager, power cycle Docking Station or contact support |
Slow Flash Red (while holding left button) |
Ready to transfer broadcast library |
Fast Flash Red (while holding left button) |
Ready to transfer broadcast library and Receiver settings |
Red, Off, Amber, Off |
Critical error |
Network |
|
Port speed |
100 Mbit |
IP address |
DHCP, static or link-local |
Protocols |
mDNS, UDP (unicast) |
Security |
UDP communication AES256-GCM |
Controls and Indication |
|
Buttons |
Copy and Status buttons Recessed restart and factory reset buttons |
Setup/Programming |
Via Auri Manager Software over network |
LEDs |
Copy LED (red) and Status LED (amber), see handbook for states |
Power |
|
Power Supply Input |
100-240 VAC, 50-60 Hz |
Power Supply Output |
12 VDC, 4.0 A, 48 W |
Power Supply Connector |
5.5 mm (.22 in.) OD x 2.3 mm (.09 in.) ID, barrel type |
Power Cable |
1.8 m (72 in.) Input Power Cable, 1.1 m (43 in.) Output Cable |
Physical |
|
Dimensions |
AURI-D4 – 50 x 192 x 150 mm (1.97 x 7.56 x 5.89 in.) AURI-D16 – 50 x 192 x 375 mm (1.97 x 7.56 x 14.77 in.) |
Unit Capacity |
4 or 16 Units |
Weight |
AURI-D4 – 0.65 kg (1.43 lbs.) AURI-D16 – 1.73 kg (3.81 lbs.) |
Shipping Weight |
AURI-D4 – 1.56 kg (3.44 lbs.) AURI-D16 – 2.79 kg (6.15 lbs.) |
Colour |
Black with chrome buttons |
Mounting |
Place on flat surface or use wall mounting slots |
Environmental |
|
Temperature – Storage |
-40 °C (-40 °F) to 70 °C (+158 °F) |
Temperature – Operation |
-10 °C (14 °F) to 40 °C (+104 °F) |
Relative Humidity |
0 to 95% relative humidity, non-condensing |
IP Rating |
IP20 |
Compliance |
|
Standards |
CE, UKCA, RCM, REACH, WEEE |
|
|
|
Specifications are subject to change without notice |
The Auri Manager software allows discovery and configuration of all Auri Transmitters, docks and docked Receivers over the network.
It can be downloaded from the Microsoft store, search for “Auri Manager” or use this link https://www.microsoft.com/store/productId/9NRJLR0V9QXH
The software should be installed on a Windows 10 or 11 PC with at least 300MB free space.
The PC running the application must be connected to the same network as the devices to be controlled, and in the same subnet. A “link-local” setup is supported, where a single ethernet cable between the PC and the Transmitter or dock allows each device to automatically negotiate a compatible IP address with no wider network infrastructure or DHCP server needed.
Discovery uses mDNS and communication relies on UDP within the ephemeral port range, there must be no firewall settings in place that restrict this traffic.
Usage |
Type |
Address |
Port |
Device discovery |
mDNS (Multicast) |
224.0.0.251 |
5353 |
Control |
UDP (Unicast) |
Device IP (DHCP, Static or Link Local) |
55666, 56666 |
Firmware Update |
TFTP |
Device IP |
69 |
Network Audio |
RTP (Multicast) |
239.255.0.0/16 |
5004, 5006, 5008, 5012 |
Network Audio |
RTCP (Multicast) |
239.255.0.0/16 |
5005 |
4. Power on the Transmitter (with PoE or USB-C).
5. Launch the software.
6. On the Devices page, identify the Transmitter you want to configure – this will be named “Auri-TX2N(-D)-SerialNumber”. If no Transmitter is shown, wait a short while, in a link-local configuration the Transmitter can take up to 2 minutes to obtain an IP address. New devices should be shown automatically, if not click the Refresh button to manually rescan. If the device still isn’t shown a firewall exception may be needed, see the Troubleshooting section for more information.
7. Click on the Transmitter name, in the dialog enter the username and password you would like to use to manage your devices, confirm the password and click Next.
8. In the next dialog enter the default username and password for your device, each device has a unique password, the defaults are printed on a label on the rear of the Transmitter.
9. On the Inputs page, select the right microphone or line mode for each input and enable phantom power if needed.
10. With audio signals playing or someone speaking into the microphone, set a suitable input gain, such that the stream meters read around -18 dBfs.
11. If using a microphone directly into the Transmitter, consider enabling the Low Cut filter on the relevant stream, and AGC where input levels may be variable.
