A Speech Scrambler Using the Fast Fourier Transform Technique.
Keiichi SakuraiKeiichiro KogaTakuro MurataniPublished in: IEEE J. Sel. Areas Commun. (1984)
Keyphrases
- fast fourier transform
- fourier transform
- frequency domain
- spectral analysis
- signal processing
- floating point
- speech recognition
- speech signal
- fourier transformation
- discrete wavelet transform
- short time fourier transform
- neural network
- radon transform
- pattern analysis
- hartley transform
- discrete fourier transform
- discrete cosine transform
- spatial domain
- data fusion
- denoising
- probabilistic model
- image sequences