Offline acoustic echo cancellation

[RemyNtshaykolo]

Hello everyone,

Since real-time AEC is planned for later, I was wondering if you have any recommendations for performing offline echo cancellation.

My use case: I record the user while a backtrack is playing, and after recording I want to remove or reduce the backtrack from the mic signal. I have the mic recording, the exact backtrack file, the sample rate, and an estimated playback latency.

Do you have any guidance or suggestions for implementing offline AEC when both signals are available?

Thanks.