<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Maybe this will be better than my first answer – Audio files do indeed have codec formats. If you are in a particular codec (say G729), Playback/Background and MOH will search for files that match the codec format first, then transcode WAV/GSM/whatever you have to that format if it isn’t found. Ideally, you want to have a copy of each codec you can play for all sounds and MOH. Each of the “canned sounds” comes in each codec format (you pick the ones you want when you do make menuselect).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>RSCL Mumbai<br><b>Sent:</b> Thursday, September 01, 2011 5:35 AM<br><b>To:</b> Asterisk Users Mailing List - Non-Commercial Discussion<br><b>Subject:</b> Re: [asterisk-users] cli command show codecs<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Verdana","sans-serif"'>Hi,<br><br>Does audio files have codec formats? I simply convert all my audios (MOH, accouncements) to .wav format, 16bit, 11kHz (I believe this is the best format for asterisk).<br>I am new to this and may be incorrect.</span><br><span style='font-family:"Verdana","sans-serif"'><br>Going forward, <br>(a) How can I check the codec format of my announcements, MOH ?<br>(b) How can I record/convert announcements, MoH etc to a particular format ?<br><br>I believe its a good idea to prevent transcoding and save CPU overheads.<br><br>Thx<br>Sans<br><br><br></span><o:p></o:p></p><div><p class=MsoNormal>On Thu, Sep 1, 2011 at 11:39 AM, Bruce B <<a href="mailto:bruceb444@gmail.com">bruceb444@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal>if you see leg-A as ulaw and leg-B as g729 then it's trans-coding. If your IVR announcement is not recorded in g729 and you see g729 on the channel when you call into IVR then it's transcoding as well.<o:p></o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Aug 31, 2011 at 5:50 PM, Eric Wieling <<a href="mailto:EWieling@nyigc.com" target="_blank">EWieling@nyigc.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal>Assuming SIP "sip show channels" will show you which codec is used for each call leg. However it does not track transcoding.<o:p></o:p></p><div><p class=MsoNormal><br>-----Original Message-----<br>From: <a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a> [mailto:<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>] On Behalf Of RSCL Mumbai<o:p></o:p></p></div><div><p class=MsoNormal>Sent: Wednesday, August 31, 2011 2:45 PM<br>To: Asterisk Users Mailing List - Non-Commercial Discussion<o:p></o:p></p></div><div><div><p class=MsoNormal>Subject: Re: [asterisk-users] cli command show codecs<br><br>asterisk -rx "core show channels verbose" does not provide transcoding details.<br><br>Unless I have missed something.<br><br>Sans<br><br><br><br>On Wed, Aug 31, 2011 at 10:34 PM, Danny Nicholas <<a href="mailto:danny@debsinc.com" target="_blank">danny@debsinc.com</a>> wrote:<br><br><br> Core show channels verbose is probably your best bet. I think the answer also depends on your * version.<br><br><br><br> From: <a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a> [mailto:<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>] On Behalf Of RSCL Mumbai<br> Sent: Wednesday, August 31, 2011 10:44 AM<br> To: Asterisk Users Mailing List - Non-Commercial Discussion<br> Subject: [asterisk-users] cli command show codecs<br><br><br><br> Hi,<br><br> Is there a CLI command which will tell me the codec used for active calls and if transcoding is happening ?<br><br> Thx<br> Sans<br><br><br> --<br> _____________________________________________________________________<br> -- Bandwidth and Colocation Provided by <a href="http://www.api-digital.com" target="_blank">http://www.api-digital.com</a> --<br> New to Asterisk? Join us for a live introductory webinar every Thurs:<br> <a href="http://www.asterisk.org/hello" target="_blank">http://www.asterisk.org/hello</a><br><br> asterisk-users mailing list<br> To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-users" target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-users</a><br><br><br><br>--<br>_____________________________________________________________________<br>-- Bandwidth and Colocation Provided by <a href="http://www.api-digital.com" target="_blank">http://www.api-digital.com</a> --<br>New to Asterisk? Join us for a live introductory webinar every Thurs:<br> <a href="http://www.asterisk.org/hello" target="_blank">http://www.asterisk.org/hello</a><br><br>asterisk-users mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-users" target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-users</a><o:p></o:p></p></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal><br>--<br>_____________________________________________________________________<br>-- Bandwidth and Colocation Provided by <a href="http://www.api-digital.com" target="_blank">http://www.api-digital.com</a> --<br>New to Asterisk? Join us for a live introductory webinar every Thurs:<br> <a href="http://www.asterisk.org/hello" target="_blank">http://www.asterisk.org/hello</a><br><br>asterisk-users mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-users" target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-users</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>