thanks Dan. I found some simple VAD algorithms on comp.speech but no
pointers on its implementation in G.723.1. I went thru' the G.723.1
rec. available at http://www.ece.cmu.edu/~ece796/documents/g723-1e.pdf
but it does not mention about VAD. I dont require any code or DSP
implementation. I just need the VAD algorithm as in G.723.1 in words.
any specific pointers?
hitesh_dj
Daniel A. Ash wrote:
> The ITU web site sells the G.723.1 spec and code for a reasonable fee.
> (<$100 US).
>
> A google search turned up the following:
>
> http://www.absoluteastronomy.com/encyclopedia/S/Sp/Speex.htm
>
> A google GROUP search turned some good results too:
>
> There are lots of companies selling the code on various CPU
> architectures. There used to be a comp.speech UseNet group. Check
> their archives too.
>
> regards,
>
> Dan
>
> hitesh_dj@yahoo.com wrote:
> > Hi,
> >
> > I wanted to know how Voice Activity Detection (VAD) is handled in
> > G.723.1 speech codec. How silence is detected and what parameters are
> > passed to the decoder? Also what the decoder does in this case? I
> > appreciate any help on this.
> >
> > hitesh_dj
> >
Reply by Daniel A. Ash●June 15, 20052005-06-15
The ITU web site sells the G.723.1 spec and code for a reasonable fee.
(<$100 US).
A google search turned up the following:
http://www.absoluteastronomy.com/encyclopedia/S/Sp/Speex.htm
A google GROUP search turned some good results too:
There are lots of companies selling the code on various CPU
architectures. There used to be a comp.speech UseNet group. Check
their archives too.
regards,
Dan
hitesh_dj@yahoo.com wrote:
> Hi,
>
> I wanted to know how Voice Activity Detection (VAD) is handled in
> G.723.1 speech codec. How silence is detected and what parameters are
> passed to the decoder? Also what the decoder does in this case? I
> appreciate any help on this.
>
> hitesh_dj
>
Reply by ●June 15, 20052005-06-15
Hi,
I wanted to know how Voice Activity Detection (VAD) is handled in
G.723.1 speech codec. How silence is detected and what parameters are
passed to the decoder? Also what the decoder does in this case? I
appreciate any help on this.
hitesh_dj