NAME

cosine - generate a cosine window.

CONTENTS

Syntax
Description
Options
Copyright

cosine [options]

Generate a cosine window on the stdout in binary shorts or floats fora given size.

1. size

The size of the window can be given with time units (ms or s) or samples (nounits). Time units are converted to samples using the given‘samplerate’ option.

2. Hamming

The default ("Hamming=off") is a Hann or raised cosine window:

        w[n] = 0.5 [ 1 - cos( TWOPI . n/(N-1) ) ]

The "Hamming=on" window is:

        w[n] = 0.54 - 0.46 cos( TWOPI . n/(N-1) )

Both windows are defined for 0 <= n <= N-1 and are assumed to be zero otherwise.

3. scale

A scale factor for the output.

4. type

Output datatype ("type=short" or "type=float").

options gauss

Copyright (c) Applied Psychology Unit, Medical Research Council, 1995

Permission to use, copy, modify, and distribute this software without feeis hereby granted for research purposes, provided that this copyrightnotice appears in all copies and in all supporting documentation, and thatthe software is not redistributed for any fee (except for a nominalshipping charge). Anyone wanting to incorporate all or part of thissoftware in a commercial product must obtain a license from the MedicalResearch Council.

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