CS6422-4 N/A, CS6422-4 Datasheet - Page 28
CS6422-4
Manufacturer Part Number
CS6422-4
Description
Enhanced Full-Duplex Speakerphone IC
Manufacturer
N/A
Datasheet
1.CS6422-4.pdf
(48 pages)
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3.8.6
3.8.7
3.8.8
3.8.9
28
AECD - ACOUSTIC ECHO CANCELLER DISABLE
NECD - NETWORK ECHO CANCELLER DISABLE
ASDT - ACOUSTIC SIDETONE LEVEL
NSDT - NETWORK SIDETONE LEVEL
Setting this bit to a ‘1’ disables the Acoustic Echo Canceller. The AEC is removed from the signal
path and is not considered in the half/full-duplex decision making process.
Setting this bit to a ‘1’ disables the Network Echo Canceller. The NEC is removed from the signal
path and is not considered in the half/full-duplex decision making process.
This control allows the introduction of a linear coupling path for the AEC to train on. The real acoustic
path is superimposed on this path and both are cancelled by the AEC.
The use of an acoustic sidetone is beneficial in environments where the real acoustic path may be
highly variable, faint, or distorted, such as in hands-free automotive applications. This control is usu-
ally set to ‘none’.
This control allows the introduction of a linear coupling path for the NEC to train on. The real network
path is superimposed on this path and both are cancelled by the NEC.
The use of a network sidetone is beneficial in environments where the real network path is faint or
distorted. This control is usually set to ‘none’.
CS6422
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