Bug 53068 - alternate sample rate doesn't work for simultaneous playback/capture on SoC I2S
Summary: alternate sample rate doesn't work for simultaneous playback/capture on SoC I2S
Status: RESOLVED MOVED
Alias: None
Product: PulseAudio
Classification: Unclassified
Component: alsa (show other bugs)
Version: unspecified
Hardware: Other Linux (All)
: medium major
Assignee: pulseaudio-bugs
QA Contact: pulseaudio-bugs
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-08-02 07:04 UTC by Peter Meerwald
Modified: 2018-07-30 10:21 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments

Description Peter Meerwald 2012-08-02 07:04:39 UTC
Date: Fri, 27 Jul 2012 21:49:22 +0200 (CEST)
From: Peter Meerwald <pmeerw@pmeerw.net>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: pulseaudio-discuss@lists.freedesktop.org
Subject: Re: [pulseaudio-discuss] alternate sample rate

Hello Pierre-Louis,

> > the command I test is a loopback (just playback or capture works fine):
> > pacat -r -d alsa_input.platform-soc-audio.analog-stereo | pacat -p -d
> > alsa_output.platform-soc-audio.analog-stereo

> It could be that your hardware does not let you reconfigure the input and
> output independently? I am afraid I didn't think about this case when I wrote
> the patches, but if you have a synchronous 4-pin I2S on our SOC without
> sample-rate conversion support the frequency needs to be updated for capture
> and playback, not one after the other. Can you provide more details on your
> hardware?

hardware is the internal audio codec on a beagleboard-xm; so yes, 4-pin 
I2S

your statement that the capture and playback sampling rate should be 
changed simultaneously makes a lot of sense I think :)
Comment 1 GitLab Migration User 2018-07-30 10:21:35 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/374.


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