From: "Xiaoyong Wen" <wen_kernel@163.com>
To: alsa-devel <alsa-devel@alsa-project.org>
Cc: linux-kernel-cn <kernel@vger.linux-kernel.cn>
Subject: Recording sound from microphone isn't good working that playback sound is distortion.
Date: Tue, 31 Jul 2012 15:00:16 +0800 [thread overview]
Message-ID: <201207311500149537558@163.com> (raw)
Hi, alsa-devel
Platform: S3C6410, WM9713G codec with AC'97, Linux kernel 2.6.36. ALSL 1.0.23 lib and utils.
Test process:
1. aplay WAV file is good working
#aplay -D 'hw:0,0' -c 2 /opt/music.wav
2. arecord WAV file from Line in is good working.
#arecord -D 'hw:0,0' -r 48000 -f S16_LE -c 2 | aplay -D 'hw:0,0' -c 2 &
3. Recording sound from microphone isn't good working that playback sound is distortion.
#arecord -D 'hw:0,0' -r 48000 -f S16_LE -c 2 | aplay -D 'hw:0,0' -c 2 &
or
#arecord -d 10 -fdat test2.wav
I hear the sound is very distortion and low.
~~~~~~~~~~~~~~~~~~~~~~~~~~
If I excute "amixer cset numid=9 3; amixer cset numid=7 31; amixer cset numid=87 on; amixer cset numid=6 31,31" command, and then volume is high.
Please help me to fix up this bug, thanks.
Best regards.
Xiaoyong Wen, <wen_kernel@163.com>, 2012-07-31, 14:46:17.
next reply other threads:[~2012-07-31 7:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-31 7:00 Xiaoyong Wen [this message]
2012-08-04 0:10 ` Recording sound from microphone isn't good working that playback sound is distortion Mark Brown
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