Jw at 08:53, 16 November 2015

2015-11-16T08:53:26Z

← Older revision		Revision as of 10:53, 16 November 2015
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	:RES1[*,i] - the RMS energy track of band i (=0..<var>M</var>-1) in dB.		:RES1[*,i] - the RMS energy track of band i (=0..<var>M</var>-1) in dB.

			;See also:
			<[[../#Signal Processing Atoms\|SP-atoms]]>
			<!-- AN, 2.5.2011 -->

Toni: moved Programmer Guide/SPU Reference/ADSET2 - compute rms tracks of 3rd octave bands to Programmer Guide/SPU Reference/ADSET2

2011-04-28T09:22:32Z

moved Programmer Guide/SPU Reference/ADSET2 - compute rms tracks of 3rd octave bands to Programmer Guide/SPU Reference/ADSET2

← Older revision	Revision as of 11:22, 28 April 2011
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Admin: 1 revision: Initial import

2010-11-18T16:31:56Z

1 revision: Initial import

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193.171.195.8: initial import

2010-05-17T13:05:27Z

initial import

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====ADSET2 - compute rms tracks of 3rd octave bands====

For each spectrum the RMS energy of the <var>M</var> bands is computed and stored in the output array. If <var>HTH</var> equals <code>1</code>, the hearing threshold is applied to spectrum before the energies are computed. The boundary frequencies of the bands are defined by the inputs <var>FMIN</var> and <var>TYPE</var> and the band index i (=0..M-1).

Where <var>TYPE</var>=<code>0</code>:

<code>flowi =</code> <var>FMIN</var> <code>* q^i</code>, <code>fhighi =</code> <var>FMIN</var> <code>* q^(i+1); q = 2^(1/3)</code>

Where <var>TYPE</var>=1:

<code>flowi = Bark2Hertz(</code><var>FMIN</var> <code>+ i)</code>, <code>fhighi = Bark2Hertz(</code><var>FMIN</var> <code>+ i+1)</code>

This SPAtom was developed for the NOIDESc project in 2006.

=====Usage:=====

<code>ADSET2 <var>N</var> <var>A</var> <var>AREF</var> <var>HTH</var> <var>DF</var> <var>FMIN</var> <var>M</var> <var>TYPE</var></code>

=====Inputs:=====

;<var>N</var>

:The number of output vectors (frames) .

;<var>A</var>

:The fft amplitude spectrum (linear).

;<var>AREF</var>

:The reference amplitude (linear).

;<var>HTH</var>

:Apply the hearing threshold (<code>0</code>=no, <code>1</code>=yes).

;<var>DF</var>

:The fft frequency resolution in Hz.

;<var>FMIN</var>

:The lower boundary of the 1st band in Hertz (if <var>TYPE</var>=<code>0</code>) or Bark (if <var>TYPE</var>=<code>1</code>)

;<var>M</var>

:The number of bands.

;<var>TYPE</var>

:The type of bands: <code>0</code> = 1/3 octave, <code>1</code> = Bark.

=====Outputs:=====

;<var>RES1</var>

:The output array (<var>N</var> x <var>M</var>) containing the computed RMS values.

:RES1[*,i] - the RMS energy track of band i (=0..<var>M</var>-1) in dB.

Programmer Guide/SPU Reference/ADSET2 - Revision history

Jw at 08:53, 16 November 2015

Toni: moved Programmer Guide/SPU Reference/ADSET2 - compute rms tracks of 3rd octave bands to Programmer Guide/SPU Reference/ADSET2

Admin: 1 revision: Initial import

193.171.195.8: initial import