The AudioTX Multiplex Server software - simple to use, powerful enough to broadcast hundreds of channels...

multicast audio server software, multicast audio over LAN

AudioTX Multiplex Server Software features:

Runs on a standard Windows PC.
Pentium 4 2.0 GHz processor sufficient for real-time compression & broadcast of at least 30 Mono or 20 Stereo channels of audio (MP3 or MP2).
An unlimited number of additional (secondary) servers can be added to increase the number of broadcast audio channels. All channels are made available instantly to all AudioTX Multiplex Receivers.
Uses standard sound cards (including multi-input systems) - we sell cards with up to 96 inputs - see Sound Cards section in Overview: Requirements.
Simply add and remove broadcast audio channels from the user friendly and informative display screen. Channel lists on all Receivers are updated instantly.
Full status information on-screen for every audio channel being broadcast, includes audio level metering, channel name, soundcard in use, audio coding type, number of Receivers tuned in.
Audio can also be played from a wave file on disk instead of using a live sound card source.

Each broadcast channel is simple to set up - just select a name, a stereo or mono sound card source for a live channel (remember you can connect two mono sources to a single stereo input and treat them as separate sources!) or select a file for transmission from the hard drive.

You can then choose from linear (uncompressed audio), MP3 compression (recommended) or MP2 compression. You'll find that a bitrate of 64kbits (mono) or 128kbits (joint stereo) is near-equivalent to good FM broadcast quality for most audio programmes using MP3 compression.

Each audio channel is 'broadcast' using a technique called Multicast - this means you only generate a small, fixed amount of network traffic regardless of how many people are tuned in.