AEC | Double Talk | ERLE | G.168 | LEC | NLMS

Hi, All

I'm currently doing a project on G.167 compliant AEC.

For teleconference systems, the reverberation time averaged over the transmission bandwidth shall be typically 400 ms;

For hands-free telephones and videophones, the reverberation time averaged over the transmission bandwidth shall be typically 500 ms;

For mobile radio telephones, a typical average “reverberation time” is 60 ms.

My question here is how to simulate the echo? Is there any software to simulate such long echo? Thanks
Kevin

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