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http://opencast.jira.com/browse/MH-7600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=26266#comment-26266
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Stephen Marquard commented on MH-7600:
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With this configuration:
capture.device.Audio.type=ALSASRC
capture.device.Audio.flavor=presenter/source
capture.device.Audio.outputfile=audio.flac
capture.device.Audio.src=hw:1
capture.device.Audio.codec=flacenc
it successfully captures flac audio at 32 KHz sampling rate (stereo).
Ideally I would probably want it saved as 44.1 KHz mono, but the above is OK
for now.
I don't have the right JIRA permissions to be able to resolve this issue, but
am happy if someone else does so.
> Support lossless audio codec for audio capture
> ----------------------------------------------
>
> Key: MH-7600
> URL: http://opencast.jira.com/browse/MH-7600
> Project: Matterhorn Project
> Issue Type: Community Feature Request
> Components: Capture (Devices and Software)
> Affects Versions: 1.1
> Reporter: Stephen Marquard
>
> Capture Agents should have the ability to save captured audio in a lossless
> format, e.g. FLAC, in preference to the lossy mp2 format.
> Lossless audio may be important for downstream applications such as noise
> removeal and speech recognition, which may be negatively impacted by lossy
> formats.
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