Test Doc 2

Introduction

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 System Components

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.

Safety Instructions

Important Information and Intended Use

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.

Important Safety Instructions

1. Read and keep these safety instructions and the instruction manual of the product. Always include all instructions when passing the product to third parties.
2. Heed all warnings and follow all instructions.
3. This product is designed to amplify audio to a high-volume level which could potentially cause hearing damage if used improperly. To protect your hearing make sure the volume is turned down before putting on the headset, then adjust the volume to the minimum setting required to hear clearly. Do not allow children or other unauthorized individuals to access this product without supervision.
4. Before using this product with an implantable or other medical device, consult your physician or manufacturer of your implantable or other medical device. Always make sure you are using this product in accordance with the safety guidelines established by your physician or the implantable device manufacturer.
5. Do not expose to direct sunlight for long periods of time.
6. Do not store near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
7. Do not expose this apparatus to rain or moisture.
8. Clean only with a dry cloth. Cleaning fluids may affect the equipment.
9. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, when the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

Battery

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.

Notes on Disposal

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.

Transmitter (AURI-TX2N / AURI-TX2N-D)

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. 

Unpacking

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

Installation

Requirements

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.

Initial Setup

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 disabled. 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.

Locating the Transmitter

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.

See US Auri Coverage and Installation Guide.

See Rest of World Auri Coverage and Installation Guide. 

Transmitters should be installed at a height above  6 feet (1.8 meters) on a wall or ceiling and the Auri logo must always be facing towards the intended coverage area. 

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. See Commisioning Tools section for more information. 

The Transmitter range will be affected by the sensitivity of the receiving device, different building environments and the density of other devices operating in the same frequency band. In larger or more complex spaces it is advisable to carry out an RF coverage design and site test to confirm best placement and number of transmitters needed for full coverage. Further details can be found in the Commissioning Tools section. 

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 placed appropriately will provide much greater range and consistency of coverage.

Cabling

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.

Installing the Bracket

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. 

Configuring the Transmitter

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.

Positioning Transmitters in Close Proximity

In some venues, there may be a need to use 2 or more transmitters to cover the same area with multiple channels. If this is required, then the transmitters should be positioned at least 30 cm (1 ft) apart to prevent any unwanted interactions. 

LED States

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

Restart/Factory Reset

Two recessed buttons are located between the USB-C socket and mic/line input 1.

1. Factory reset. The device can be reset through the Auri Manager software, however if it cannot be accessed through the software, for example due to incorrect network configuration or forgotten credentials then it can be reset by holding this button for 5 seconds or more. As soon as the status LED goes off the button can be released, the Transmitter will come back online with default settings restored.
2. Restart. The device can be restarted through the Auri Manager software, however if it cannot be accessed through the software then it can be reset with a momentary press of this button. Note that this will not change any settings, it is the equivalent of turning the Transmitter off and on again.

Technical Specifications

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 (Balanced Inputs)
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 (Balanced)
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 Privacy Keys
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 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 – 1.03 kg (2.27 lbs.) TX2N-D – 1.05 kg (2.31 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

Receivers (AURI-RX1)

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.

Unpacking

Unpack all contents from the box:

1x AURI-RX1 Receiver

1x Quick Start Guide and Safety Data Sheet

First Use

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.

Note that the Dock is required to charge the RX1, plus connection to the network is required for configuration and firmware updates via Auri Manager. 

General Operation

1. Press and hold the Power button for 1 second to turn Receiver on. The Receiver will turn on automatically when removed from the Docking Station, or when USB power is unplugged.
2. The Receiver will scan for available Auri broadcasts, when there is a single broadcast the RX1 will connect to that broadcast automatically. If more than one broadcast is available then the RX1 will list the available broadcasts in order of strongest signal. In the event of no broadcasts being found, this will be indicated on screen by way of a no signal symbol. 
3. Plug headphones, ear speaker, earbuds or compatible neck loop into the headphone and loop lanyard jacks.
4. Activate the display by a momentary press of the power or either of the front buttons.
5. Press the front right “scan / select” button to look for other broadcasts, these will be presented in a list which can be scrolled using the front left button or by the volume up and down buttons. Use the “scan / select” button again to connect to the highlighted broadcast.
6. Adjust volume by pressing volume up and down buttons.
7. To power down, press and hold the Power button for 3 seconds.

Display

The status screen shows a range of information about the Receiver and current connection.

	Indicates battery level and approximate remaining battery life in hours.
	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.
	Indicates current signal strength, a flashing line through this icon represents no connection.
	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.
	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.

	Scroll down a list, used when selecting from available broadcasts.
	Select, press to choose the active list item.
	Back, steps one level back up the menu structure.
	The arrow indicates the currently selected option in the list, this is also represented by a larger font size.
	The tick mark indicates the currently active option.

