UserWarning: Creating a tensor from a list of numpy.ndarrays is extremely slow.

[ZhaoXiangyu99]

我在使用官方demo的时候，控制台有个warnng:
UserWarning: Creating a tensor from a list of numpy.ndarrays is extremely slow. Please consider converting the list to a single numpy.ndarray with numpy.array() before converting to a tensor. (Triggered internally at ../torch/csrc/utils/tensor_new.cpp:230.)
ampl = torch.as_tensor(ampl, dtype=sig.dtype, device=sig.device).unsqueeze(-1)
请问应该怎么调整输入呢

[wenh06]

The reason for this warning seems to be that you are not using the latest version, since the code

ampl = torch.as_tensor(ampl, dtype=sig.dtype, device=sig.device).unsqueeze(-1)

where this warning is raised has been modified to

ampl = torch.as_tensor(
    np.array(ampl), dtype=sig.dtype, device=sig.device
).unsqueeze(-1)

Please check here.

If you have any other problems, please feel free to open issues.