On 21-04-08 15:32, Takashi Iwai wrote: > At Sun, 20 Apr 2008 02:00:51 +0200, > Lennart Poettering wrote: >> My understanding is that the dB values of this USB device are relative >> to its maximum gain, and as such consistent in itself. Does the USB >> spec define the reference level for the dB values? > > Not clearly. IIRC, it's against the line level... The 1.0 spec calls 0 dB line level indeed and (at least in the context of the dynamic range compressor, section 3.5.6.6) suggests that it's "usually 15-20 dB below the maximum level". Rene. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
