The Large Time-Frequency Analysis Toolbox (LTFAT) is a Matlab/Octave toolbox for working with time-frequency analysis and synthesis. It is intended both as an educational and a computational tool. The toolbox provides a large number of linear transforms including Gabor and wavelet transforms along with routines for constructing windows (filter prototypes) and routines for manipulating coefficients.

LTFAT is developed at the Acoustics Research Institute by Clara Hollomey, with Nicki Holighaus and Peter Balazs as advisors.

Documentation and further information on LTFAT can be found here:

Recent release history:
09.09.2023: release LTFAT 2.6.0:
The new release 2.6.0 features a demonstration for the construction of constant-Q like wavelet filter banks, and new functionality for the creation of fusion frames as well as the calculation of higher order phase derivatives in real-valued signals.

The new continuous integration and deployment support allows for the seemless testing and categorization of future contributions to the code. Additionally, LFAT 2.6.0 features several bugfixes, and improvements to the compilation process on Microsoft Windows.

30.05.2022: release LTFAT 2.5.0