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update qm-dsp library

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This commit is contained in:
Robin Gareus 2016-10-06 00:16:44 +02:00
parent 2a27cc4758
commit f68d2e06bc
100 changed files with 58968 additions and 55091 deletions
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35
libs/qm-dsp/dsp/signalconditioning/DFProcess.cpp
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@ -6,6 +6,14 @@
Centre for Digital Music, Queen Mary, University of London.
This file 2005-2006 Christian Landone.
Modifications:
- delta threshold
Description: add delta threshold used as offset in the smoothed
detection function
Author: Mathieu Barthet
Date: June 2010
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
@ -25,7 +33,7 @@
DFProcess::DFProcess( DFProcConfig Config )
{
filtSrc = NULL;
filtDst = NULL;
filtDst = NULL;
m_filtScratchIn = NULL;
m_filtScratchOut = NULL;
@ -51,13 +59,16 @@ void DFProcess::initialise( DFProcConfig Config )
filtSrc = new double[ m_length ];
filtDst = new double[ m_length ];
//Low Pass Smoothing Filter Config
m_FilterConfigParams.ord = Config.LPOrd;
m_FilterConfigParams.ACoeffs = Config.LPACoeffs;
m_FilterConfigParams.BCoeffs = Config.LPBCoeffs;
m_FiltFilt = new FiltFilt( m_FilterConfigParams );
//add delta threshold
m_delta = Config.delta;
}
void DFProcess::deInitialise()
@ -115,7 +126,7 @@ void DFProcess::medianFilter(double *src, double *dst)
{
if (index >= m_length) break;
l = 0;
for( j = i; j < ( i + m_winPost + m_winPre + 1); j++)
{
@ -139,15 +150,17 @@ void DFProcess::medianFilter(double *src, double *dst)
l++;
}
scratch[ index++ ] = MathUtilities::median( y, l);
scratch[ index++ ] = MathUtilities::median( y, l);
}
for( i = 0; i < m_length; i++ )
{
val = src[ i ] - scratch[ i ];// - 0.033;
//add a delta threshold used as an offset when computing the smoothed detection function
//(helps to discard noise when detecting peaks)
val = src[ i ] - scratch[ i ] - m_delta;
if( m_isMedianPositive )
{
if( val > 0 )
@ -164,7 +177,7 @@ void DFProcess::medianFilter(double *src, double *dst)
dst[ i ] = val;
}
}
delete [] y;
delete [] scratch;
}
@ -180,8 +193,8 @@ void DFProcess::removeDCNormalize( double *src, double*dst )
MathUtilities::getAlphaNorm( src, m_length, m_alphaNormParam, &DFAlphaNorm );
for(int i = 0; i< m_length; i++)
for( unsigned int i = 0; i< m_length; i++)
{
dst[ i ] = ( src[ i ] - DFMin ) / DFAlphaNorm;
dst[ i ] = ( src[ i ] - DFMin ) / DFAlphaNorm;
}
}