csl::LPCAnalyzer Class Reference

#include <LPC.h>

Inheritance diagram for csl::LPCAnalyzer:

List of all members.

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Detailed Description

LPCAnalyzer class takes LPC analysis and returns coefficients and the residual It can write these to two files (if you set the file names), or signal its observers (who would grab its internal state via the getter methods)

Public Member Functions
	LPCAnalyzer (UnitGenerator &in, unsigned size=CGestalt::blockSize(), unsigned hopSize=CGestalt::blockSize(), unsigned order=50)
	Forward FFT = analysis.
	~LPCAnalyzer ()
unsigned	windowSize ()
	no setters
unsigned	hopSize ()
unsigned	LPCOrder ()
Buffer	getCoefficients ()
Buffer	getResidual ()
double	getError ()
void	setFileNames (char *coeff, char *resid)
	set the file names and open the files
void	setPreEmphasis (double factor)
void	setBWExpansion (double factor)
void	closeFiles ()
	close the files
void	setOverwrite (bool reuse)
void	setUseWindow (bool use)
	analyze a buffer, write it out if the files are set, then signal your observers
void	nextBuffer (Buffer &outputBuffer, unsigned outBufNum) throw (CException)
Protected Attributes
unsigned	mWindowSize
	input window size
unsigned	mHopSize
	input hop size
unsigned	mLPCOrder
	LPC order.
double	mPredErr
	LPC pred.error.
double	mPreEmphasis
	LPC pre-emph factor.
double	mBWExpansion
	LPC bandwidth expansion factor.
bool	mOverwriteOutput
	whether to replace the output with the input (or the residual) after signalling observers
bool	mUseWindow
Buffer	mTempBuffer
	Protected buffers and analysis objects the input buffer.
Buffer	mWindowBuffer
	Buffer to store window.
Buffer	mLPCCoefficients
	the LPC reflection coefficients
Buffer	mFilterCoefficients
	the LPC filter coefficients
Buffer	mFilterInput
	the LPC filter input store
Buffer	mPCCoefficients
	the LPC PC coefficients
Buffer	mLPCResidual
	the LPC residual
RingBuffer	mRing
Butter *	mLoPass
	Filters and FFT for analysis low-pass filter.
Butter *	mHiPass
	hi-pass filter
FFT *	mFFT
	FFT for pitch est.
FILE *	mCoeffFile
	file ptr for the coefficient file
SoundFile *	mResidFile
	sound file for the residual file

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Constructor & Destructor Documentation

LPCAnalyzer::LPCAnalyzer (  UnitGenerator &  in, unsigned  size = CGestalt::blockSize(), unsigned  hopSize = CGestalt::blockSize(), unsigned  order = 50 )

Forward FFT = analysis.

LPCAnalyzer::~LPCAnalyzer (   )

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Member Function Documentation

unsigned csl::LPCAnalyzer::windowSize (   )  [inline]

no setters

unsigned csl::LPCAnalyzer::hopSize (   )  [inline]

unsigned csl::LPCAnalyzer::LPCOrder (   )  [inline]

Buffer csl::LPCAnalyzer::getCoefficients (   )  [inline]

Buffer csl::LPCAnalyzer::getResidual (   )  [inline]

double csl::LPCAnalyzer::getError (   )  [inline]

void LPCAnalyzer::setFileNames (  char *  coeff, char *  resid )

set the file names and open the files

void csl::LPCAnalyzer::setPreEmphasis (  double  factor  )  [inline]

void csl::LPCAnalyzer::setBWExpansion (  double  factor  )  [inline]

void LPCAnalyzer::closeFiles (   )

close the files

void csl::LPCAnalyzer::setOverwrite (  bool  reuse  )  [inline]

void csl::LPCAnalyzer::setUseWindow (  bool  use  )  [inline]

analyze a buffer, write it out if the files are set, then signal your observers

void LPCAnalyzer::nextBuffer (  Buffer &  outputBuffer, unsigned  outBufNum )  throw (CException)

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Member Data Documentation

unsigned csl::LPCAnalyzer::mWindowSize [protected]

input window size

unsigned csl::LPCAnalyzer::mHopSize [protected]

input hop size

unsigned csl::LPCAnalyzer::mLPCOrder [protected]

LPC order.

double csl::LPCAnalyzer::mPredErr [protected]

LPC pred.error.

double csl::LPCAnalyzer::mPreEmphasis [protected]

LPC pre-emph factor.

double csl::LPCAnalyzer::mBWExpansion [protected]

LPC bandwidth expansion factor.

bool csl::LPCAnalyzer::mOverwriteOutput [protected]

whether to replace the output with the input (or the residual) after signalling observers

bool csl::LPCAnalyzer::mUseWindow [protected]

whether to use a rectangular or Hamming window

Buffer csl::LPCAnalyzer::mTempBuffer [protected]

Protected buffers and analysis objects the input buffer.

Buffer csl::LPCAnalyzer::mWindowBuffer [protected]

Buffer to store window.

Buffer csl::LPCAnalyzer::mLPCCoefficients [protected]

the LPC reflection coefficients

Buffer csl::LPCAnalyzer::mFilterCoefficients [protected]

the LPC filter coefficients

Buffer csl::LPCAnalyzer::mFilterInput [protected]

the LPC filter input store

Buffer csl::LPCAnalyzer::mPCCoefficients [protected]

the LPC PC coefficients

Buffer csl::LPCAnalyzer::mLPCResidual [protected]

the LPC residual

RingBuffer csl::LPCAnalyzer::mRing [protected]

used for the analysis UGens

Butter* csl::LPCAnalyzer::mLoPass [protected]

Filters and FFT for analysis low-pass filter.

Butter* csl::LPCAnalyzer::mHiPass [protected]

hi-pass filter

FFT* csl::LPCAnalyzer::mFFT [protected]

FFT for pitch est.

FILE* csl::LPCAnalyzer::mCoeffFile [protected]

file ptr for the coefficient file

SoundFile* csl::LPCAnalyzer::mResidFile [protected]

sound file for the residual file

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The documentation for this class was generated from the following files:

• CSL/Processors/OLD/LPC.h
• CSL/Processors/OLD/LPC.cpp

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