Thank you for the clarification. Oscar On Wed, Mar 31, 2010 at 12:39 PM, Lennart Poettering <lennart at poettering.net > wrote: > On Wed, 31.03.10 12:10, Oscar Eriksson (oscar.r.eriksson at gmail.com) wrote: > > > Hi, > > > > I'm curious about how the conversion from 32-bit float PCM to 16-bit > fixed > > PCM is done in PulseAudio. Or is it Alsa that takes care of this > > conversion? > > PA does. > > > Are noise shaping and dithering involved? > > No and no. I thought about adding at least dithering, but uh, I don't > think this is really a priority for desktop audio. Dithering is primarily > relevant for audio production which PA is unsuitable for anyway, and > the operation is too CPU intensive to do it nonetheless. > > (ALSA doesn't do thopse things either in their converters) > > > Also, how do I adjust the volume for optimum playback quality when > playing > > music? (I want to use the the full dynamic range) Should I use maximum > ALSA > > and PulseAudio volume when playing songs that have been normalized > (Replay > > Gain)? > > For the sliders PA exposes 0dB is at maximum hardware volume, and the > "base volume" is where the hardware 0dB is, for whatever that means. > > Hence normally you want to keep the volume below the base volume, at > least when the dB labelling of the hardware sliders are correct. > > http://pulseaudio.org/wiki/WritingVolumeControlUIs#BaseVolumes > > Lennart > > -- > Lennart Poettering Red Hat, Inc. > lennart [at] poettering [dot] net > http://0pointer.net/lennart/ GnuPG 0x1A015CC4 > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20100331/25459b94/attachment.htm>
