Please note that we are slowly moving to Github https://github.com/ltfat.
Everything here is kept up-to-date.
The Large Time/Frequency Analysis Toolbox is a Matlab/Octave/C toolbox for doing time/frequency and wavelet analysis. It is inteded as both an educational and a computational tool.
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| Website |
http://ltfat.sourceforge.net |
| Tags |
Mathematics |
| License |
GNU General Public License version 3.0 (GPLv3)
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| Features |
- Perfect reconstruction Gabor transforms (Short-Time Fourier Transform)
- Perfect reconstruction time-Frequency bases (MDCT and Wilson bases)
- Backend in C with frontends for Matlab and Octave
- Perfect reconstruction filterbanks
- Perfect reconstruction non-stationary Gabor systems
- FFT for real valued signals, 8 DCT and DST transforms
- Instantaneous frequency calculation and reassignment methods
- Auditory filters and scales: Erb, Bark, Mel, Gammatone filters.
- Sparse regression (Basis pursuit, LASSO and group LASSO)
- Operations on coefficients in the TF plane
- Matlab GUI to perform spectrogram modifications
- Spreading function representation
- High quality spectrogram, spectrogram inversion
- Useful tools from finite, discrete Fourier analysis
- Zero-delay FIR filters
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