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Discussion Groups
Discussion Groups | Speech Coding
Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
HELP! G.726 ITU Test Vectors Verification errors
aysit - Jun 2 2006
Hi all,
There are two main roadblocks. It just seems like the only thing I can
verify to be working 100% error-free is the encoder portion of the
RESET SEQUENCE test vectors... 
decoding more than one channel with speex_encode_int() [2 Articles]
"mas...@tin.it" - May 24 2006
The problem I met consist of two or more decode each one of them
belong to a different channel.
I'm implementig a easy routine in which
a buffer 160 element wide is crea... Vector quantization of speech
abhisheksgumadi - May 24 2006
Hi,
I am working on low bit rate speech coding.
I have efficiently quantized the lpc coefficients using vector
quantization methods. I am looking at an efficient way of quantizi... wiener filter implementation. [2 Articles]
yajn...@gmail.com - May 23 2006
Hi,
I am currently working on a speech enhancement project. I am implementing a noise cancellation system using Wiener filter.
> From what I read in the text books and from the n... Re: windowed sinc interpolation using FIR filter
wang...@163.com - Apr 25 2006
Hi,
It means that FIR filter is designed using truncated sinc function by hamming window. This FIR filter corresponds to a low-pass linear phase filter and is used to interpo... about wavelet decompostion of CWs?
wang...@163.com - Apr 25 2006
Dear all,
I want to use wavelet analysis to decompose and reconstruct CWs based on biorthogonal FIR linear phase filter banks , but I have found that the time delay of 3-leve... Speex command-line
devilal sharma - Apr 17 2006
Hi,
can somebody tell me where Speex computes residual
signal in the encoder. I mean the difference of
original and the reconstructed signal. I need to
output this residual sig... Windowing input signal [2 Articles]
rcal...@yahoo.com - Apr 12 2006
Hi,
I want to window an audio signal using a Hamming window before I perform an autocorrelation on it. What are the criteria for choosing a window length.
Also, what do I do if... Generate speech signal [2 Articles]
Richard Caldwell - Apr 3 2006
Hi,
trying to generate a speech like signal using matlab by passing an impulse train through 3 bandpass filters in series. They have centre frequencies in the range 500Hz to 2kH... G.729 Codebook search for gain quantization and decoding
Saloni Shah - Mar 10 2006
My query is regarding the pre selection process done for quantization of gains in section 3.9.2 of ITU-T recommendation for G.729 speech codec standard. ...