[asterisk-users] Cannot play soundfile, doesnt find it or wrong format? Weird, worked yesterday! :-)

[Steve Edwards]

On Thu, 20 Aug 2009, Danny Nicholas wrote:

> BTW, you eat CPU trying to play wav files across channels (gsm is 
> preferable (IMO) ) and the file has to be at 8000 Khz for Asterisk to 
> like it.

On Thu, 20 Aug 2009, Johan Sandgren wrote:

> Advice taken!  Ok I'll use gsm/8kHz instead, I sure want to save CPU!

Please don't unless you understand the implications.

If your goal is to reduce transcoding (converting from one encoding to 
another), you want to have your sound files in the same encoding as your 
channels.

If you are only using GSM, then you would want your sound files (including 
all of the standard Asterisk prompts) in GSM.

If you are only using ULAW (like me), then encoding to GSM means Asterisk 
will have to transcode every file every time it is played.

If you are using a mix of encodings, say ULAW for internal calls and GSM 
for external calls, you would want to have your sound files (again, 
including all of the standard Asterisk prompts) in both ULAW and GSM 
encodings.

-- 
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                              Fax: +1-760-731-3000