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Multiprotocol Audio over IP encoder with line level analog input (stereo), serial port, low latency, PCM G.711, G.722 and MP3 encoding

The Instreamer encodes analog audio sources in real time in a configurable format (MP3, PCM, G.711,G.722) and streams via TCP, UDP, Shoutcast, Multicast RTP format to configurable destinations. Used in high quality broadcast applications, surveillance and VoIP markets alike, the Instreamer has proven its simplicity where Audio over IP encoding is required.

Main Features

  • G.711, G.722, PCM linear Encoding
  • MP3 Encoding (low Latency)
  • Shoutcast/Icecast Source capability
  • Audio Level Supervision with SNMP Trap generation
  • IP Streaming via TCP, UDP, RTP, Multicast
  • Line Level Input (Stereo)
  • RS-232 Serial Port
  • Power Supply (micro USB)

Designed in Switzerland and installed in thousands of locations, the Barix Instreamer is the device of choice for Broadcasters, Telco Providers, Entertainment venues and Surveillance projects alike.

Technical Specifications


5V, max. 1A through Mini-USB connector

External power adaptor, 100-240VAC, 5W, included



RJ45, 10/100Mbps auto, Link & Activity LEDs


AutoIP, SonicIP, IPZator to ease address assignment



300..230‘400 Baud asynchronous, 7/8 bit

DSub 9 pin male

serial tunnel, control and metadata input support


Audio Input

RCA connectors, unbalanced, 2 kOhm impedance

Clipping level 5.3 dBu, 4 Vpp

Frequency response (-3dB) 20..20‘000 Hz *

Signal to Noise Ratio 89dB, THD <0.03%

Stereo crosstalk -89dB

Input signal attenuable by software setting (-3..+19.5dB)


Headphone Output

3.5mm jack

volume adjustable via browser

announcement of IP address (SonicIP)

general purpose audio output, depending on used codec

Audio formats

MP3, encoding/decoding up to 192/320kbps

VBR and CBR support

PCM 16bit @8, 16, 22.05, 24, 32, 44.1, 48 kHz

G.711, uLaw, aLaw (sample rates same as PCM)Mechanical

Aluminum case, 225g, separate mounting bracket

available 4.25” x 1.5” x 3.1” (108mm x 38mm x 78.7 mm)


Software Environment

Proprietary multitasking OS

Application firmware packages available from Barix

Development Environment for custom functionality

(ABCL development kit) available free of charge



(calculated according to MIL217F at 25°C) min. 540 000h* depends on used codec, best results @48kHz PCM


VSC Active Adapter



Order number: 2014.0095

19" Rack mount shelf

For up to 4 devices

Order number: 2007.9082

Wall mount bracket

Measure: 116/30/29 mm 45,669/11,811/11,417 inches for Barix devices (108 x 38 x 125 mm) (4.25 x 1.5 x 4.92 inches). Can be used in conjunction with Moxa DK-35A, to enable devices to be DIN rail mounted. Manufactured from a single piece of black colored PC plastic.

Order number: 2006.9072

Cable set Audio



Order number: 2006.9054

Use Cases

Live IP Audio Encoder for Streaming Applications

Source Encoder for IP Audio Distribution Applications

Background Music and Music-on-Hold encoder for VoIP Applications

Shoutcast/Icecast Source Encoder

Low latency IP Audio Encoder for multichannel applications

Confidence Monitoring and Vox Switch for Broadcast Applications

Contact us about the Instreamer

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Ordering Numbers

  • 2012.9121

    Instreamer EU Package

  • 2012.9123

    Instreamer US Package

  • 2012.9124

    Instreamer UK Package

  • 2012.9125

    Instreamer noPSU Package


    Device and power supply, individual packaging in cardboard box with sleeve. This device replaces the Instreamer 100 product which has been produced until 07/2012

Documents & Downloads



Instreamer Firmware V4.01
Instreamer Firmware V4.02
Instreamer Firmware V4.03
Instreamer Firmware V4.04
Instreamer Firmware V4.05

Quick Install Guides

Product Change Notifications

Product Sheets