Hans Wilmsers: > I am using embedded linux on ARM processors in another project, and have > been looking for a simple solution for multichannel outputs for a while > (8 or more), although inputs also are interesting. Good. What requirements do have on the outputs, inputs ? > I have implemented a > noisy soundcard based on UCB1400 for my hardware a while ago, and could > do some tests with that. > > I could do parts of: > > 1) testing OSC on ARM/embedded Linux > (Don't know whether I could test netjack - I have no experience with > that) Great! OSC [1] looks interesting, please report back. I think I will play a little with it also, but for a control application. Anyone fluent in NetJACK ? > 2) test sending sound to/from the board > (but restricted to 10mbit/s, at the moment) > > 5) add the preamp part - there are good examples for that in the > datasheets for some differential amplifiers Please go ahead. I can contribute by documenting, I'll put it in "soundcard" in [2]. Which amplifiers would you recommend to choose from ? > Actually, if we go for this together, I'd suggest using a gumstix board > for the tests, or something similar that is completely ready. This would > make it easier to split the project into hardware and software, and it > would enable others to buy off-the-shelf material, or run a > software-only solution. ... Gumstix [3] seems to be a little expensive. If you want a cheep readymade part to start hacking with, you can use AT32NGW100 [4]. It is delivered with linux installed. Regards, /Karl [1] http://opensoundcontrol.org/ [2] git://aspodata.se/openhw.git [3] http://www.gumstix.com/ [4] http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4102 ----------------------------------------------------------------------- Karl Hammar Aspö Data karl@xxxxxxxxxxx Lilla Aspö 148 Networks S-742 94 Östhammar +46 173 140 57 Computers Sweden +46 70 511 97 84 Consulting -----------------------------------------------------------------------
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