12. Navigate to the Outputs page and set Broadcast Name to something which users will be able to relate to the coverage area, for example the room name. Change Stream Name (Program Info) if desired.
13. Adjust encryption and sample rate settings as required.
14. If the second stream is being used, turn on the toggle switch to enable the radio and adjust the settings.
15. The Transmitter should now be broadcasting audio, connect a Receiver to confirm.
16. Adjust Transmit Power to the lowest level that provides full coverage of the intended area when the space is fully occupied.
When first opening the application it will present a Devices list screen, with Devices and Version tabs to the left. Once logged in an additional Account tab will be shown.
On the Devices page each online device name is a clickable link, when clicking a device link for the first time you will be presented with a login dialog. If the device has already been configured it will prompt for the existing admin credentials. If the device is in factory defaults you will first be asked to provide the username and password you would like to use to manage your devices, then the default credentials which are printed on a label on the rear of the device.
Once authenticated with the first device, the software will automatically login to any other devices on the network which share the same credentials.
Note that there is no way to recover credentials once setup, other than a Factory Reset of the device. Ensure credentials are recorded in a secure place such as a password manager.
When logging in a Remember Me checkbox is enabled by default. When ticked this securely stores the username and password used to authenticate with the devices. Next time the application is opened you will be immediately prompted for the password. Entering the correct password will allow the software to authenticate with all online devices.
Application State |
Device State |
Auth Column |
Device Link Action |
Logged Out |
Factory defaults |
None |
Prompts for new credentials to be used, then prompts for device default credentials, then loads device page |
Logged Out |
Existing admin account |
None |
Prompts for username and password, then loads device page |
Logged In |
Correct credentials |
Admin |
Loads device page |
Logged In |
Factory defaults |
Default |
Prompts for device default credentials, sets up new admin account with current application credentials, then loads device page |
Logged In |
Incorrect credentials or unresponsive device |
Failed |
Prompts for device credentials, option to either switch account or overwrite the existing account with current application credentials, then loads device page |
The devices page provides a list of all Transmitters and Docking Stations which the software has been able to discover on the network. It also lists devices which have previously been discovered but are not currently online.
There is a toolbar along the top which supports some key device functions, the available buttons will depend on your authentication state and which devices are currently selected.
The devices page can be toggled between the default table or a tile-based view, using the buttons on the right of the toolbar.
The selection below describes the controls, see Updating Firmware for more information on the firmware update process.
Active only when one or more online and authenticated devices are selected. Identify flashes an LED on the selected devices for 60 seconds. This helps confirm the right physical device is being selected before any further configuration and proves that network communication is working as expected.
Active only when one or more offline devices are selected. Allows offline devices to be removed from the list if these are not likely to be connected again.
Active only when one or more online and authenticated devices are selected. Up to 4 levels of location hierarchy can be set to group devices when large numbers are available on the same network. For instance, in a university this may be used to segment devices by campus, building, floor and room.
Each input field will show a dropdown of existing locations at that level, which will be filtered as you type. To create a new location, click on the “Create New: location” option, or press the enter key. Existing locations are represented in blue, new locations are shown in green. Once all desired location levels have been set, click the Assign button.
Locations are then represented by a folder tree in the left side of the device listing. Clicking on folders filters the list to only show devices grouped within that location and shows any further levels of location nested below.
To see all devices click on the “Root” folder at the top of the list.
The management software supports notifications for certain events. Notifications can be accessed by clicking the icon in the top right corner, which is available from all pages within the application. The icon also shows the number of new, unread notifications.
New, unread notifications show the device name in bold to distinguish them from previously seen notifications.
Some notifications in the panel can be clicked to see more detail in a dialog window.
Each notification can be individually dismissed by clicking the X on the right of the notification.
All current notifications can be dismissed using the “CLEAR” button at the bottom of the panel.
Click the icon again or anywhere in the main window to dismiss the notification panel.
This page allows configuration of the physical mic/line or Dante inputs to the device, as well as choosing how these are routed to each of the two streams that the Transmitter supports.
Input Controls
Stream Controls
The streams are the audio channels which are managed by the transmitter, these streams can be broadcast over Auracast, sent to the analogue line out or sent over network audio to other Transmitters. Each stream runs in stereo within the Transmitter.
The outputs page is primarily for adjusting Auracast related settings, but also allows control of functions such as an analogue line output.
* Changes to these settings will cause the radios to restart, this will lead to a short loss of audio. Auri Receivers will automatically reconnect when the broadcast becomes available again, however 3rd party receivers may need to be manually reconnected.
