[pulseaudio-discuss] PulseAudio sample type conversion and quality

Oscar Eriksson oscar.r.eriksson at gmail.com
Wed Mar 31 03:10:09 PDT 2010


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?
Are noise shaping and dithering involved?

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

Thank you!


Noise Shaping: http://en.wikipedia.org/wiki/Noise_shaping
Dithering: http://en.wikipedia.org/wiki/Dithering#Digital_audio
Replay Gain: http://en.wikipedia.org/wiki/Replay_Gain
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