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MITSUBISHI SOUND PROCESSOR ICs
M65845AFP
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
4 Vocal cut
It is a method turned down Lch and Rch input having the same phase and sound .
Lowpass cut off frequency fc is determined by a capacitance which connect to 36 pin
(vocal cut filter).
It is also having a function which through frequency under vocal level for supplying a
lack of low level sound.
Rvc=20k typ
36
C34
1
2πRvcC34
fc=
at fc=50Hz, C34=0.15µF is determined.
Caution; Inside resistance is changeable one by one which rate is ±30%.
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