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VowelSample Class Reference

#include <VowelSample.h>

Collaboration diagram for VowelSample:

[legend]List of all members.

Public Member Functions
	VowelSample (bool record=false)
	~VowelSample (void)
bool	open (const char *filename, AudioPreprocessing &prep_template)
	VowelSample (VowelSample &source)
void	setCorrectVowel (VowelSampleType type)
bool	saveRawSample (const char *filename=0)
bool	isValidUserInformation (void)
Public Attributes
VowelSampleType	type_correct
vector< double >	sample
vector< double >	fft_energy
char *	filename
AUFile *	raw
Private Member Functions
bool	convertUserinfoToC (void)
void	convertCtoUserinfo (void)
Private Attributes
bool	info_success
VowelSampleInformation	info

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Detailed Description

Representation of one vowel.

Used from the VowelSet class. Does the handling of audio files from the raw audio data to the neural network input.

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Constructor & Destructor Documentation

VowelSample::VowelSample (  bool    record = false )

Standard constructor. Parameters: record  When set to true, the VowelSample object is prepared for recording, i.e. its raw member is initialized.

VowelSample::~VowelSample (  void    )

Basic destructor.

VowelSample::VowelSample (  VowelSample &    source )

Copy constructor.

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Member Function Documentation

void VowelSample::convertCtoUserinfo (  void    )  [private]

Convert the class elements into the packed 'info' structure.

bool VowelSample::convertUserinfoToC (  void    )  [private]

Convert the user information within the 'info' structure to the corresponding class elements. Returns: True on success, false on failure.

bool VowelSample::isValidUserInformation (  void    )  [inline]

Getter for the user information structure success. Returns: True when there was a userinfo structure in the file, false if there was none.

bool VowelSample::open (  const char *    filename, AudioPreprocessing &    prep_template )

Open an audio file Convert raw data raw using the audio preprocessor prep_template as processing template. All the conversion is done using the active settings of the template. Also extract the raw information structure stored with the AU file into a C level structure (VowelSampleInformation). Parameters: filename  The raw audio input filename. prep_template  The conversion template which transforms the raw data into a windows energy vector. Returns: True on success, false on failure.

bool VowelSample::saveRawSample (  const char *    filename = 0 )

Save the raw data back to an AU file. Parameters: filename  When non-zero, the filename the AU file will be written to. When zero, the original filename is used. Returns: True when the operation was successful, otherwise false.

void VowelSample::setCorrectVowel (  VowelSampleType    type )

Set the correct vowel type for this sample. Parameters: type  The correct vowel for this sample.

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Member Data Documentation

vector<double> VowelSample::fft_energy

The FFT energy array, showing the frequency based amplitude energy for the input sample.

char* VowelSample::filename

The original AU filename that produced the sample.

VowelSampleInformation VowelSample::info [private]

Userdata part of the AU file converted to a real structure. Only used temporarily, no real processing takes place here except conversion before and after AUFile read/write operations.

bool VowelSample::info_success [private]

Flag, when true there is valid userdata.

AUFile* VowelSample::raw

The original AU file associated with this sample. Warning: can be NULL.

vector<double> VowelSample::sample

The processed audio sample. Stored as windows vectors of energy levels in the frequency windows.

VowelSampleType VowelSample::type_correct

The correct type of vowel this sample represents. In case the vowel should be determined or is otherwise unknown, it can be set to 'unknown'.

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

• VowelSample.h
• VowelSample.cpp

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