AudioRecorderForQt Class Reference

#include <audiorecorderforqt.h>

Inheritance diagram for AudioRecorderForQt:

Collaboration diagram for AudioRecorderForQt:

Public Slots
void	onReadPacket ()

Public Member Functions
	AudioRecorderForQt (QObject *parent)
virtual	~AudioRecorderForQt ()
void	init () override
	Inizialize the audio device. More...
void	exit () override
	Destroy the audio device. More...
void	start () override
	Start/restart the audio device. More...
void	stop () override
	Stop the audio device. More...
virtual void	setDeviceInputGain (double volume) overridefinal
virtual double	getDeviceInputGain () const overridefinal
Public Member Functions inherited from AudioRecorderAdapter
	AudioRecorderAdapter ()
	Constructor. More...
virtual	~AudioRecorderAdapter ()
	Empty destructor. More...
void	resetInputLevelControl ()
	Reset input level control. More...
void	setMuted (bool muted)
	Set and reset the muting flag. More...
void	readAll (PacketType &packet)
	Read all data from the internal buffer. More...
void	cutSilence (PacketType &packet)
	Cut trailing silence. More...
double	getStopLevel () const
void	setStandby (bool flag)
void	setWaitingFlag (bool flag)
Stroboscope *	getStroboscope ()
Public Member Functions inherited from AudioBase
	AudioBase ()
	Constructor. More...
virtual	~AudioBase ()
	Destructor (no functionality). More...
const std::string &	getDeviceName () const
	Get a readable string of the name of the audio device. More...
void	setDeviceName (const std::string &n)
	Set the device name. More...
int	getSamplingRate () const
	Get the actual sampling rate. More...
int	getChannelCount () const
	Get the actual number of channels (1=mono, 2=stereo). More...
virtual void	setChannelCount (int cnt)
	Set the number of channels (1=mono, 2=stereo). More...

Private Types
typedef int16_t	DataFormat
	Data format of the input/output stream. More...

Private Attributes
QAudioInput *	mAudioInput
QIODevice *	mIODevice
QTimer	mReadTimer

Static Private Attributes
static const DataFormat	SIGNAL_SCALING = std::numeric_limits<AudioRecorderForQt::DataFormat>::max()
	maximal alloed value of the stream More...

Additional Inherited Members
Public Types inherited from AudioBase
typedef double	PCMDataType
typedef std::vector< PCMDataType >	PacketType
	Type definition of a PCM packet (vector of PCM values). More...
Static Public Attributes inherited from AudioRecorderAdapter
static const int	BUFFER_SIZE_IN_SECONDS = 2
	Capacity of the local circular audio buffer in seconds. More...
static const int	UPDATE_IN_MILLISECONDS = 50
	Update interval in milliseconds, defining the packet size. More...
static const double	ATTACKRATE = 0.97
	Attack rate at which the sliding level goes up (1=instantly). More...
static const double	DECAYRATE = 0.7
	Decay rate at which the sliding level goes down. More...
static const double	LEVEL_RETRIGGER = 0.3
	Level below which retriggering (restart) is allowed. More...
static const double	LEVEL_TRIGGER = 0.48
	Level above which the recorder starts to operate. More...
static const double	LEVEL_CUTOFF = 0.9
	Level above which the input mGain is automatically reduced. More...
static const double	DB_OFF = 2
	dB shift for off mark (high value = shorter recording) More...
Protected Member Functions inherited from AudioRecorderAdapter
void	pushRawData (const PacketType &data)
	The implementation calls this function when new data is available. More...
void	setSamplingRate (int rate) override

Detailed Description

Definition at line 28 of file audiorecorderforqt.h.

Member Typedef Documentation

typedef int16_t AudioRecorderForQt::DataFormat

private

Data format of the input/output stream.

Definition at line 40 of file audiorecorderforqt.h.

Constructor & Destructor Documentation

AudioRecorderForQt::AudioRecorderForQt

(

QObject *

parent

)

Definition at line 31 of file audiorecorderforqt.cpp.

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AudioRecorderForQt::~AudioRecorderForQt ( )

virtual

Definition at line 40 of file audiorecorderforqt.cpp.

Member Function Documentation

void AudioRecorderForQt::exit ( )

overridevirtual

Destroy the audio device.

Implements AudioBase.

Definition at line 107 of file audiorecorderforqt.cpp.

double AudioRecorderForQt::getDeviceInputGain ( ) const

finaloverridevirtual

Implements AudioRecorderAdapter.

Definition at line 152 of file audiorecorderforqt.cpp.

void AudioRecorderForQt::init ( )

overridevirtual

Inizialize the audio device.

Implements AudioBase.

Definition at line 45 of file audiorecorderforqt.cpp.

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void AudioRecorderForQt::onReadPacket ( )

slot

Definition at line 159 of file audiorecorderforqt.cpp.

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void AudioRecorderForQt::setDeviceInputGain ( double  volume )

finaloverridevirtual

Implements AudioRecorderAdapter.

Definition at line 146 of file audiorecorderforqt.cpp.

void AudioRecorderForQt::start ( )

overridevirtual

Start/restart the audio device.

Implements AudioBase.

Definition at line 122 of file audiorecorderforqt.cpp.

void AudioRecorderForQt::stop ( )

overridevirtual

Stop the audio device.

Implements AudioBase.

Definition at line 135 of file audiorecorderforqt.cpp.

Member Data Documentation

QAudioInput* AudioRecorderForQt::mAudioInput

private

Definition at line 60 of file audiorecorderforqt.h.

QIODevice* AudioRecorderForQt::mIODevice

private

Definition at line 61 of file audiorecorderforqt.h.

QTimer AudioRecorderForQt::mReadTimer

private

Definition at line 62 of file audiorecorderforqt.h.

const AudioRecorderForQt::DataFormat AudioRecorderForQt::SIGNAL_SCALING = std::numeric_limits<AudioRecorderForQt::DataFormat>::max()

staticprivate

maximal alloed value of the stream

Definition at line 42 of file audiorecorderforqt.h.

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

• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/Qt/audioforqt/audiorecorderforqt.h
• /home/hinrichsen/Dokumente/Aktuell/EPT/Entropy-Piano-Tuner/Qt/audioforqt/audiorecorderforqt.cpp