[asterisk-users] Mp3 for IVR prompts

[RSCL Mumbai]

On Sat, Oct 10, 2009 at 7:59 PM, Steve Edwards <asterisk.org at sedwards.com>wrote:

> On Sat, 10 Oct 2009, gergis.rasmy wrote:
>
> > can i use MP3 files as an IVR prompts directly without converting to
> > .gsm format?
>
> You don't want to do this.
>
> Asterisk will attempt to use prompts encoded with the same codec being
> used for the channel. So, unless you have a channel that is using MP3,
> Asterisk would have to transcode the prompt every time it is used. Why
> would you want to "burn" CPU cycles for this useless activity?
>
> You should strive to have prompts available in all the channel encodings
> actually used by your system. I have systems that only use ULAW, so all of
> my prompts are encoded as ULAW. (Sometimes I "cheat" and use WAV files
> since they are easier to work with and transcoding from WAV to ULAW is
> "cheap.")
>
>
How should I convert my .wav prompts into aLaw, uLaw, G729 ?

Thx
Vai
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