Re: speech coding with DFT? | Speech Coding

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I there any body doing speech coding with discrete Furier transform? What is the advantage and disadvantage of this approach?

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Hello, There are several methods particularly for low bit rate speech coding which utilize the DFT. For example, in waveform interpolation coding the DFT is done pitch-synchronously for the linear prediction residual signal. The DFT representation of pitch cycles is then downsampled, quantized and transmitted. At a receiving end, synthesized speech signal is obtained using interpolated pitch cycles. Check out [1], [2], and references therein. Regards, Vesa Vesa Ruoppila University of Sherbrooke Department of Electrical Engineering Sherbrooke, Quebec, J1K 2R1, Canada References [1] W.B. Kleijn, "Waveform interpolation for speech coding and synthesis," in Speech Coding and Synthesis (W.B. Kleijn and K.K. Paliwal, eds.), pp. 175-208, Elsevier Science B.V., 1995. [2] E. Choy, Waveform Interpolation Speech Coder at 4 kb/s, Master of Engineering Thesis, Department of Electrical and Computer Engineering, McGill University, Montreal, Canada, August 1998. www.tsp.ee.mcgill.ca/thesis. ---------- From: [mailto:] Sent: 11. October 1999 4:51 To: Subject: [speechcoding] speech coding with DFT? I there any body doing speech coding with discrete Furier transform? What is the advantage and disadvantage of this approach?

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Discussion Groups | Speech Coding | Re: speech coding with DFT?

speech coding with DFT? - Author Unknown - Oct 11 8:51:00 1999

Re: speech coding with DFT? - Vesa Ruoppila - Oct 12 18:51:00 1999