Home Audio over IP PYKO-OUT – Stereo IP Audio decoder
  • Overview
  • Specifications

PYKO-OUT – Stereo IP Audio decoder

Key Workflow: audio over IP decoder for entry range studio to transmitter links (STL), as well as paging,  background music, and live announcement applications

At a glance

PYKO-out is a small form factor rack-mountable stereo IP audio decoder. It features two balanced analog mono outputs and a USB port for storing local playlists on a USB memory stick. It decodes standard RTP streams in G711, G722, PCM, MPEG L3, or AAC-LC and HE AAC audio formats and allows for auxiliary data tunneling (serial data, and 4 GPI statuses). PYKO-out also  offers three decoding priorities with automatic failover, and can be remotely  controlled through ASCII commands sent through TCP.

  • Stereo IP audio decoder
  • Decoding of standard RTP streams and WEB radio streams (Icecast/Shoutcast)
  • USB port for storing local playlists on a USB memory stick for local backup
  • Three decoding priorities with automatic failover
  • Control and monitoring through WEB pages, ASCII commands over TCP, and monitoring via SNMP

Key features

  • Two balanced analog outputs (+18 dBu)
  • One 10/100 Mbits/s Ethernet RJ-45 port
  • Supports the following audio formats:  G711, G722, PCM, MPEG L3,  and AAC-LC and HE AAC  at 32 kHz
  • Standard RTP streaming, or Icecast/Shoutcast
  • Auxiliary data tunneling (serial data through RS232 port, 4 GPIOs)
  • Unicast, multicast, multi-unicast and multi-multicast (up to six destinations)
  • Configuration and monitoring from WEB pages, or through ASCII commands via TCP
  • Possibility to start/stop the stream via GPIs
  • Front panel headphones mini-jack
  • External power supply



  • Size 140mm x 41mm x 145mm (3 in a 1U rack)
  • Weight 434 g 477 g
  • Operating temperature / humidity: 0°C to 55°C  / 0% to 70% relative humidity, non condensing
  • Power supply : 24VDC +/-20%


  • Analog line outputs: 1 stereo
  • Maximum output level / impedance: +4 dBu / +18 dBu / < 100 ohms
  • Frequency response : 0/-2 dB <20-20000Hz>
  • THD+Noise: < – 84 dB @ -2dBFS <20-20000Hz>
  • SNR: <- 98 dB <20-20000Hz>
  • Headphone out: 1 (3.5 mm Jack)


  • Ethernet Port: 10/100 Mbit Ethernet (RJ45)
  • RS232: subD 9pin male
  • USB: external and internal USB1.1 interface for memory key (FAT16*)
  • GPIO:
    – 4 GPO , 4 independant contact relay,
    – 4 GPI , TTL input 5v/5mA overvoltage and EMC protections

Software, format, protocols

  • IP Stream format: RTP, shoutcast, icecast
  • Audio formats:
    – MP3 (variable bit rates up to 320 kBit)
    – AAC LC, HE-AACv1 (limited to 32 kHz), HE AACv2 (limited to 32 kHz)
    – G.711(µLaw/aLaw at 8 kHz)
    – PCM (16bit at 8 to 48 kHz)


  • html pages via built-in web server
  • TCP/UDP ASCII commands to control the device through the network
  • Audio-ManagerVu middleware

Networks protocols

  • HTTP, TCP/UDP commands, RTP, DHCP, DNS, IGMP


  • Low STL entry price, while delivering high audio quality
  • Easy installation and configuration
  • Easy integration into a control application thanks to the ASCII commands protocol