ACELP | ADPCM | AMBE | AMR | AMR-NB | CELP | Codebook | DTMF | G.723 | G.726 | G.729 | GSM | Interpolation | LPC | LSF | LSP | MELP | PCM | Perceptual | Pitch | PSOL | QCELP | Quantization | SMV | VAD | Vocoder

hi dear,
i am doing my masters in digital signal processing and now am doing my theses on watermarking
for compressed speech signals. But, I have some problem in partial encryption of G.729 bit
stream file.How can I know that in any particular speech which bits are of more concerned are
require more security as compared to other.i want to use high protection scheme for encryption
in which i will encrypt only 40% of data.but how can I know which data should be encrypted?
and also suggest me any encryption algorithm you know well.
I hope that you might have got what my problem is.
so hoping for nice and positive response for you all guys as soon as possible.
I am doing my theses based on paper published in IEEE "Perception based partial encryption
of compressed speech".
so you can also refer to that paper to help me in better ways. and I am also ready to pay you
for your kind help.I am not joking at all.

IEEE paper attached herewith...

thanking you all,
sincerely,
Jayesh makwana
new delhi
Mob No.:9899816629.

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