On Fri, May 24, 2002 at 05:47:07PM +1200, Eliot Blennerhassett wrote: > Hello, > > I work for AudioScience (www.audioscience.com) > > We make excellent (how could I say otherwise) audio cards. ... > I'd like some idea how hard it would be to write an ALSA driver either as a > compatibility layer on top of our existing driver, or from the ground up. I > realise that this is rather a broad question, so please consider this an > invitation to enter discussion, rather than a request for you to go off and do > a lot of work for me. >
You should be on the alsa-dev mailing list. Writing a driver is probably about as easy as giving the card and a copy of the Windows driver source to the right person. Otherwise, read the existing drivers for examples. > Oh - what do you think of the cards' feature set? > > > Some distinctive things about our cards (not all have all features) > - they have on board DSP. Code is downloaded by the driver. Common. > - they have a lot of on board buffer memory (hundreds of K at least) Hopefully that doesn't hurt latency. > - on board DSP handles decompression/compression Why? Which formats? > - mixing Common on consumer cards. > - samplerate conversion or multiple outputs at different rates Interesting. Is there an application for this? > - analog and digital audio I/O, balanced drivers I don't know what balanced drivers are. Regards, Mark
