| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-voice demodulator where a noise canceller with respect to a television voice-multiple signal is effectively activated. SOLUTION: This multi-voice demodulator is a multi-voice demodulator having a noise canceller, and band elimination filters 5, 16 to eliminate a sub voice carrier are placed to a pre-stage of main voice and sub voice signal gate circuits 7, 17 to decrease a change in a storage level by the sub voice carrier so as to reduce a noise by the holding operation in the case of the holding. Furthermore, the band elimination filter 5 to eliminate the sub voice carrier signal is placed to a pre-stage of a noise detection section 39 to detect a noise even when there exists the sub voice carrier.
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