Lennart Poettering wrote: > Getting back to the invalid dB data from the USB cards: the question > is whether the USB descriptor data is badly parsed, and the dB > mismatch hence systematic for USB cards, USB descriptors use units of 1/256th dB, while ALSA uses 1/100th dB. When the level is computed from the minimum plus a multiple of the step size, rounding errors add up considerately. ALSA 1.0.21 (kernel 2.6.32) added a different TLV type that reports the range with the min/max values to minimize those rounding errors. Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
