From: shariff <shariffsinbox@gmail.com>
To: alsa-devel@alsa-project.org
Subject: Reg: Audio recording with twl4030 codec
Date: Fri, 22 Jan 2010 15:27:23 +0530 [thread overview]
Message-ID: <1cbe56071001220157u5133ae91mf89dabb2f4da8fdb@mail.gmail.com> (raw)
Hi all,
I am working with OMAP3 based custom board that has twl4030 codec &
using linux-2.6.29 kernel from opensource.
I have some queries regarding Audio recording.
Audio codec is connected to twl4030 as bellow
TWL4030
|--------------------|
| |------ MAINMIC
McBSP2 ------ |i2s/tdm |
| ___________|
--> One Analog MIC is connected to Main Mic and I am using Audio path
not the Voice path.
After selecting Main Mic through amixer control.
and recording audio using "arecord -c 1 -r 8000 -f S16_LE -t wav
-d 20 record-file.wav"
--> Here record is successful but with lot of noise.
1) Can we record Mono(1 channel) through I2S from TWL4030 codec?
2) To record stereo(2 channels), do we need two Mic's ? (i.e do I
need Sub Mic also).
Regards,
Shariff
next reply other threads:[~2010-01-22 9:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 9:57 shariff [this message]
2010-01-22 12:41 ` Reg: Audio recording with twl4030 codec Peter Ujfalusi
[not found] ` <1cbe56071001220459n511c41d7ya117ca8b19c11ae5@mail.gmail.com>
[not found] ` <1cbe56071001242332r4fcf5a3dyd509750e39ca9377@mail.gmail.com>
2010-01-25 8:14 ` Peter Ujfalusi
2010-01-25 8:22 ` shariff
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