hi all,
G.729 recommendation states:-to predict the values of LSF a 4th oreder
MA is used.Two predictions are possible .the encoder chooses which one to use
and indices it with a bit in the bit stream.
after prediction ,prediction error is computed .this error is sent to decoder by
vector quantizing it.
my que is what are these two possible predictions ?
what is MA prediction?
can any body please explain VQ in simple terms.how G.729 does this..
any online reference wud be great help
thanx and regards.
Raj
Quantization of LSP /G.729
Started by ●August 22, 2006
Reply by ●August 24, 20062006-08-24
Dear Raj,
I recommend two IEEE papers:
(1)Design and description of CS-ACELP: a toll quality 8 kb_s speech coder
(2)Implementation and performance of an 8-kbit/s conjugate structure CELP speech coder
Best regards
Jianfeng XU
hi all,
> G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it with a bit in the bit stream.
>after prediction ,prediction error is computed .this error is sent to decoder by vector quantizing it.
>my que is what are these two possible predictions ?
>what is MA prediction?
>can any body please explain VQ in simple terms.how G.729 does this..
>any online reference wud be great help
>
>thanx and regards.
>Raj
I recommend two IEEE papers:
(1)Design and description of CS-ACELP: a toll quality 8 kb_s speech coder
(2)Implementation and performance of an 8-kbit/s conjugate structure CELP speech coder
Best regards
Jianfeng XU
hi all,
> G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it with a bit in the bit stream.
>after prediction ,prediction error is computed .this error is sent to decoder by vector quantizing it.
>my que is what are these two possible predictions ?
>what is MA prediction?
>can any body please explain VQ in simple terms.how G.729 does this..
>any online reference wud be great help
>
>thanx and regards.
>Raj
Reply by ●August 24, 20062006-08-24
Hi,
Refer "Digital speech" by Kondoz
BVL
w...@yahoo.com wrote:
hi all,
G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it with a bit in the bit stream.
after prediction ,prediction error is computed .this error is sent to decoder by vector quantizing it.
my que is what are these two possible predictions ?
what is MA prediction?
can any body please explain VQ in simple terms.how G.729 does this..
any online reference wud be great help
thanx and regards.
Raj
Refer "Digital speech" by Kondoz
BVL
w...@yahoo.com wrote:
hi all,
G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it with a bit in the bit stream.
after prediction ,prediction error is computed .this error is sent to decoder by vector quantizing it.
my que is what are these two possible predictions ?
what is MA prediction?
can any body please explain VQ in simple terms.how G.729 does this..
any online reference wud be great help
thanx and regards.
Raj