f=iwmdct(c,g); f=iwmdct(c,g,Ls);
| c | M*N array of coefficients. |
| g | Window function. |
| Ls | Final length of function (optional) |
| f | Input data |
iwmdct(c,g) computes an inverse windowed MDCT with window g. The number of channels is deduced from the size of the coefficient array c.
The window g may be a vector of numerical values, a text string or a cell array. See the help of wilwin for more details.
iwmdct(f,g,Ls) does the same, but cuts or zero-extends the final result to length Ls.
[f,g]=iwmdct(...) additionally outputs the window used in the transform. This is usefull if the window was generated from a description in a string or cell array.
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J. P. Princen, A. W. Johnson, and A. B. Bradley. Subband/transform coding using filter bank designs based on time domain aliasing cancellation. Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing, pages 2161--2164, 1987.