SLICING - Cut a signal into uniform slices with half-overlap
Usage
f_sliced = slicing(f,sl_len,tr_area,Ls) f_sliced = slicing(f,sl_len,tr_area)
Input parameters
| f | Signal to be sliced |
| sl_len | Slice length (in samples, must be even) |
| tr_area | Length of each transition area (in samples, optional, default is \(ceil( sl\_len/16 )\) ) |
| Ls | Length of f (optional) |
Output parameters
| f_sliced | Matrix containing the slices of f as columns |
| sl_len | Possibly corrected slice length (in samples, even) |
| tr_area | Possibly corrected transition area length (in samples, even) |
Description
This function cuts a signal into compactly supported pieces of length sl_len using a uniform partition of unity composed of Tukey windows with plateau area \(sl\_len/2-tr\_area\) and transition areas of length tr_area. The resulting signal slices are stored in the columns of the output.
References:
N. Holighaus, M. Dörfler, G. Velasco, and T. Grill. A framework for invertible, real-time constant-q transforms. Audio, Speech, and Language Processing, IEEE Transactions on, 21(4):775-785, April 2013. [ DOI ]