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Discussion Groups | Speech Coding
Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
Search Results for "vad"
GSM FR VAD function
yuehengs - Aug 22 2003
I built a code for GSM FR VAD, which can pass all test vector without
any problem. But when I test on board I notice if voice is not high
enough, (voice input's ... 
AMR/G729 VADs as benchmark
smal...@yahoo.com - Aug 21 2005
Dear all,
I've downloaded the sourcecode for AMR speech codec (3GPP AMR reference ode).
This codec optionally uses one of the 2 VADs defined in the standard.
I wanted some... g711 VAD [2 Articles]
merln101 - Jul 7 2005
Anyone can help finding code for g711 VAD calculation/energy
calculation ?
Many thanks
Marly
... AMR Codec VAD [3 Articles]
Harsha - Jan 30 2002
Hi All,
Please let me know the actual difference between VAD option 1 and VAD Option 2 in the GSM AMR codec. Under what
conditi... G. 729 annex B
ludovic44fr - Mar 13 2002
hi everybody,
I'm still working on the G. 729B, and to be honest i really struggle.
I just realized (last page of the G 729B datasheet) that a VAD
simulation soft... VAD/CNG module for GIPS ILBC [2 Articles]
navithak - Oct 8 2007
Hi,
I have implemented Gips ILBC codec on adsp 2185..However I am unable
to find any information on the vad/dtx module..Is that royalty free
as well?? Where can I obtain it?A... Re: abt VAD algorithm 1 of AMR codec
rock...@yahoo.com - Oct 19 2006
hi sameer,
do you still have the c-code for the vad you mentioned below. i'm working on it now and it would be quite helpful if you could help me out with it.
looking forward to ... abt VAD algorithm 1 of AMR codec
Sameer Kibey - Jul 25 2002
Hi all!
i have a query regarding the VAD algorithm 1 used in GSM AMR speech codec.one of
the steps in this algo is the use of a filter bank. this bank consists o... rega G.711
Mohan Reddy - Jun 7 2007
Hi
I am loking for a G.711 codec were do I get fixed point implememtation of
it
I want to use this to stream audio onto a network may be the internet, do i
need
Packet loss... VAD
lmaigrot - Mar 6 2002
I'm a student and i'm working on voice activity detection.
I use ITU-T recommendation G-729 annexe B.
Some equations are missing on my G-729.I'm looking for some
... G729 AB Codec
Karthigeyan Vaidyanathan - Oct 30 2001
Hi all,
When we implement G729ab speech codec, should we also
test and pass all the G729a testvectors by disabling
VAD/CNG? Can I pass only the G729ab testvecs a... reg. G.729 VAD
tallapragada bramara - Oct 7 2002
hello everybody,
i am a new member to this group.
in the G.729 Annex B, there is a comparision of full band energy with 15 db to
decide whether the frame is... g.729 annex B
lmaigrot - Apr 24 2002
Hi all
I have a problem with table of constant for multi-boundary initial
voice activity decision. Basically i compare itu recommendation and c
code. If you re... a doubt on half rate gsm implementation aspects.
Zij Nam - Jul 24 2001
Hi yahoos,
I am now using ansi c source for 1/2 rate
gsm for a software driven voice applicaton .
is it neccesary to use DTX, VAD in the minimum
implementati... AMR light energy estimation [2 Articles]
nir....@gmail.com - Jul 23 2008
I am implementing a Jitter buffer for VOIP application.
We use AMR as speech vocoder.
I need to throw away some packets.
I would like to throw packetes that have low energy co... Re: Determining sound intensity from G.729 parameters [4 Articles]
Jeff Brower - Nov 25 2002
Charles-
Phillip's question was about how to avoid full decode and still get some useful
information. If I understand his intent correctly, then VAD/DTX, zero cr... problems with SID bitstream
Armen Baloyan - Dec 16 2002
hi all, i'm implementing VAD/CNG/DTX algorithm and have problems with SID
bitstream, in Comfort Noise payload draft-ietf-avt-rtp-cn-05.txt and in ITU-T
Recomendatio... Re: regarding speech.in file in G.729 [2 Articles]
Shankar Shashi - Nov 7 2002
hi,
you obviously cant read the .in file because it is in binary format, if u want
to see it in hex/decimal format, the easiest way is to dump the data in the
g.7... Re: AMR codec (ETSI version v.s. 3GPP version)
Shivanand Hiremath - Feb 1 2004
Another diffrence.. In ETSI one flag called NSYNC is used as input from
the n/w. Where as in 3GPP this is not used. The NSYNC is used in mobile
communication when s...