NAME

edwave - Edit a given range of a wave.

CONTENTS

Syntax
Description
Options
Copyright

edwave [options] [filename]

Editing operations extract or delete a given time range of a given wave,and the results are written on the stdout.

1. range.

The range option specifies the stretch of the wave for the editing operationby:

            range=a[-b]

The upper limit ‘b’ is optional, and when it is missing then the rangeis a single sample of the given type, otherwise ‘a’ and ‘b’ are inclusive range limits.The strings "min" and "max" are recognised as extreme limits("min" = start of file, "max" = end of file),otherwise the values of ‘a’ and ‘b’ are sample numbers: 0,1,2,...Values given with time units (ms or s) are converted to samples usingthe given samplerate option.

2. operation.

The ‘operation’ option sets the edit operation to either:

            operation=extractor            operation=delete

The extract operation outputs the part of the input which is inclusivelywithin the given range.The delete operation outputs the part of the input which is NOT inclusivelywithin the given range.

3. type.

The datatype of input and output. Known types are in the list:char, short, int, float, double, ascii. The ascii type is interpreted as onesample per line.

4. size.

Print the size of the wave on the stdout in given units.Units are seconds ("size=s"), milliseconds ("size=ms"), or samples ("size=on").Sizes in time units are calculated using the given ‘samplerate’ option.

options bufwave

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.

The MRC makes no representations about the suitability of thissoftware for any purpose. It is provided "as is" without express orimplied warranty.

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