clear
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## clear

clear — Zeroes a list of audio signals.

## Description

clear zeroes a list of audio signals.

## Syntax

    clear avar1 [, avar2] [, avar3] [...]

## Performance

avar1, avar2, avar3, ... -- signals to be zeroed

clear sets every sample of each of the given audio signals to zero when it is performed. This is equivalent to writing avarN = 0 in the orchestra for each of the specified variables. Typically, clear is used with global variables that combine multiple signals from different sources and change with each k-pass (performance loop) through all of the active instrument instances. After the final usage of such a variable and before the next k-pass, it is necessary to clear the variable so that it does not add the next cycle's signals to the previous result. clear is especially useful in combination with vincr (variable increment) and they are intended to be used together with file output opcodes such as fout.

## Examples

See the fout opcode for an example.

## See Also

vincr

## Credits

Author: Gabriel Maldonado
Italy
1999

New in Csound version 3.56

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