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What is the highest and the minimum supported audio file ...
https://stackoverflow.com/questions/61755809/what-is-the-highest-and-the-minimum-supported-audio-file-that-asterisk-supports#:~:text=Asterisk%20support%20only%20one%20format%20for%20wav%20file,compressed%20with%20GSM%20codec%20%28should%20be%20capital%20extension%29.
Audio Support - Asterisk
https://wiki.asterisk.org/wiki/display/AST/Asterisk+Audio+and+Video+Capabilities
Audio Support A variety of audio capabilities are supported by Asterisk. Speex Support Asterisk supports 8, 16, and 32kHz Speex. Use of the 32kHz Speex mode is, like the other modes, controlled in the respective channel driver's configuration file, e.g. chan_sip's sip.conf or PJSIP's pjsip.conf. Signed Linear PCM
Asterisk 10 Codecs and Audio Formats - Asterisk Project ...
https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats
Expanded Signed Linear Support. Versions of Asterisk prior to 10 supported 16-bit Signed Linear sampled at 8kHz and at 16kHz (versions 1.6.0 - 1.8). New to Asterisk 10 is support for a much wider range of sampling rates. Asterisk can resample between any of these sampling rates and can read/write raw 16-bit signed linear audio files from/to disk.
What is the highest and the minimum supported audio …
https://stackoverflow.com/questions/61755809/what-is-the-highest-and-the-minimum-supported-audio-file-that-asterisk-supports
Asterisk support only one format for wav file. Audio PCM uncompressed 16bit 8khz mono (1 channel) Asterisk support compressed wav format WAV, same as above, but compressed with GSM codec (should be capital extension). Any other wav format will not be played. Asterisk is PBX, not media center.
What wav audio file formats are supported by Asterisk MOH ...
https://community.asterisk.org/t/what-wav-audio-file-formats-are-supported-by-asterisk-moh/31792
Asterisk can handle MOH files in most of the codec formats, however, I believe the only formats supported with a WAV (RIFF) wrapper are 8 bit, mono, signed linear, 8kHz, and standard rate GSM. For GSM, I believe you have to capitalise the .WAV (and not for signed linear).
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