Signal Reconstruction from Multiresolution STFT Magnitudes with Mutual Initialization
Multiresolution STFT audio processing usually has the problem how to detect and separate transients from steady-state signals. We propose a method to avoid this issue by initializing the phase estimation of the longwindow STFT with the result of the short-window STFT and vice versa. The reason behind this approach is that the better temporal resolution of the short-window STFT moves information about the temporal behavior of the signal from the phase spectrum to the magnitude spectrogram, making it accessible to the phase estimator in the initialization step. An evaluation shows the advantage of this method compared to the previously used approaches.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is temporarily free for AES members.