From: Colin Guthrie <gmane@colin.guthr.ie>
To: alsa-devel@alsa-project.org
Subject: Re: wrong decibel data?
Date: Thu, 10 Jun 2010 17:11:21 +0100 [thread overview]
Message-ID: <hur2pt$uaa$1@dough.gmane.org> (raw)
In-Reply-To: <AANLkTikqAJFo7kIjeJ2O1ulg9GUPZniF1NQNu6PAv0cH@mail.gmail.com>
'Twas brillig, and Raymond Yau at 10/06/10 04:16 did gyre and gimble:
> Can you explain how PA handle the volume controls of ac97 codec ?
>
> PCM -34.5dB to +*12* dB
> Master -46.5dB to 0dB
>
> The total dB range (PCM + MASTER) is -81dB to +*12*dB
>
>
> Most user concern about recording without distrotion. (i.e. best result when
> Capture Volume at 0dB , PCM and Master Volume at 0dB ) and they need where
> are 0dB points
I'm not 100% sure how this is handled, but I know it's not ignored.
You'll have to ask Lennart directly or dig in the code to see for sure.
Col
--
Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/
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next prev parent reply other threads:[~2010-06-10 16:11 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-02 18:21 wrong decibel data? Nicolo' Chieffo
2010-04-02 20:25 ` Nicolo' Chieffo
2010-04-03 10:09 ` Colin Guthrie
2010-04-03 10:48 ` Nicolo' Chieffo
2010-04-05 0:15 ` Raymond Yau
2010-04-05 8:29 ` Stereo Support in APLAY Reddy, MR Swami
2010-04-08 6:47 ` Clemens Ladisch
2010-04-04 0:09 ` wrong decibel data? Raymond Yau
2010-04-04 1:31 ` Raymond Yau
2010-04-06 0:07 ` Raymond Yau
2010-04-08 1:35 ` Raymond Yau
2010-04-16 13:48 ` Raymond Yau
2010-04-17 9:31 ` Colin Guthrie
2010-04-21 2:32 ` Raymond Yau
2010-04-21 8:06 ` Colin Guthrie
2010-04-22 1:16 ` Raymond Yau
2010-05-27 13:30 ` Colin Guthrie
2010-05-27 13:48 ` Clemens Ladisch
2010-05-27 14:43 ` Colin Guthrie
2010-05-27 17:21 ` Colin Guthrie
2010-06-06 0:12 ` Raymond Yau
2010-06-07 9:03 ` Colin Guthrie
2010-06-08 0:47 ` Raymond Yau
2010-06-08 15:30 ` Colin Guthrie
2010-06-10 3:16 ` Raymond Yau
2010-06-10 16:11 ` Colin Guthrie [this message]
2010-06-13 13:53 ` Lennart Poettering
2010-06-14 0:25 ` Raymond Yau
2010-06-14 8:33 ` Colin Guthrie
2010-06-14 8:38 ` Raymond Yau
2010-06-14 8:45 ` Raymond Yau
2010-06-14 10:17 ` Colin Guthrie
2010-06-14 18:38 ` Lennart Poettering
2010-06-14 8:56 ` James Courtier-Dutton
2010-06-14 9:54 ` Raymond Yau
2010-06-14 10:07 ` James Courtier-Dutton
2010-06-15 6:57 ` Raymond Yau
2010-06-14 18:46 ` Lennart Poettering
2010-06-14 10:22 ` Colin Guthrie
2010-06-14 10:46 ` James Courtier-Dutton
2010-06-14 11:03 ` Colin Guthrie
2010-06-14 11:29 ` Alan Horstmann
2010-06-14 12:36 ` Raymond Yau
2010-06-14 14:17 ` Colin Guthrie
2010-06-14 15:27 ` James Courtier-Dutton
2010-06-14 15:44 ` Colin Guthrie
2010-06-14 16:09 ` Mark Brown
2010-06-15 0:11 ` Raymond Yau
2010-06-22 2:31 ` Raymond Yau
2010-06-22 9:15 ` Colin Guthrie
2010-06-22 15:29 ` Raymond Yau
2010-06-22 17:05 ` Colin Guthrie
2010-06-23 1:15 ` Raymond Yau
2010-06-23 9:12 ` Colin Guthrie
2010-06-28 1:47 ` Raymond Yau
2010-06-28 8:18 ` Colin Guthrie
2010-07-01 15:03 ` Raymond Yau
2010-06-14 18:54 ` Lennart Poettering
2010-06-14 18:49 ` Lennart Poettering
2010-06-14 23:43 ` Raymond Yau
2010-06-15 16:10 ` Colin Guthrie
2010-06-14 18:41 ` Lennart Poettering
2010-06-08 4:01 ` Raymond Yau
2010-06-08 15:40 ` Colin Guthrie
2010-05-28 2:37 ` Raymond Yau
2010-05-28 2:04 ` Raymond Yau
2010-04-06 1:46 ` Raymond Yau
2010-04-06 8:01 ` Nicolo' Chieffo
2010-04-07 0:34 ` Raymond Yau
2010-04-07 8:17 ` Nicolo' Chieffo
2010-04-07 12:17 ` Nicolo' Chieffo
2010-04-07 23:38 ` Raymond Yau
2010-04-08 2:05 ` Raymond Yau
2010-04-08 12:42 ` Nicolo' Chieffo
2010-04-08 23:11 ` Raymond Yau
2010-04-09 7:30 ` Nicolo' Chieffo
2010-04-09 11:37 ` Raymond Yau
2010-04-09 11:40 ` Raymond Yau
2010-04-09 12:27 ` Nicolo' Chieffo
2010-06-24 9:53 ` Raymond Yau
2010-04-09 13:49 ` Raymond Yau
2010-04-09 13:59 ` Nicolo' Chieffo
2010-04-09 18:35 ` Nicolo' Chieffo
2010-04-10 0:27 ` Raymond Yau
2010-04-10 9:27 ` Raymond Yau
2010-04-10 9:41 ` Nicolo' Chieffo
2010-04-10 23:32 ` Raymond Yau
2010-04-11 0:02 ` Raymond Yau
2010-04-11 9:00 ` Nicolo' Chieffo
2010-04-15 3:38 ` Raymond Yau
2010-04-14 1:39 ` Raymond Yau
[not found] ` <4BBF5F81.1010205@yellowcouch.org>
2010-04-09 23:32 ` Raymond Yau
2010-04-10 6:56 ` Werner Van Belle
2010-04-10 7:23 ` Raymond Yau
2010-04-10 4:25 ` Raymond Yau
2010-04-10 6:59 ` Werner Van Belle
2010-04-10 0:11 ` Raymond Yau
2010-04-17 0:40 ` Raymond Yau
2010-04-09 0:49 ` Raymond Yau
2010-04-09 1:35 ` Raymond Yau
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