Niels wrote: > - This is with Kubuntu 9.04. For some reason it ships with ALSA 1.0.18rc3. > Is it worth upgrading, Probably not, AFAIK there haven't have any relevant changes. > and how would I do that, other that wait for an automatic update? Download, compile and install the 1.0.20 alsa-driver package. > - speaker-test says it outputs to "Front left", but it actually outputs to > both left and right. Doesn't it ever output to "front right"? This looks like a mono mode. What device name and number of channels did you tell speaker-test to use? > - How do I disable dmix and other possible sources of signal degradation > completely? Dmix does not degrade the signal because its design requires it to run with a sample rate and a sample format directly supported by the device. You can disable dmix by telling your application(s) to use another device name instead of "default". > - How do I make sure ALSA doesn't resample or normalize the signal along the > way? Use a device name like "dmix" or "hw". "default" and "plughw" include resampling, if needed. In no case is there any normalization. > - How do I test various sample rates and bit depths? Play a file with the desired properties to the "hw" device. > How do I get ALSA to tell me what the device supports? Have a look into /proc/asound/card???/stream0. HTH Clemens ------------------------------------------------------------------------------ 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
