Hi @martin.hajek1

Problem is that I cant put there array of size [64, 8000] and I need to put there [64, 1, 8000]. Why is this?

So your model uses nn.Conv1d layers that requires input_channel and output_channel arguments. 64 is the batch size, 8000 is the number of audio samples in your batch. The input channel is 1 as there is only one channel of audio. That’s why you need your input to be of size [64, 1, 8000].