The IPAT-22 is a professional-grade, full-duplex IP audio streamer and receiver designed for seamless two-way audio transmission over the Internet. With both microphone and stereo line inputs and a stereo audio output, the IPAT-22 can operate simultaneously as both a streamer and receiver, offering unmatched flexibility for live broadcasting, studio links, and remote audio applications.

It supports Shoutcast and Icecast protocols and features a built-in Icecast-compatible audio server, enabling audio to be sent or received from any compatible system. The IPAT-22 can grab audio directly from a URL and output it, making it ideal for internet radio stations or remote audio monitoring.

Thanks to its built-in signal generator, it can also produce sine and sawtooth waveforms (1 kHz–10 kHz), allowing it to function as an audio testing tool. Additionally, the IPAT-22 can play MP3 files locally stored on the device, and automatically switch to these files during network interruptions—ensuring uninterrupted broadcasting.

This unit is fully compatible with the ONAIR IPAR-18 IP audio receiver for complete end-to-end audio streaming solutions.

Key Features

• Full-duplex streaming and receiving over IP

• Supports Shoutcast and Icecast servers

• Built-in Icecast-compatible audio server for easy streaming and re-streaming

• MP3 playback from internal storage with auto-fallback during internet loss

• Signal generator with sine and sawtooth wave output (1–10 kHz)

• Decodes almost all popular audio streams

• Easily controlled via built-in web interface

• Remote management via TCP/IP or cloud

• WiFi hotspot support for easy access and control

• Supports 3G/4G USB modems and standard Ethernet connections

• Compatible with ONAIR IPAR-18 for seamless system integration

Network & Streaming Protocols

• Supported protocols: HTTP, BRTP, RTP, SIP, Raw UDP, Raw TCP, Icecast, Shoutcast

• Streaming formats: OGG, MP3

• Adjustable bit rate streaming from analog audio inputs

• Average data usage: ~2 GB/day at 192 kbps (44.1 kHz MP3)

Technical Specifications

Power & Connectivity:

• Voltage/Current: 5V / 2A

• Power Consumption: Max 13W

• Input Type: Micro USB

• Ethernet: 10/100 Mbps

• WiFi: Up to 150 Mbps

• 3G/4G USB Modem (USB 2.0) support

Audio Performance:

• Input Voltage: 2.1 Vrms max (4.2 Vrms for balanced input)

• Output Voltage: 2.1 Vrms max

• SNR (Signal-to-Noise Ratio): 103 dB (input), 106 dB (output)

• THD+N (Total Harmonic Distortion + Noise): -84 dB (input), -92 dB (output)

• Frequency Response: 10 Hz – 70 kHz (-3 dB)

• Input Gain: -12 dB to 32 dB adjustable

• Supported Sample Rates: 44.1 to 192 kHz

Typical Applications

• Internet radio broadcasting

• Studio-transmitter links (STLs)

• Remote broadcasting or voice contribution over IP

• Backup audio source in case of internet failure

• Audio-over-IP for public spaces or venues

 IPAT-22 Application:

IPAT-22 Icecast/Shoutcast Usage:

IPAT-22 Streamer/Receiver Usage: