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How To Convert Audio Files for Use With Asterisk
http://www.verterion.com/asterisk/convert-audio-files-use-asterisk/#:~:text=For%20Asterisk-based%20systems%2C%20this%20depends%20on%20the%20CODEC,must%20be%20an%208kHz%2C%20mono%2C%2016-bit%20audio%20file.
[Asterisk-Users] Audio Files, Filtering, and Formats for ...
https://asterisk-users.digium.narkive.com/E7jpddtV/audio-files-filtering-and-formats-for-asterisk
Either way, your best bet is to have the system use WAV files but also make available GSM and ulaw versions of the same files. This is so that the system can pick (and it does this automatically) the best format that requires the least amount of CPU power for transcoding. If I remember correctly, FXO/FXS cards can use straight PCM files.
Question about "Playback" audio formats - Asterisk Support ...
https://community.asterisk.org/t/question-about-playback-audio-formats/83928
I notice that if I attempt to play a wav sound file in the wrong format, asterisk responds with: Only PCM encoded, 16 bit, mono, 8kHz/16kHz files are supported with a lowercase ‘.wav’ extension. This suggests that 16kHz 16bit mono …
Asterisk 10 Codecs and Audio Formats - Asterisk Project ...
https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats
CELT Pass-through Support. Asterisk 10 adds pass-through support for the CELT codec. CELT provides low-delay transmission of high-quality audio. Unlike many other codecs that are focused on the transmission of human speech only, CELT is suitable for the transmission of both speech and audio, e.g. music.
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).
Correct Audio Formats For Greeting and System Recordings ...
https://community.freepbx.org/t/correct-audio-formats-for-greeting-and-system-recordings/42304
I have used the correct Audio formats (I suppose) WAV Microsoft Signed 16-bit PCM 8000hz mono (I am surprised searching the forums on this turns up no results) But when I log into the UCP I can not upload a greeting. It just hangs (all night I have confirmed) regardless of browser. I also want to confirm the audio format for the IVR/System Records.
Best sounding codec for FreePBX/Asterisk - Tips and Tricks ...
https://community.freepbx.org/t/best-sounding-codec-for-freepbx-asterisk/29328
If you are in the professional broadcast industry, then we often use bonded ISDN channels to get 44Kbs from the “talent” but that is for outbound FM transmission and use PSTN “hybrids” like Zenith to mix the various audio streams back into the broadcast stream, you just can’t polish a turd from the PSTN system (and google voice is even lower quality) unless you …
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