Phase Reconstruction from Spectrograms

Single Pass Spectrogram Inversion

This is a companion page for the paper:
Beauregard, G., Harish, M. and Wyse, L. (2015), Single Pass Spectrogram Inversion, in Proceedings of the IEEE International Conference on Digital Signal Processing. Singapore, 2015.

Here is an SPSI Python notebook at GitHub.

And here is a MATLAB implmentation

Sound samples from the DSP15 paper

Here is a real-time SPSI demo which runs in the web browser and allows you to use your own mp3 files. The demo also supports time-scale modification, accomplished by varying the analysis step size during analysis.

Related Work

• X. Zhu, G. T. Beauregard, and L. L. Wyse, "Real-Time Signal Estimation From Modified Short-Time Fourier Transform Magnitude Spectra," IEEE Trans. Audio Speech Lang. Process., vol. 15, no. 5, pp. 1645-1653, Jul. 2007.
• X. Zhu, G. T. Beauregard, and L. Wyse, "Real-time iterative spectrum inversion with look-ahead," in Proceedings of the 2006 IEEE International Conference on Multimedia and Expo, 2006, pp. 229-232.
  [Sound examples are here]
• G. Beauregard, X. Zhu, and L. Wyse, "An efficient algorithm for real-time spectrogram inversion," in Proceedings of the 8th International Conference on Digital Audio Effects, Madrid, Spain, 2005, pp. 116-118.
  [Sound examples are here]

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