The Large Time/frequency Analysis TB Icon

The Large Time/frequency Analysis TB

LTFAT is a Matlab/Octave Fourier, time-frequency and wavelet toolbox.

5.0 Stars (2)
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Description

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.

The Large Time/frequency Analysis TB Web Site

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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User Reviews

  • melaniejensen
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Thanks for so usefull software.

    Posted 06/23/2013
  • petibub
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    great tool!

    Posted 05/03/2010
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Additional Project Details

Intended Audience

Education, Engineering, Science/Research

Registered

2007-02-07
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