Yes, and there are many other libs doing similar things too. But all I have seen so far could not satisfy my needs. As for the scipy.signal.cwt method, it doesn

Yes, and there are many other libs doing similar things too. But all I have seen so far could not satisfy my needs. As for the scipy.signal.cwt method, it doesn't support complex output: https://github.com/scipy/scipy/issues/3793 https://github.com/scipy/scipy/issues/3793 So you can't separate amplitude and phase, which is often needed.