2010/4/6 Nicolo' Chieffo <nicolo.chieffo@xxxxxxxxx> > I've already attached my alsa-info.log in my first post. > > > > * alsamixer 0 dB (100%): > Simple mixer control 'Master',0 > Capabilities: pvolume pswitch pswitch-joined penum > Playback channels: Front Left - Front Right > Limits: Playback 0 - 65536 > Mono: > Front Left: Playback 64044 [98%] [on] > Front Right: Playback 64044 [98%] [on] > Most users only care about 0dB point since any software gain is the cause of clipping (distortion) when the volume control provide software gain http://en.wikipedia.org/wiki/Clipping_%28audio%29 In digital signal processing<http://en.wikipedia.org/wiki/Digital_signal_processing>, clipping occurs when the signal is restricted by the range of a chosen representation. For example in a system using 16-bit signed<http://en.wikipedia.org/wiki/Signed-digit_representation>integers, 32767 is the largest positive value that can be represented, and if during processing the amplitude of the signal is doubled, sample<http://en.wikipedia.org/wiki/Sample_%28signal%29>values of 32000 should become 64000, but instead they are truncated to the maximum, 32767. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
