vincr
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## vincr

vincr — Accumulates audio signals.

## Description

vincr increments one audio variable with another signal, i.e. it accumulates output.

## Syntax

    vincr accum, aincr

## Performance

accum -- audio-rate accumulator variable to be incremented

aincr -- incrementing signal

vincr (variable increment) and clear are intended to be used together. vincr stores the result of the sum of two audio variables into the first variable itself (which is intended to be used as an accumulator in polyphony). The accumulator is typically a global variable that is used to combine signals from several sources (different instruments or instrument instances) for further processing (for example, via a global effect that reads the accumulator) or for outputting the combined signal by some means other than one of the out opcodes (eg. via the fout opcode). After the accumulator is used, the accumulator variable should be set to zero by means of the clear opcode (or it will explode).

## Examples

See the fout opcode for an example.

## See Also

clear

## Credits

Author: Gabriel Maldonado
Italy
1999

New in Csound version 3.56

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