This page provides visibility and configuration of parameters relating to the Transmitter itself.
Tick boxes allow selection of which parameters to be saved based on the software settings pages, the system tick box includes device location. Select all for a complete device backup.
Usernames and passwords are never stored in a configuration file.
On Export the settings will be stored in an encrypted .auri file, named after the device name, date and time of export and saved locally in My Documents\Auri.
To import an existing settings file to a device you must first be authenticated with the same username as the device the file was exported from, then click Import and select the file. All settings stored in the file will be copied to the device regardless of which tick boxes are selected.
This page is primarily to view and configure Receivers currently within the dock.
Receiver Settings
Docking stations are able to store a full Receiver configuration, the current configuration stored on the dock is read back to the controls at the top of this page and can be adjusted as required. Any settings changes will be immediately applied to all currently docked Receivers.
For an overview of the Receiver settings, see the Receiver section of the handbook.
Update Settings
When library or settings are updated on docked Receivers, a spinning gear icon will be shown on screen.
A table is shown representing the number of slots in the Docking Station, when a Receiver is in any of the slots it will show in the corresponding table row, with the battery level, status, firmware version and serial number. There are also two buttons in each table row –
A single toolbar button is available –
The docks can store a library of up to 32 broadcast names and privacy keys if needed. This library can be set to either automatically update any Receivers as soon as they are inserted into the dock, or so that a button press is needed on the dock for a transfer to happen.
The library is provided so that Receivers can connect to encrypted streams without having to manually enter a password, but also allows the Receiver to be locked down so that it will only connect to one or more pre-configured broadcasts.
This page allows each of the 32 library entries to be manually entered, or alternatively you can search and select from streams available from any Transmitters currently on the network, to copy the broadcast name and privacy keys automatically into the dock library.
The right panel will load the current broadcast library from the active dock. Each of these rows can be manually edited or can be removed by clicking the bin icon on the right.
A new blank row will automatically be added as needed, until all 32 rows are used.
The left panel lists the broadcast names for all online and authenticated Transmitters, so these can be selected to add into the dock library. Click anywhere on a row to add it into the dock library, the row will then be shown in a darker grey to indicate it is already present in the library.
In larger systems the search bar can be used to help find the required Transmitters and broadcasts.
Matches the options available on the Transmitter Settings page, with the exception of controls mentioned below.
The account page can be used to update the username and password used to authenticate with devices or delete the account entirely.
If the account is deleted, the factory default username and password will be reactivated.
Note that changes on this page can only be applied to devices which are currently online and authenticated. It is recommended to ensure all devices are connected when a change is made to avoid some devices being left on old credentials.
Changes to the account details will apply to ALL online authenticated devices.
The current username will be pre-filled.
Usernames can include alphanumeric characters plus period, hyphen and underscore. Passwords support all characters.
Displays contact information and the currently installed software version number.
3. Select one or more devices to be updated, then click Update FW to start the update.
4. The device states will show “Transferring” with a percentage to indicate progress while the file is sent to the devices, and a notification will be added.
5. Once Transferring completes the state will change to “Extracting” with a percentage to indicate progress while the devices are unpacking and checking the file is valid, and a notification will be added. This will take approximately 5 minutes.
6. Once the file is ready to be installed, the device will restart, state will show “Updating” with a percentage to indicate progress, and a notification will be added, this will take approximately 1 minute on a Docking Station and 5 minutes on a Transmitter.
7. At the end of installation the device will restart again and be rediscovered by the application. Confirm the firmware version has been updated as expected.
8. If the update fails for any reason, restart the device and try again. If it fails repeatedly contact support.
9. Note that the software must remain open and connected to the device until at least the “Updating” stage has started, if it is disconnected at any point before this the update will fail. The devices must stay powered on until the entire update has completed.
Receiver firmware is included within the Docking Station firmware package.
By default the Transmitter broadcasts open, unencrypted streams. This is the recommended approach in public areas where ease of access for people using personal devices is most important. For more secure environments encryption can be enabled to limit who can connect to the broadcast.
In scenarios where a single Transmitter is not able to cover the required area, multiple Transmitters can be linked together, enabling broadcast of the same audio content.
Auri Receivers are able to automatically connect to alternative Transmitters using the same broadcast settings. This means that if a user moves out of range from a Transmitter, once the signal has disconnected the Receiver will automatically scan and if an alternative Transmitter is available it will reconnect. It also means that when turning on a Receiver, if settings such as connection lock, library lock, or auto connect to previous are enabled, the Receiver will be able to connect to any Transmitter that matches the broadcast settings.
