On Mon, 11 May 2009, Matt Garman wrote: > On Fri, Apr 17, 2009 at 10:14:16AM +0200, Clemens Ladisch wrote: >> Matt Garman wrote: >>> Is there a way to query alsa to see what sample rates and >>> formats the sound hardware natively supports? >> >> Try the attached program. > > I get the following output when I run this for my M-Audio Audiophile > 24/96. No surprises: what led me to asking this question was my > observation that I couldn't play CD audio (S16_LE) using hw, and > have to use dmix or plughw. > > Device: hw (type: HW) > Access types: MMAP_INTERLEAVED RW_INTERLEAVED > Formats: S32_LE > Channels: 10 > Sample rates: 8000 11025 16000 22050 32000 44100 48000 64000 88200 > 96000 > Interrupt interval: 20-409500 us > Buffer size: 20-819125 us > > Now, before Clemens was nice enough to post that program, I posed > the same question on the M-Audio.com forums: > > http://forums.m-audio.com/showthread.php?p=38192 > > The response seems to suggest that the card should support more > formats. Or perhaps I'm misreading the responses (or the tech that > answered the question doesn't really understand my question). > > Thoughts? The hw supports the 32-bit format natively only. All other formats must be converted to this format in applications or alsa-lib (using plughw / plug / linear plugins). Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