Common Operations

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 Scan Lock

Press and hold the Scan / Select button for 10 seconds, until the scan icon disappears to enable scan lock. Repeat the process until the scan icon is shown again to scan channel lock.

Battery Replacement

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.

Receiver Settings

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 either be in a compatible Auri D4 or D16 Docking Station and connected to the Auri Manager software, or they can be configured via the RX1 Menu. 

To configure the Receiver via Auri Manager, see Portables section in this manual. 

Configuring the receiver via the Rx1 Menu is easy to do. Press and hold the power and volume down buttons together for > 2 seconds. 

The User Menu will become visible, navigation is by way of the volume up and down buttons to scroll, the left side soft button to go back and the right-side soft button to enter selection. 

Auri Only 

Enabled (default) – will only scan for broadcasts from Auri Transmitters and display them in the broadcast list, regardless of other settings.

Disabled – will scan for broadcasts from Auri and other 3^rd party Auracast Transmitters, and display them in the broadcast list. Note: Library Lock and Scan Lock settings need to be disabled for 3rd party broadcasts to be listed. 

Library Lock

Enabled – the Receiver will only display and connect to broadcasts which have been pre-programmed into its library via the Docking Station and Auri Manager

Disabled (default) – the Receiver will list any broadcasts within range which match other criteria.

Scan Lock

Enabled – the scan button cannot be used and is hidden on the Receiver display. 

Disabled (default)—The scan button can be used as normal to find and connect to alternative broadcasts. When the Receiver is turned on, it will scan and connect to broadcasts based on the state of the other connection options.

Auto Connect

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, this will cause the Receiver to automatically connect to the strongest available broadcast.

Previous Broadcast (default)– 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.

Auto Power

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.

Auto Off

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.

Jack Sense

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.

Display Brightness

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.

Default Volume

Sets the volume level the Receiver will be set to when it is powered on. Default is 35%.

Commissioning Tools

Within the RX1 Menu there is a Commissioning heading. The commissioning tools have two purposes, but both are designed to provide a smiple way of confirming that the Auri transmission is suitably positioned for the venue and the signal quality is adequate across the venue. 

TX Survey

Provides a guide of general coverage across a venue simply by powering on a transmitter, so no need to connect audio, connect to a broadcast or install, simply position and carry out a site walk for an indication of the RSSI and if the coverage will result in good signal integrity with the transmitter placement. 

Signal Quality

Provides a measure of the signal quality for a given selected broadcast. The user will need to select a broadcast channel for this tool to correctly function, and it is assumed the transmitter has been installed and audio is connected. The user can carry out a site walk and the signal level meter will indicate the quality level, which has three regions, Good, Fair, and Poor. It also includes a measure of interference which can indicate if the venue is suffering from Wi-Fi or other signal interference. This is noted as a wireless symbol with an exclamation mark through it. 

More details on the tools and how to use them can be found in our Commissioning Tools Guide. 

LED States

State	Meaning
Flashing White	Charging
Solid White	Fully charged
Slow Flashing Red	Firmware update in progress
Fast Flashing Red	Battery error

Technical Specifications

Audio
Audio Output
Connection	2x 3.5 mm connections for wired headphones or inductive neck loops, supports TRS 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 Privacy Keys
Supported Formats	Mono or Stereo
Controls
Buttons	Power, Volume Up/Down, Two Front Multifunction Soft Buttons
User Control	Power on/off, display on/off, broadcast 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	Broadcast playing, available broadcasts, 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

Docking Stations (AURI-D4 / AURI-D16)

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.

Unpacking

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

Installation

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.

Connect the Docking Station to a Network, or to a PC for LinkLocal connection via an Ethernet cable, to enable configuration and control via the Auri Manager. 

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.

LA-382 Intelligent Cable Management Unit

A cable management unit is available for conveniently storing headphones, ear speakers, neck loops, and other accessories (available for AURI-D16 only).

General Operation

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.

LED States

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
Alternating Red/Amber	Critical error

Restart/Factory Reset

Two recessed buttons are located opposite the RJ45 socket.

1. Restart. The device can be restarted through the Auri Manager software, however if it cannot be accessed through the software then it can be reset with a momentary press of this button. Note that this will not change any settings, it is the equivalent of turning the Docking Station off and on again.
2. Factory reset. The device can be reset through the Auri Manager software, however if it cannot be accessed through the software, for example due to incorrect network configuration or forgotten credentials then it can be reset by holding this button for 5 seconds or more. As soon as the status LED goes off the button can be released, the Docking Station will come back online with default settings restored.

