On Fri, Jun 18, 2010 at 05:57:46PM -0600, Bearcat M. Şandor wrote: > > That means that you should turn down the power amp gain > > quite a bit. > > This is a low powered 10 watt max amp (class t chip) That doesn't mean its sensitivity is low as well. > The alsamixer volume controls make no difference at all to jkmeter, but adjusting the > volume on mplayer does. Is this the expected behavior? Yes. > I was not sure how to activate K20 or K14 given > jkmeter's interface. See Robin's post. > You mean individual application volume controls as opposed to the sound > card mixer is preferred? If the application's gain control works on floating point samples, yes. The sound card's gain control works on the 24-bit signal. For a gain below 0 dB it reduces the maximum available output as well. For example if you set it to -18 dB (which is 1/8 linear gain), the DAC will never use the upper three bits - you now have a 21-bit system. If the volume is set using a floating point gain control, and the soundcard gain remains at 0 dB you have the full range of the DAC regardless of volume. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
