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comparison doc/Utils-overview @ 238:de1b52304d26

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doc/Utils-overview: add new PCM utilities
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 08 May 2023 05:21:12 +0000
parents f4f68c652e98
children 3aeb33d835ad
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237:e4a4bf11f37c 238:de1b52304d26
52 passes it through our Rx DTX preprocessor (libgsmfrp), 52 passes it through our Rx DTX preprocessor (libgsmfrp),
53 and writes the preprocessor output to another .gsm file. 53 and writes the preprocessor output to another .gsm file.
54 54
55 gsmrec-dump See Binary-file-format article. 55 gsmrec-dump See Binary-file-format article.
56 56
57 pcm16-check13 This program reads a 16-bit linear PCM recording file
58 (raw BE by default, or raw LE with -l option) and checks
59 if the 3 least significant bits of every sample are all
60 zeros. All linear PCM samples consumed or generated by
61 GSM codecs are only 13 bits wide, left-justified in
62 16-bit words, and so is output from G.711 A-law decoding
63 - thus it is useful to be able to check if a given file
64 in 16-bit PCM format is purely 13-bit or not.
65
57 pcm16-raw2wav See PCM-file-formats article. 66 pcm16-raw2wav See PCM-file-formats article.
58 pcm16-wav2raw 67 pcm16-wav2raw
68
69 pcm16-to-alaw See PCM8-conversions article.
70 pcm16-to-ulaw
71 pcm8-to-pcm16