From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Randolph Chung <rchung42@gmail.com>
Cc: alsa-devel@alsa-project.org,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Eric Bénard" <eric@eukrea.com>
Subject: Re: Problem with MX27 ASoC audio
Date: Wed, 18 Aug 2010 09:41:38 +0100 [thread overview]
Message-ID: <20100818084137.GA26804@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <AANLkTimSMLLcOVzxocQV_nQ57wwxKLUGQUt7wn2wPa2p@mail.gmail.com>
On Wed, Aug 18, 2010 at 03:53:16PM +0800, Randolph Chung wrote:
> > Nonetheless, the system still doesn't behave properly when record and
> > playback are happening at the same time. Here's a simple test:
> Actually the problem is due to "mismatched" recording and playback
> rates. My test was recording at 8kHz and playing back at 48kHz. The
> codec driver only supports playback rate = capture rate. When the
> playback starts the codec starts clocking at 48kHz which causes the
> xruns.
> Will see if the codec driver (tlv320aic3x) can be fixed up.
If the CODEC has only a single LRCLK pin then it should be setting the
symmetric_rates flag in its DAI. The core will then take care of the
symmetry requirements for it.
next prev parent reply other threads:[~2010-08-18 8:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-12 10:15 Problem with MX27 ASoC audio Randolph Chung
2010-08-12 12:56 ` Sascha Hauer
2010-08-12 14:59 ` Randolph Chung
2010-08-12 15:01 ` Mark Brown
2010-08-16 9:27 ` Randolph Chung
2010-08-16 9:36 ` Eric Bénard
2010-08-18 3:44 ` Randolph Chung
2010-08-18 7:53 ` Randolph Chung
2010-08-18 8:41 ` Mark Brown [this message]
2010-08-18 8:58 ` Randolph Chung
2010-08-18 9:02 ` Mark Brown
2013-07-11 12:24 ` Dhiv
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