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cosine


Manual Reference Pages  - COSINE (1)

NAME

cosine - generate a cosine window.

CONTENTS

Syntax
Description
Options
Copyright

SYNTAX

cosine [options]

DESCRIPTION

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

OPTIONS

1. size

The size of the window can be given with time units (ms or s) or samples (no units). 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").

SEE ALSO

options gauss

COPYRIGHT

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

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

The MRC makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.


SunOS 5.6 COSINE (1) 1 September 1993
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