ATSread
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## ATSread

ATSread — reads data from an ATS file.

## Description

ATSread returns the amplitude (kamp) and frequency (kfreq) information of a user specified partial contained in the ATS analysis file at the time indicated by the time pointer ktimepnt.

## Syntax

    kfreq, kamp ATSread ktimepnt, iatsfile, ipartial

## Initialization

iatsfile – the ATS number (n in ats.n) or the name in quotes of the analysis file made using ATS.

ipartial – the number of the analysis partial to return the frequency in Hz and amplitude.

## Performance

kfreq, kamp - outputs of the ATSread unit. These values represent the frequency and amplitude of a specific partial selected by the user using ipartial. The partials' informations are derived from an ATS analysis. ATSread linearly interpolates the frequency and amplitude between frames in the ATS analysis file at k-rate. The output is dependent on the data in the analysis file and the pointer ktimepnt.

ktimepnt – The time pointer in seconds used to index the ATS file. Used for ATSread exactly the same as for pvoc and ATSadd.

## Examples

      ktime	line  0, p3, 2.5
      kfreq, kamp	atsread	ktime, "clarinet.ats", 2
      aout	oscili	1000000 * kamp, kfreq, 1

Here we're using ATSread to get the 2nd partial's frequency and amplitude data out of the 'clarinet.ats' ATS analysis file. We're using that data to drive an oscillator, but we could use it for anything else that can take a k-rate input, like the bandwidth and resonance of a filter etc.

## See also

ATSreadnz, ATSinfo, ATSbufread, ATScross, ATSinterpread, ATSpartialtap, ATSadd, ATSaddnz, ATSsinnoi

## Credits

Author: Alex Norman
Seattle,Washington
2004

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