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參數(shù)資料
| 型號： | M65856SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT |
| 中文描述： | 數(shù)字回聲混合電路和麥克風(fēng) |
| 文件頁數(shù)： | 16/17頁 |
| 文件大?。?/td> | 100K |
| 代理商： | M65856SP |
ELECTRIC
MITSUBISHI
M65856SP
MITSUBISHI SOUND PROCESSOR ICs
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
(10)Following is the phase shifter block, which makes phase surround effect.
Source selector
Surround
L
R
(L+R)/2
Vocal cut
Stereo
Simulated Stereo
Stereo Surround
Lch OUTPUT
Rch OUTPUT
Lch INPUT
Rch INPUT
C(external)=0.022μF
38
39
Phase Shifter
Surround Circuit
The sound components of the same phase and same sound volume in the L and R
channels are attenuated.
This made also allows components with lower frequency than the vocal band to pass
through the filter, to compensate insufficient low-frequency sound.
Lch INPUT
Rch INPUT
LPF is formed by the internal R (20k
) and the external C,
where C=0.15μF , cut off frequency is 53Hz.
fvc=
2
π
CR
1
=53.0Hz
C
0.15μ
37
vocal cut block
(9) Vocal cut support
OUTPUT
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