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From: Colin Guthrie <gmane@colin.guthr.ie>
To: alsa-devel@alsa-project.org
Subject: Re: Bug in alsa-lib or alsamixer and amixer
Date: Sat, 19 Jun 2010 09:13:45 +0100	[thread overview]
Message-ID: <hvhu61$cov$3@dough.gmane.org> (raw)
In-Reply-To: <AANLkTinZFz6NyImuanu7guAg1fiP2hynu55NqeN4apyH@mail.gmail.com>

'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?

Col


-- 

Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/

Day Job:
  Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
  Mandriva Linux Contributor [http://www.mandriva.com/]
  PulseAudio Hacker [http://www.pulseaudio.org/]
  Trac Hacker [http://trac.edgewall.org/]

      reply	other threads:[~2010-06-19  8:15 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-15 22:29 Bug in alsa-lib or alsamixer and amixer Raymond Yau
2010-06-15 23:07 ` Colin Guthrie
2010-06-16  0:41   ` Raymond Yau
2010-06-16  6:33   ` Raymond Yau
2010-06-16 21:47     ` Colin Guthrie
2010-06-16 22:09       ` Raymond Yau
2010-06-16 22:36         ` Colin Guthrie
2010-06-16 23:34           ` Raymond Yau
2010-06-17  7:15             ` James Courtier-Dutton
2010-06-19  0:39               ` Raymond Yau
2010-06-19  8:13                 ` Colin Guthrie [this message]

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