Audio sream to active speakers

[Joee]

Hi all,

as a student for electronics I'm trying to build a small amlpifier kit to make active speakers from passive ones. When talking with some friends they had the idea of sending the audio over LAN/WLAN to the speaker and manage volume and equalizer for each connected speaker on the managing PC.

- The amplifier kit should be something like the b&O ICEpower 250ASX2 but with built-in equalizer/crossover wich should be digitally adjustable.
- As I'm familiar with Atmel µCs I would use a AVR32 for the streaming client -> http://www.atmel.com/products/avr32/aud ... 3_decoding

I could do the hardware but I need someone to do the software for streaming/sending the audio and managing the speakers (and to tell me how streaming works ).
The result will be an hopefully low-cost amplifier with wlan to fit on the back of old speakers, managed by the PC/Handheld/SetTopBox or whatever system.

Who wants to help?

Johannes.

[palettentreter]

have you looked at jack and pulseaudio? Dunno what your µC can do, but if it can run linux, you don't have to bother much with the software. It's pretty much all there and ready to use.

edit: I see atmel want to stream the mp3 and decode it in the µC. That's not what pulseaudio and jack do. They send the raw audio data. Streaming the mp3 will of course ease your data communication issues, but it limits the speaker to playing certain formats, whereas raw audio data can come from anything that supports pulseaudio or jack (i.e. all posix and windows platforms).