Technical Specifications

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

Auri Manager

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 Microsoft Store.

Auri Manager also can be requested from the website for those users who don’t have or are not able to use Microsoft Store services. 

https://www.auriaudio.com/products/auri-manager-software/ 

Installation Requirements

The software should be installed on a Windows 11 PC with at least 300MB free space. With the addition of Auri Manager v1.6, Windows 10 is no longer supported. 

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.

The Auri Manager includes a new feature from v1.3 onwards which allows a user to manually input the IP addresses of each device in the event that mDNS has been disabled. 

Network Requirements

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

Quick Start – Minimum Transmitter Setup

1. Install the software.
2. Connect a network cable between the PC and the Transmitter.
3. Connect the intended audio inputs.

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. A new device will be shown as an Auth state of “Default.”

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. Enter the default 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 broadcast 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.

System Setup

When first opening the application it will present a Devices list screen, with Devices and System tabs to the left. Once logged in an additional Credentials 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 Manage Device Credentials. If the device has already been configured with current user credentials, it will automatically bring up the Input Page for that device. If the device is in factory defaults you will first be asked to provide 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 any device which the user has not provided the default credentials for will remain as Default Auth state and the user will not be able to access that device. 

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

Remember Me

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, the username and password shall be entered for the user and they can sign in. 

Entering the correct password will allow the software to authenticate with all correctly authenticated online devices. 

Authentication States

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

Devices 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.

Status Monitor

The Status Monitor is a simple indication within the Device List which will indicate to users if there is a Warning or Error associated with any device.

 

A Warning will be highlighted with a Yellow Icon and an error will be indicated with a red icon.  When the icon is clicked on, it will display a popup which will provide additional information about the nature of the issue. 

Firmware Update

The section below describes the controls and features of Firmware, and the firmware update process. 

Our start up Auri Manager now checks for new updates which may available. If an update is available, then the user will be notified and can make a decision what to do about it. 

Auri Manager will check for devices which have outdated Firmware and label them with an icon in the device list for ease of identification. 

• Firmware – the tab in the bottom left of the software window opens a panel showing the available firmware packages. If no firmware has been downloaded yet then this will be blank, use the Download or Browse FW buttons to find available updates. When there are firmware updates available in this panel, one can be selected in order to apply it to online devices. Whenever a firmware package is selected the Devices list will be filtered to only show devices compatible with the selected firmware file. Click the Firmware tab again to close the panel.
• Download FW – automatically downloads available firmware packages from an online repository. The Firmware panel will be automatically opened at the start of this process, it may take a few seconds for firmware packages to start being added to the list.
• Browse FW – allows opening of firmware packages which have already been downloaded to a local storage location. Primarily used when Auri Manager is being used on a PC with no internet access. Once a firmware package has been opened the Firmware panel will be automatically opened.
• Update All Devices – A firmware package, and a minimum of one compatible device, which is online and authenticated, needs to be available to enable this button. Click on the Update All Devices button to transfer the firmware update package to all available devices and instigate the update.
• Update Selected Device(s) – a firmware package and at least one selected device from the device list needs to be available to enable this button. Click on “Update Selected Devices” to transfer the firmware update package to the selected devices in the device list and instigate the update. 
• NOTE: The update will take around 10-15 minutes in total. The device status will be updated to show progress, and notifications will be provided at key points in the firmware update process.

Updating Firmware

Transmitters and Docking Stations

1. Open the Firmware window at the bottom of the left side of the screen. 
2. Make sure the firmware package has been added to the application, using either the Download FW or Browse FW options. 
3.  Next, select the firmware package to be installed. Selecting a firmware package by clicking on “Update All Devices” will automatically upload that file to all suitable devices in the device list. 
4. Alternatively select one or more devices to be updated in the device list, then click on the “Update Selected Devices” button to start the update for those selected devices only. 
5. Once initiated, the device state will show the following thee stages with a % complete for each stage. “Transferring,” “Extracting,” and “Updating,” this will take approximately 6 minutes on a Docking Station and 10 minutes on a transmitter. 
6. 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. 
7. If the update fails for any reason, restart the device and try again. If it fails repeatedly, contact support. 
8. NOTE: The software must remain open and connected to the device until at least the “updated” stage has started. If it is disconnected at any point before then, the update will fail. The devices must stay powered on until the entire update has been completed. 

Receivers

Receiver firmware is included within the Docking Station firmware package. 

