> I need to know the bitstream format of the
MELP's 54 bit frame.?. I
> know what are the different bits (the number of bits for different
> parameters) in the bitstream, e.g. this is the 54 bit format
> Pitch index 7
> Jitter flag 1
> Bandpass voicing decision 4x1
> Gain for second half of frame 5
> Gain for first half of frame 3
> LSP frequencies (10 line spectrum pairs) 25
> Fourier magnitudes (10 harmonies) 8
> Sync bit 1
> Total 54
> What i need to know is, what are the LSB's and what are the
MSB's..?
> e.g. Where is pitch index lies, at the LSB side, or the MSB side..?.
The bits u see above are *after* codebook processing -- u have to back up
before
codebook quantization in the encode side of the algorithm to clearly see
output
parameters.
-Jeff
Reply by Abhijeet Joshi●February 25, 20042004-02-25
Hi,
See the pdf http://65.90.39.159/html/voicecompress.pdf
if you havent seen it already. I think the info on page 6 might be of help
Regards,
Abhijeet
Khubaib <> wrote:
Dear membes
I need to know the bitstream format of the MELP's 54 bit frame.?. I
know what are the different bits (the number of bits for different
parameters) in the bitstream, e.g. this is the 54 bit format
Pitch index 7
Jitter flag 1
Bandpass voicing decision 4x1
Gain for second half of frame 5
Gain for first half of frame 3
LSP frequencies (10 line spectrum pairs) 25
Fourier magnitudes (10 harmonies) 8
Sync bit 1
Total 54
What i need to know is, what are the LSB's and what are the
MSB's..?
e.g. Where is pitch index lies, at the LSB side, or the MSB side..?.
Thanx
Khubaib
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Reply by Khubaib●February 24, 20042004-02-24
Dear membes
I need to know the bitstream format of the MELP's 54 bit frame.?. I
know what are the different bits (the number of bits for different
parameters) in the bitstream, e.g. this is the 54 bit format
Pitch index 7
Jitter flag 1
Bandpass voicing decision 4x1
Gain for second half of frame 5
Gain for first half of frame 3
LSP frequencies (10 line spectrum pairs) 25
Fourier magnitudes (10 harmonies) 8
Sync bit 1
Total 54
What i need to know is, what are the LSB's and what are the
MSB's..?
e.g. Where is pitch index lies, at the LSB side, or the MSB side..?.
Thanx
Khubaib