[asterisk-users] Problems replaying G.726 - only noise

[Michael Hirschbichler]

Hm,

when I use "exten => 2000,n,SayDigits(1234)", then I also get only noise
since the beginning of the call. Any ideas?

br
Michael

Michael Hirschbichler wrote:
> Hi all,
> 
> im my current test-environment, I want asterisk to play a wav-file as a
> response to a g.726-32 call
> 
> extensions.conf
> exten => 2000,1,Answer()
> exten => 2000,n,Playback(some_sentence)
> exten => 2000,n,Hangup()
> 
> When I play the wave-File with mplayer, I am getting the following
> file-information:
> 
> Audio file file format detected.
> ==========================================================================
> Forced audio codec: mad
> Opening audio decoder: [pcm] Uncompressed PCM audio decoder
> AUDIO: 8000 Hz, 1 ch, s16le, 128.0 kbit/100.00% (ratio: 16000->16000)
> Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
> ==========================================================================
> AO: [alsa] 48000Hz 1ch s16le (2 bytes per sample)
> 
> Now, when activating the G.711 alaw in the calling client, everything is
> working fine, I can create the call to the * and I get the sentence
> played correctly.
> 
> But when I create a SIP-call to the *PBX, where only G.726-32 is allowed
> as RTP-codec on the caller, the call is also received, but I only get
> random noise.
> 
> Well, as I had no clue, what to do, I tried to convert the wav-file to
> g726-32 explicitely with the asterisk-"convert" command:
> file convert /usr/share/asterisk/sounds/some_sentence.wav /usr/share/
> asterisk/sounds/some_sentence.g726-32
> 
> As a result, I got the following error:
> Failed to convert /usr/share/asterisk/sounds/some_sentence.wav to
> /usr/share/asterisk/sounds/some_sentence.g726-32!
> [Oct 19 16:13:54] WARNING[8846]: format_g726.c:166 g726_write: Invalid
> data length 69, should be multiple of 40
> [Oct 19 16:13:54] WARNING[8846]: file.c:209 ast_writestream: Translated
> frame write failed
> I do not know, if this error is related to the problem described above.
> 
> Any help is welcome,
> 
> br
> Michael
> 
> PS: Asterisk 1.4.17~dfsg-2ubuntu1.1 built by buildd @ vernadsky on a
> i686 running Linux on 2009-09-25 19:24:25 UTC on Ubuntu Hardy
> 
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> 
> AstriCon 2009 - October 13 - 15 Phoenix, Arizona
> Register Now: http://www.astricon.net
> 
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users