[Asterisk-Users] Anyone else use Audacity for prompts?

[Michael T Farnworth]

I have had been recording my gsm files by getting through to the Asterisk
answering service using a GrandStream BudgeTone 102 phone.  I then copy
the file which is stored in voicemail and use sox to increase the volume.  
Results are okay but nothing to write home about particularly (or maybe 
that is just my lack of a good telephone voice).

Michael

On Mon, 6 Oct 2003, Brian Capouch wrote:

> Shaun Ewing wrote:
> >>
> >>I know that some of this comes with the territory, but I wonder if
> >>there is anyone out there who does this ( wav -> gsm) routinely, and
> >>who can advise me as to the MO I could use that results in the highest
> >>quality in the resulting playback files.
> > 
> > What are you using to convert the wav files to gsm? I've been using 'sox'
> > under Linux and have had no quality issues whatsoever.
> > 
> > An example line to convert:
> > 
> > sox file.wav -r 8000 -c 1 file.gsm
> > 
> 
> That's the exact command I'm using, but it sure does sound crappy to my 
> ears.
> 
> Perhaps that's the best I can do w/gsm, and of course I expect once the 
> sound is sent through the PSTN most of the highs and bottom are gone 
> anyways.
> 
> I was just hoping there was something I could do to make the resulting 
> files a bit clearer.
> 
> Thx.
> 
> B.
>