17 Apr
2007
17 Apr
'07
11:14 a.m.
Gregoire Banderet wrote:
Hello,
We are at the design phase of a new embedded product based on a PowerPC
and Linux.
The device should have an audio output and an audio input, if possible
with a HW compression (MP3) and if possible with an USB interface.
Is there such device supported (with a working driver) by Linux?
not that I know of. but if FPGA's are an option it could be built
easily ;)
USB-Audio is a very distinct standard and merging it with raw mp3/ogg
data i/o is IMHO not a good idea!
There are drivers and software for mp3-decoder hard/firm-ware (eg
ipodlinux.org ) - shared/locked memory is an issue on embedded devices,
and USB makes this even worse..!
I think the cheapest solution is to just /connect/ the
mp3-de/encoder/player output to a general purpose dsp & mixer chipset
and have them be two separate [usb] devices..
2c,
robin