How to get echo signal based on the far end speech?

[YoungJay0612]

Hello guy, Sorry to bother you. But I have a doubt about the simulation form far end speech to the echo signal. As we know, it is a nonlinear distortion process, so I wonder how to simulate the nonlinear distortion and get the echo signal?
Hopelly to hear from you, Thanks so much!

[andosa]

There is no out-of-the box solution for this. You can apply non-linear transformations on the waveform and apply RIR, or learn the NN models of distortion/RIR functions from the data