Manipulating WAV files

[james at jamesmcdonald.id.au]

> 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

How are you finding Asterisk?

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