Asterisk Native Audio Format | Audio-Digital.net

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Recording Audio for Asterisk | Redial

http://www.itp-redial.com/class/weekly-notes/week2-notes/recording-audio-for-asterisk#:~:text=The%20audio%20standard%20for%20most%20Voice%20over%20IP,The%20PSTN%20will%20only%20accept%20ULAW%20or%20G729.

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Asterisk 10 Codecs and Audio Formats - Asterisk Project ...

https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats

Asterisk can resample between any of these sampling rates and can read/write raw 16-bit signed linear audio files from/to disk. The complete list of supported sampling rates and file format extensions is: Asterisk 10 removes the format_sln16 file format in favor of expanded support in the main format_sln file format for all sampling rates.

Asterisk Audio and Video Capabilities - Asterisk Project ...

https://wiki.asterisk.org/wiki/display/AST/Asterisk+Audio+and+Video+Capabilities

Asterisk File format. Icon. Users can create 16-bit Signed Linear files of varying sampling rates from WAV files using the sox command-line audio utility. In this example, an input WAV file has been converted to Signed Linear at a depth of 16-bits and at a rate of 32kHz.

Asterisk Sound Files 101! ⋆ Sangoma

https://www.sangoma.com/articles/Asterisk-sound-files-101/

RM: While .wav for mat files can contain data at a variety of sampling rates and bit depths, Asterisk can read only two kinds of these files: Microsoft WAV format at 8000 hz signed linear (with a lowercase .wav extension) or WAV-GSM, also called wav49, with an …

2718.us blog - Converting to Asterisk-Native SLN Audio ...

http://2718.us/blog/2008/07/21/converting-to-asterisk-native-sln-audio-with-ffmpeg/

Here’s the command to convert just about any audio (anything ffmpeg can handle) to the appropriate format for Asterisk music-on-hold: ffmpeg -i "[input file]" -ar 8000 -ac 1 -acodec pcm_s16le -f s16le "[output file].sln"

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