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Discussion Groups | Speech Coding
Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
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. ... Adaptive Codebook generation in AMR speech codec
abhi...@gmail.com - Mar 1 2006
Hi, I am working on a project that implements CELP coding, as in AMR codec for GSM. The codec uses a 'codebook' to store 'code vectors', which are compared with excitation vecto... enhancement of packet loss-concealment of g729 standrd usin wsola.
mmusdz - Feb 25 2006
Hi
I am the final year engineering student, my aim is to enhence the g729
standard.
Could anybody give me some relative info or give me the source code in
C++ about time-sc... AMR WB+ (fixed point) Frame duration [2 Articles]
chandresh - Feb 23 2006
Hi all,
I am trying to port ABR WB+ (fixed point baseline) to a particular platform. I want to calculate its MIPS consumption on this platform. I know, if
... overall level of the masking threshold [2 Articles]
#ARIJIT BISWAS# - Feb 21 2006
Dear List:
I was wondering if it is possible to predict the "overall level of the masking threshold" based on some statistics of the input signal (e.g. power, power spectral d... G.722.1 16kbps same as Siren at 16kpbs?
bvallikkat - Feb 14 2006
Anyone tried codec with siren? Some links say that g.722.1 at 16kbps
is same as siren at 16kbps. Any idea about how Microsoft does the
encode/decode???
Any thoughts or inform...