[alsa-devel] Bug in alsa-lib or alsamixer and amixer

Colin Guthrie gmane at colin.guthr.ie
Sat Jun 19 10:13:45 CEST 2010

'Twas brillig, and Raymond Yau at 19/06/10 01:39 did gyre and gimble:
> To simpify the implementation of the slider ,  a new "PA dB scale" is used
> by shift those +12dB(base volume) to 0dB and insist that every sound card 's
> minimum_dB is -inf dB ,

No. -inf dB is -inf dB. If the card does not go down to -inf dB, PA will
extend the range in software. If a card only goes down to -12dB minimum
the range -12dB -> -infdB will be done in software. Lennart explained
this very clearly to you already.

> This mean that all sound cards will now have same "PA  dB range" , the
> volume slider does not need resize or rescaling any more. This is why they
> prefer to use percentage to make you believe their calculation of dB is
> correct

WTF? "prefer to use percentage"? What the hell are you talking about?



Colin Guthrie

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