PBXes » English » Feature Requests » RE: G722 for voice messages
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opf
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Registration Date: 08.07.2009
Posts: 5

Fragezeichen G722 for voice messages Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Hello,

Our trunks, phones and the PBX support the G722 codec (HD Voice) with a 16 kHz sampling rate.

Now we want to have voice messages (digital receptionist and voicemail) in high fidelity as well.

I've tried to upload a 16 kHz 16 bits WAV file, but it is rejected unglücklich

Thanks for your answer.

This post has been edited 1 time(s), it was last edited by opf on 31.08.2017 at 15:00.

31.08.2017 14:59 opf is offline Search for Posts by opf Add opf to your Buddy List
i-p
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Registration Date: 14.01.2006
Posts: 4472

RE: G722 for voice messages Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

We would be able to process G.722 encoded files for playback. Before we work on implementing this, we will try to figure out how to encode audio files into this format. If you have any idea on that, please let us know.

25.09.2017 14:38 i-p-tel is offline Search for Posts by i-p-tel Add i-p-tel to your Buddy List
eco
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Registration Date: 05.12.2008
Posts: 14

RE: G722 for voice messages Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Hello,

First I use OS X speech synthesis to prepare a 16 bits 16 kHz WAV LPCM audio file:

code:
say -v Daniel "I'm a british voice, this is a test of the G722 codec" -o test.wav --file-format=WAVE --data-format=LEI16@16000


Then you can transcode it into G722 using ffmpeg:

code:
ffmpeg -i test.wav -acodec g722 test.g722


And you can convert it back to WAVE:

code:
ffmpeg -i test.g722 -acodec pcm_s16le test.back.wav

09.11.2017 12:59 ecodev is offline Search for Posts by ecodev Add ecodev to your Buddy List
i-p
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Registration Date: 14.01.2006
Posts: 4472

RE: G722 for voice messages Post Reply with Quote Edit/Delete Post Report Post to a Moderator       IP Information Go to the top of this page

Great, we are now working on the implementation. Expect it to be ready for testing in December.

10.11.2017 16:13 i-p-tel is offline Search for Posts by i-p-tel Add i-p-tel to your Buddy List
 
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