On 2010-10-21 06:36, Raymond Yau wrote: > 2010/10/4 David Henningsson<david.henningsson@xxxxxxxxxxxxx> > >> >> >> Exactly, this is a test tool that checks whether the mixer control names >> and dB information live up to PulseAudio's expectations. That's the >> tool's purpose. >> >> What's PulseAudio' s expectation ? > > PA 's developer seem expect max_dB of all HDA codec are 0dB > > Your alsamixertest program does not test any dB range above 0dB That's correct, I don't really know how to deal with that, and I'm not sure how PA deals with that either. I assume it goes above 0 dB on one of the volume controls when a user wants it to. But from alsamixertest's perspective, the question is: if you do, should detected distortion cause an error or not? Also alsamixertest could be expanded to trust playback and test recording, and then I assume this question will be even more important as most mic boost controls go from 0 dB to +20 dB or so (if they even provide dB information). -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
