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Method for acoustic echo cancellation

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jorgito

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Hello All,

I need to implement a simple voice amplifier. I have no flexibility on microphone or speaker location and I'm affraid I'll have acoustic feedback (howling).

Is there some purely analog method or IC for acoustic echo cancellation?

I wonder about hands free telephone operation.... Have they such kind of circuit?

Thanks in advance and best regards
 

BGA

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Re: Echo canceller?

check cs6422 from crystal.
 

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