When performing a manual scan within range of multiple Transmitters using the same broadcast name, the Receiver will only show one of them in the list, and connect to the one with the strongest signal.
Note that other third party Auracast receivers may not support automatic reconnection or roaming between Transmitters.
There are two parts needed for a repeater configuration.
Repeaters will generally need the same audio content to be connected to all Transmitters, this can be done by splitting the input audio signal, patching the same Dante output to all Transmitters, or by using the Auri network audio support.
To use network audio all Transmitters must be on the same network subnet. Network audio is sent as muticast RTP traffic, and it is strongly recommended to have IGMP configured properly if connecting to a wider network as without this multicast traffic will be treated as broadcast to all network hosts. This is not necessary if using Auri on a standalone, isolated network in which case a simple unmanaged switch can be used.
Start by making sure that a suitable audio source is connected to the primary Transmitter and that the input and stream settings are adjusted to give a suitable signal level. Connect to the broadcast and confirm everything works as expected with a single Transmitter.
In Auri Manager, go to the Inputs page of the repeater, click the “Source 2 (Network Audio)” dropdown and select the primary Transmitter from the list.
Both Transmitters will be configured automatically for network audio, confirm that the meters on the repeater are showing similar signal levels to the primary Transmitter.
Certain Output settings should be matched on the repeater to ensure that they work effectively together.
As a minimum, sample rate must be set to the same value, this will be automatically configured when setting network audio sources, but if changing sample rate later then all Transmitters within the network audio group must be updated to the same sample rate.
In most cases the broadcast name, encryption settings and stream name should be set the same as well, this will allow Auri Receivers to automatically connect to repeaters if they drop out of range from the primary Transmitter.
Once one repeater is configured, output settings can be quickly copied to other repeaters by using the Import/Export Settings option and selecting just the Output tick box when exporting a file from the first repeater. This same file can then be imported into any number of repeaters to configure their outputs.
There may be cases where it is preferable to name the broadcasts differently, for instance where Transmitters are allocated to different sections of a theatre naming the broadcasts as “Stalls” and “Circle” could help users connect to the most appropriate Transmitter. Note that in this configuration the Auri Receiver will not be able to automatically connect to repeaters. If a user moved out of range and the repeater is named differently, the user would have to rescan and connect to the alternative Transmitter.
Ensure devices have a network connection, are powered on and are on the same network subnet as the PC running Auri Manager.
If using link-local the devices will take around 2 minutes to obtain an IP address and be discovered.
Click the “Refresh” button
In most cases Auri Manager will request access to the network when first opened and permission should be granted, if no devices are being discovered then check the firewall settings; this is most commonly needed in link-local configurations.
In the Windows Start Menu search for “Allow an app through Windows Firewall”.
Click “Change settings” then scroll down the list to find “Auri Manager” and enable the checkboxes in all available columns.
Make sure the Auri RX1 Receiver has a fully charged battery or is connected to a standard USB charger. Make sure the power button on the right side of the unit has been pressed for 1 second to turn the unit on. If this does not work, make sure the battery is installed properly or install a replacement battery. If using the Receiver for the first time, fully charge it using a USB charger or Auri Docking Station before use.
Make sure the Receiver is within range of the Transmitter. If the broadcast is encrypted, ensure the details have been stored in the Receiver library through Auri Manager and a network connected Docking Station. Ensure the Receiver does not have “Library Lock” enabled, if so make sure the broadcast is added to the Receiver library.
Make sure the Auri RX1 Receiver is connected to the correct broadcast. Make sure the Auri TX2N Transmitter is powered on and has an audio source connected. Review the Transmitter Input settings in the Auri Manager application, make sure the correct input mode is selected, the stream sources are configured correctly and adjust the input gain such that the stream meters read approximately -18 dBfs. Make sure there is a suitable headphone or neck loop connected to the Auri RX1 and that the volume is set to a suitable level.
Review input mode and input gain on the Transmitter in the Auri Manager application. Adjust settings such that the stream meters read approximately -18 dBfs. Verify that the source audio being sent to the Transmitter is clean and undistorted.
A firmware error can be shown due to a failed update or a corrupted image on the device. In some cases this may mean the device is running a recovery image with limited functionality. First try restarting the device and see if the state recovers to Online when rediscovered by Auri Manager. If the device still shows a Firmware Error after restarting, try installing the latest available firmware package for that device. If the error persists or the firmware update fails contact support.
