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Implementation of the digital phase vocoder using the fast Fourier transform
Abstract
This paper discusses a digital formulation of the phase vocoder, an analysis-synthesis system providing a parametric representation of a speech waveform by its short-time Fourier transform. Such a system is of interest both for data-rate reduction and for manipulating basic speech parameters. The system is designed to be an identity system in the absence of any parameter modifications. Computational efficiency is achieved by employing the fast Fourier transform (FFT) algorithm to perform the bulk of the computation in both the analysis and synthesis procedures, thereby making the formulation attractive for implementation on a minicomputer.
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Citations
Cited by
Linear and quadratic time-frequency signal representations
Hlawatsch, F., & Boudreaux-Bartels, G. F. (1992) · IEEE Signal Processing Magazine · doi:10.1109/79.127284 · Cited by 1,632
Short term spectral analysis, synthesis, and modification by discrete Fourier transform
Allen, J. (1977) · IEEE Transactions on Acoustics, Speech, and Signal Processing · doi:10.1109/tassp.1977.1162950 · Cited by 1,051
A unified approach to short-time Fourier analysis and synthesis
Allen, J. B., & Rabiner, L. R. (1977) · Proceedings of the IEEE · doi:10.1109/proc.1977.10770 · Cited by 1,046
Time-frequency representation of digital signals and systems based on short-time Fourier analysis
Portnoff, M. (1980) · IEEE Transactions on Acoustics, Speech, and Signal Processing · doi:10.1109/tassp.1980.1163359 · Cited by 656
Self-citationA weighted overlap-add method of short-time Fourier analysis/Synthesis
Crochiere, R. (1980) · IEEE Transactions on Acoustics, Speech, and Signal Processing · doi:10.1109/tassp.1980.1163353 · Cited by 286
Metadata
- Authors
- Portnoff, M.
- Venue
- IEEE Transactions on Acoustics, Speech, and Signal Processing
- Published
- 1976-06
- Volume
- 24
- Issue
- 3
- Pages
- 243-248
- ISSN
- 0096-3518 (ISSN-L)
- OpenAlex
- W2030639849
- Cited by
- 213
- References
- 0
- FWCI
- 6.25
- Type
- journal article
- Language
- en
- Open access
- closed
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