From: Clemens Ladisch <clemens@ladisch.de>
To: James Courtier-Dutton <james.dutton@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: Mixer volume/decibel mapping
Date: Tue, 25 May 2010 10:21:58 +0200 [thread overview]
Message-ID: <4BFB88A6.8040701@ladisch.de> (raw)
In-Reply-To: <AANLkTikEUdCu4UvSRONmiRXdEWsOo-0882JyvWWuxn4I@mail.gmail.com>
James Courtier-Dutton wrote:
> On 21 May 2010 07:35, Clemens Ladisch <clemens@ladisch.de> wrote:
>> James Courtier-Dutton wrote:
>>> For the cards that do have this 32bit linear value, a simple lookup
>>> table is used in the kernel code to convert it to 256 step values.
>>
>> Which driver is this? It should be changed to use the full range.
>
> All creative and emu cards with a DSP.
> They use a lookup table in the driver.
Okay, with the latest driver, try:
modprobe snd-emu10k1 high_res_gpr_volume=1
I did not yet enable this by default because alsactl has a bug when
restoring mixer values saved by the old driver, and alsamixer currently
thinks it is a good idea to let you step through two billion values.
Regards,
Clemens
next prev parent reply other threads:[~2010-05-25 8:22 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-19 16:34 Mixer volume/decibel mapping Sebastian H.
2010-05-20 7:34 ` Clemens Ladisch
2010-05-20 8:01 ` James Courtier-Dutton
2010-05-20 8:53 ` Raymond Yau
2010-05-20 9:41 ` Sebastian H.
2010-05-20 16:13 ` James Courtier-Dutton
2010-05-21 0:35 ` Raymond Yau
2010-05-21 1:30 ` Raymond Yau
2010-05-21 8:18 ` Sebastian H.
2010-06-07 3:37 ` Raymond Yau
2010-06-07 9:19 ` Sebastian H.
2010-06-08 1:03 ` Raymond Yau
2010-06-08 6:02 ` Sebastian Holtermann
2010-06-08 15:31 ` Raymond Yau
2010-06-09 10:26 ` Sebastian H.
2010-06-08 6:08 ` Sebastian H.
2010-06-09 5:39 ` Raymond Yau
2010-06-09 7:34 ` Sebastian H.
2010-06-10 0:08 ` Raymond Yau
2010-06-09 5:55 ` Raymond Yau
2010-06-08 2:23 ` Raymond Yau
2010-05-21 6:35 ` Clemens Ladisch
2010-05-21 6:51 ` Peter Ujfalusi
2010-05-21 9:56 ` Clemens Ladisch
2010-05-24 2:52 ` Raymond Yau
2010-05-25 8:38 ` Clemens Ladisch
2010-05-25 8:43 ` James Courtier-Dutton
2010-05-25 8:49 ` Clemens Ladisch
2010-05-25 23:24 ` Raymond Yau
2010-05-27 13:32 ` Colin Guthrie
2010-05-29 3:54 ` Raymond Yau
2010-05-29 1:57 ` Raymond Yau
2010-05-29 18:46 ` Colin Guthrie
2010-06-04 23:46 ` Raymond Yau
[not found] ` <AANLkTik7mD1DAVWkOwM7sNu0EfgGApvzX9WRXWBOO4PI@mail.gmail.com>
2010-05-25 8:45 ` Clemens Ladisch
2010-05-25 13:51 ` Raymond Yau
2010-05-25 14:36 ` Clemens Ladisch
2010-05-25 23:00 ` Raymond Yau
2010-05-27 0:20 ` Raymond Yau
2010-05-28 13:04 ` Raymond Yau
2010-05-28 14:10 ` Clemens Ladisch
2010-05-29 1:31 ` Raymond Yau
2010-05-21 13:16 ` James Courtier-Dutton
2010-05-25 8:21 ` Clemens Ladisch [this message]
2010-06-09 6:19 ` Raymond Yau
2010-05-22 9:24 ` Raymond Yau
2010-05-20 9:20 ` Sebastian H.
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