The Transmitters and Docking Stations can be restarted into a recovery image by holding down the factory reset button while power cycling the device. After this has been done the device will be on the original firmware release with all settings erased. Update the firmware to the most recent version and reapply settings as needed.
A complete range of accessories is available to complement your Auri system.
Neck loops allow Receiver compatibility for users with telecoil equipped hearing aids and cochlear implants.
The Auri RX1 is compatible with standard 3.5mm headphones or earbuds, a range of options are available from your Auri dealer.
Other accessories include spare battery packs, one-port USB chargers, cases and signage.
For a full list of Auri accessories visit www.auriaudio.com
FCC Regulation Statements:
FCC part 15 subpart C (FCC ID: 2BHN3TX2N)
FCC part 15 subpart B
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and Receiver.
—Connect the equipment into an outlet on a circuit different from that to which the Receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications made to this device that are not expressly approved by Listen Technologies may void the user’s authority to operate the equipment.
The information in this guide may change without notice. The manufacturer assumes no responsibility for any errors that may appear in this guide.
ISED Regulation Statement:
ISED RSS-247 issue 3 (IC ID: 32898-TX2N)
CAN ICES-3 (B)/NMB-3 (B)
This device complies with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
Cet appareil contient des émetteurs/récepteurs exempts de licence qui sont conformes aux RSS exemptés de licence d’Innovation, Sciences et Développement économique Canada. L’exploitation est soumise aux deux conditions suivantes:
For Users in the European Union
This device is a Bluetooth Low Energy system operating in the 2.4 GHz frequency band from 2.400 GHz to 2.482 GHz. The usage of this device is generally allowed in all EU countries, Australia, New Zealand, Singapore, and Hong Kong. Product labelling information such as serial number, manufacturer, and additional regulatory information is found on the product label on the device.
EU Declaration of Conformity
Hereby, Ampetronic and Listen Technologies declares that the radio equipment type AURI-TX2N, AURI-TX2N-D, AURI-D4, AURI-D16 and AURI-RX1 is in compliance with:
Radio Equipment Directive 2014/53/EU
ETSI EN 300328 V2.2.2
Electromagnetic Compatibility Directive 2014/30/EU
ETSI EN 301489-17 V3.2.4
EN 55032:2015+A1:2020
EN 55035:2017+A11:2020
EN 61000-3-2:2019+A1:2021
EN 61000-3-3:2013+A2:2021
Low Voltage Directive 2014/35/EU
EN62368-1:2020+A11:2020
RoHS 3 Directive EU 2015/863
REACH EC 1907/2006
WEEE Directive (2012/19/EU)
Battery Directive (2006/66/EC & 2013/56/EU)
If you wish to discard electrical and electronic equipment (EEE), please contact your dealer or supplier for further information.
The full text of the EU declaration of conformity is available at the following internet address: www.auriaudio.com
Japan
Radio Ordinance Article 2, paragraph 1, item 19 (MIC ID 205-240087)
Ampetronic and Listen Technologies warrants the AURI-TX2N, AURI-TX2N-D, AURI-D4, AURI-D16 and AURI-RX1 to be free from defects in materials and workmanship under normal use and conditions for 5 Years from the original date of purchase.
Lithium polymer batteries supplied with receivers carry a one year limited warranty from date of purchase.
Related accessories such as headphones and neck loops carry a one year limited warranty from date of purchase.
For the current warranty conditions, please visit our website at www.auriaudio.com or contact your local dealer.
LISTEN TECHNOLOGIES 14912 Heritage Crest Way, Bluffdale, Utah 84065-4818 USA
Phone: +1.801.233.8992 Toll-Free: 1.800.330.0891 www.listentech.com
AMPETRONIC Unit 2, Trentside Business Village, Farndon Road, Newark, NG24 4XB, United Kingdom
Phone: +44 1636 610062 www.ampetronic.com
Copyright © 2024. All rights reserved.
14912 Heritage Crest Way
Bluffdale, Utah
84065-4818 USA
Phone: +1.801.233.8992
Toll-Free: 1.800.330.0891
Office Hours
8:00 am – 5:00 pm MT
Monday – Friday
First, select the calculator type, USA (for Americans with Disabilities Act - ADA), California (for California Building Code), or Australia (for Australia's Disability Discrimination Act 1992). Enter the seating capacity and the number of minimum assistive listening devices required and the minimum number of neck loops will automatically populate based on the calculator type selected.