[Asterisk-Users] most common VOIP echo simulaton for research purposes ?

[Giridhar Bandi]

thats good to hear .but there are so many digium cards that does echo
distortion
then why do you want to do this

Giridhar Bandi

On 3/7/06, Robert Rozman <robert.rozman at comutel.si> wrote:
>
> Hi,
>
> I'm speech recognition researcher and would like to do some research on
> recognition robustness in echo distortion of speech signal. Since VOIP is
> becoming wide spread, I'd like to simulate (one or more) common echo
> distortions that mostly appear in voip communications ? Any example, FIR
> or
> IIR filter or acoustical system response ?
>
> Any other distortion worth researching ?
>
> Thanks in advance,
>
> regards,
>
> Rob.
>
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