Real-Time Signal Reconstruction from Short-Time Fourier Transform Magnitude Spectra Using FPGAs

Abstract : Real Time implementation of new frequential domain synthesizer algorithm based on the Nawab approach for signal reconstruction from short-time Fourier transform magnitude spectra is proposed in this paper. A register-transferlevel (RTL) synthesizer based on our algorithm was designed and simulated using VHDL as the hardware description language in respecting real time delay. The implemented RTL model was verified by comparing its performances with those obtained from a Python language implementation of the same synthesizer. We prove in particular that the proposed algorithm can be implemented in real time with a sampling frequency up to 60 kHz. Finally a real time implementation using an Altera DE2 development kit, generating good quality audio signals, was implemented.
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Communication dans un congrès
5th. International Conference on Information Systems and Economic Intelligence - SIIE ̓ 2012, Feb 2012, Djerba, Tunisia. 2012
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Mouhcine Chami, Joseph Di Martino, Laurent Pierron, El Hassan Ibn Elhaj. Real-Time Signal Reconstruction from Short-Time Fourier Transform Magnitude Spectra Using FPGAs. 5th. International Conference on Information Systems and Economic Intelligence - SIIE ̓ 2012, Feb 2012, Djerba, Tunisia. 2012. 〈hal-00761783〉

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