1. Ensure the Docking Station has been updated with the version to be installed on the receivers. 
2. By default, Docking Stations will be set to automatically update any receivers that are docked running an older version. In this mode, just dock the receiver and the update will start. 
3. To disable the automatic update function, go to the Docking Station Device page and turn off the “Auto Update Portables” toggle. 
4. To manually start a receiver firmware update, go to the Docking Station Portables page and click “Update All FW” at the top left of the screen. This will update all docked receivers.                   
5. The receivers will show “Updating” in the status column with a percentage to indicate progress. The software can be closed while this is in progress. 
6. While a receiver is updating, the top LED will flash red. It should not be removed from the dock while this is happening. When the LED goes white again, the update is complete and the receiver can be removed. 
7. Receivers are updated in parallel, this means the update will take longer to complete if more receivers are docked when the update is started. 

Add Device

Users can now, from Auri Manager v1.3, manually add a device to the Device List. This is particularly useful when mDNS is not possible due to venue network restrictions. 

Enter the IPAddress of the device in the window as shown above and click “Search” if a valid device is found, it will be added to the table in the pop up window. Multiple devices can be added at one time. 

Once all devices are found, the user can click the “Add” button, and the devices will be shown in the device listing page. 

Manage Device Credentials

Credential management feature allows a user to expand the way they interact with devices. Here are some examples: 

1. Single user: As a single administrator, you can create an account on your PC with a set of credentials then any device which you enter default credentials for, will take on the user login credentials you have used. 

2. Single user multiple sites: As a single administrator, you again create an account on your PC with a set of credentials as above, you can assign devices to your login credentials for local on-site administration of devices, plus you can create one or more additional credential sets for another site. 

This is useful for users who may have responsibility across campuses or multiple sites and will enable them to apply different credential sets to groups of devices rather than having a single set across all devices. 

Identify

Active only when one or more online and authenticated devices are selected. Identify flashes a white 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.

Remove

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.

Set Location

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. These can be used to quickly prefill that location for the current device. 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.

Restart All

A recent addition to Auri Manger is the ability to restart all selected devices simultaneously instead of going to each one in turn, making more sense with larger installations. Either manually select a single, multiple devices or check the tick box next to “name” to select all online devices, then select “confirm.” 

Notifications

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.

Help Icon

Each page has additional text to explain and support the user on how the functionality and features of that page are supposed to behave. 

Click on the help icon  to open the help text and click anywhere on the page outside the help section or click the help icon again or click the X to reduce this again. 

Transmitter Configuration

When accessing a Transmitter, you will initially be presented with an Input screen. There are two other pages for Output and Settings configuration.

Input

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

• Input 1/2 Mode – this allows selection of microphone or line level input to set the right signal level. For Dante enabled devices a Dante option will also be available in this dropdown.
• Input 1/2 Phantom Power – enables +24V phantom power for the given input to support condenser microphones. This is only shown when the input is in microphone mode.                                  
• Input 1/2 Gain – the sliders can be used to set the gain for each input, this is shown as a level relative to maximum gain (0dB) and provides an adjustment range of 40dB at 1dB intervals.
  • When AGC is enabled the input gain control will only have an impact at -30 and -20dB thresholds, as the AGC will take control of the fine gain.

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. 

• Source 1 – for each of the two streams this allows selection of whether the audio source will be taken from Input 1 Only, Input 2 Only, both inputs as a Mono Sum, both inputs treated as a Stereo Pair or the input Disabled.
  • Setting a stream input to Stereo Pair will automatically set the Radio Output to Stereo.
  • If either stream source is set as a stereo pair, the input modes, phantom power and input gain settings will be mirrored automatically between the two inputs and only a single set of input controls is shown.
  • You cannot route Input 1 Only to Stream 2, or vice versa. Input 2 only to stream 1.
• AGC – allows a level of automatic gain control for the stream input. With this enabled the Transmitter will automatically adjust the input gains within a 20dB range to try and optimise the signal level. This is recommended when microphones are in use without any external dynamic control, as it helps avoid differences in volume between different talkers. When enabled an additional meter is shown to display the amount the AGC is reducing from full gain.
  • When AGC is enabled the input gain control will only have an impact at -30 and -20dB thresholds, as the AGC will take control of the fine gain.
• Low Cut – enables a low-cut filter on the given stream input, to help with intelligibility when microphones are directly connected to the Transmitter inputs. Note that the low-cut filter knee frequency varies depending on the sample rate of the stream, see the Transmitter Technical Specifications for more information.
• Mute – mutes the audio input to the stream.
• Source 2 (Network Audio) – allows another Transmitter to be chosen as an input. The drop-down shows a list of all Transmitters which are online and have been enabled for Network Audio as an Output. Choosing a transmitter from the list will configure it as an audio source for the current transmitter to receive the audio stream. Each stream is handled independently so both streams will have to be enabled if the user needs both streams to be available across the network. This is primarily used when setting multiple transmitters as repeaters in larger installations.