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http://dev.sourcefabric.org/browse/LS-611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=26391#action_26391
]
Samuel Mimram commented on LS-611:
----------------------------------
The problem lies in tools/rutils.ml in the function create_from_wav: the
resampling is done by the bad quality convert_to_audio functions whereas it
should be done by proper converters as everywhere else.
> Bad quality resampling w/ libsamplerate
> ---------------------------------------
>
> Key: LS-611
> URL: http://dev.sourcefabric.org/browse/LS-611
> Project: Liquidsoap
> Issue Type: Bug
> Affects Versions: 1.0
> Reporter: Romain Beauxis
> Priority: Major
>
> From the ML:
> """"
> I use the 'input.external' function, and I realize that the 'resample'
> provide bad quality.
> My input is 32khz type, so resampling has to be done.
>
> input.external(samplerate=32000,"cat /tmp/audio.wav") à bad quality
>
> So I tried with sox resampling and the result is good
>
> input.external(samplerate=44100,"cat /tmp/audio.wav | sox --buffer 640 -c 2
> -r 32000 -b 16 -e signed -t raw - -c 2 -r 44100 -t raw -") à good quality
>
> Is there any parameters into LS resampler to improve its quality and avoid
> the use of sox?
> """
> Use has confirmed he was using libsamplerate converter and has tried all
> available modes.
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