Other
Waveform coding.
In waveform coding, we try to find an efficient
representation of the waveform, directly. In this methods we use the
correlation between two or more step samples or a complex quantize algorithm.
1.2 Transform coding.
Two major types of frequency-domain speech coders are
subband coders (SBC) and adaptive transform coders (ATC).
In SBCs, the speech is divided into four or more frequency bands and each of
these subband signals is coded separately.In ATCs the speech is divided into
blocks, each speech block is transformed, and the transform coefficients are
coded. The primary difference is that transform coders usually have more
channels and poorer equivalent channel subband coders.
1.3 Parametric coding.
In this
matlab
编码
No comment