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soxr

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Hans Dijkema
2026-06-10 01:42:08 +02:00
parent 4f95e57a96
commit 5c719ea4a0
10 changed files with 681 additions and 72 deletions
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scrbl/audio-encoder.scrbl
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@@ -166,9 +166,10 @@ The first backend version supports mono and stereo input.
The FLAC backend uses the @tt{libFLAC} stream encoder. It writes interleaved
integer PCM samples through the FLAC encoder API. When the requested output
format differs from the decoded input format, @racketmodname[racket-audio/private/pcm-converter]
uses the existing FFmpeg @tt{swresample} layer from
@racketmodname[racket-audio/ffmpeg-definitions] to perform PCM normalisation.
sample rate differs from the decoded input format, @racketmodname[racket-audio/private/pcm-converter]
uses @racketmodname[racket-audio/resampler], backed by @tt{libsoxr}, to perform
PCM sample-rate conversion. Channel-count conversion is not handled by this
SoXR path; keep the source channel count for encoder-side conversion.
The following settings are recognised: