Manipulating WAV files

[David A. Bandel]

On 9/2/07, james at jamesmcdonald.id.au <james at jamesmcdonald.id.au> wrote:
> > Folks,
> >
> > Anyone know of a good, easy-to-use program to manipulate .wav files
> > (or ulaw or alaw or gsm -- but I can convert between these easily
> > enough)?
> >
> > What I need to do:
> > normalize sound (volume)
> > add or remove silence to/from beginning or end of sound byte (usually
> > remove from end)
> > speed up or slow down (optional)
> >
> > This is for an IVR (interactive voice recording) for Asterisk.
> >
> > Thanx,
> >
> > David A. Bandel
>

First, thanx to folks for their suggestions.  Audacity is doing _very_
well and can read and write ulaw and alaw files directly.

> How are you finding Asterisk?

excellent.

>
> I still haven't been able to justify the cost when compared to normal PABX
> systems.
>
> e.g.
>    Server
>    VoIP handsets
>    Special ISDN cards for the server
>
> adds up to more than an off the shelf phone system

Depends.  If you're talking less than about 20 incoming phone lines,
yes.  I have an E-1 with 100 numbers and customers scattered around to
the 4 winds using my numbers.  One customer is a hotel w/ their own
asterisk trunked to mine to take advantage of the digital lines.

You might also want one if you're a call center.  Perhaps one for your
home (if you' re a real geek).  But most small businesses are better
off with a Cisco PBX.

Ciao,

David A. Bandel
-- 
Focus on the dream, not the competition.
            - Nemesis Air Racing Team motto