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Processing
Analysis
MelFilterBank.hxx
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/*
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* Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
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* UNIVERSITAT POMPEU FABRA
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __MELFILTERBANK__
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#define __MELFILTERBANK__
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#include "
Processing.hxx
"
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#include "
Spectrum.hxx
"
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#include "
MelSpectrum.hxx
"
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#include "
Array.hxx
"
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#include "
InPort.hxx
"
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#include "
OutPort.hxx
"
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namespace
CLAM
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{
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class
MelFilterBankConfig
:
public
ProcessingConfig
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{
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public
:
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DYNAMIC_TYPE_USING_INTERFACE
(
MelFilterBankConfig
, 6,
ProcessingConfig
);
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DYN_ATTRIBUTE
( 0,
public
,
TSize
, SpectrumSize );
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DYN_ATTRIBUTE
( 1,
public
,
TData
, SpectralRange );
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DYN_ATTRIBUTE
( 2,
public
,
TData
, LowCutoff );
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DYN_ATTRIBUTE
( 3,
public
,
TData
, HighCutoff );
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DYN_ATTRIBUTE
( 4,
public
,
TSize
, NumBands );
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DYN_ATTRIBUTE
( 5,
public
,
bool
, UsePower );
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protected
:
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void
DefaultInit
();
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};
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class
MelFilterBank
:
public
Processing
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{
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public
:
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MelFilterBank
();
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MelFilterBank
(
const
MelFilterBankConfig
& );
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~MelFilterBank
();
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bool
Do
();
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bool
Do
(
const
Spectrum
& s,
MelSpectrum
& ms );
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const
ProcessingConfig
&
GetConfig
()
const
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{
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return
mConfig;
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}
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virtual
const
char
*
GetClassName
()
const
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{
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return
"MelFilterBank"
;
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}
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protected
:
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virtual
bool
ConcreteConfigure
(
const
ProcessingConfig
& cfg );
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protected
:
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TData
Mel
(
TData
linFreq );
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void
InitializeTables
();
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private
:
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MelFilterBankConfig
mConfig;
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Array<TIndex>
mMelBand;
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DataArray
mFilterWeights;
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TIndex
mLowIdx;
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TIndex
mHighIdx;
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InPort<Spectrum>
mIn;
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OutPort<MelSpectrum>
mOut;
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};
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}
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#endif // MelFilterBank.hxx
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