Apply Whisper FFT Effect on frequency domain data: keep the magnitude of each bin but randomize its phase. See https://learn.bela.io/tutorials/c-plus-plus-for-real-time-audio-programming/phase-vocoder-part-3/. More...

#include <FFTEffects.h>

Inheritance diagram for FFTWhisper:

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Collaboration diagram for FFTWhisper:

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Public Member Functions
	FFTWhisper (AudioOutput &out)

	FFTWhisper (AudioOutput &out, AudioFFTBase &fft)

	FFTWhisper (AudioStream &out)

	FFTWhisper (AudioStream &out, AudioFFTBase &fft)

	FFTWhisper (Print &out)

	FFTWhisper (Print &out, AudioFFTBase &fft)

virtual void	addNotifyAudioChange (AudioInfoSupport &bi)
	Adds target to be notified about audio changes.

virtual AudioInfo	audioInfo () override
	provides the actual input AudioInfo

virtual AudioInfo	audioInfoOut ()

virtual int	availableForWrite () override

bool	begin () override

virtual bool	begin (AudioInfo info)

bool	begin (FFTEffectConfig info)

virtual void	clearNotifyAudioChange ()
	Deletes all change notify subscriptions.

FFTEffectConfig	defaultConfig ()

virtual void	end ()

virtual void	flush ()

virtual bool	isDeletable ()
	If true we need to release the related memory in the destructor.

bool	isNotifyActive ()
	Checks if the automatic AudioInfo update is active.

virtual	operator bool ()

virtual bool	removeNotifyAudioChange (AudioInfoSupport &bi)
	Removes a target in order not to be notified about audio changes.

virtual void	setAudioInfo (AudioInfo newInfo) override
	Defines the input AudioInfo.

void	setNotifyActive (bool flag)
	Deactivate/Reactivate automatic AudioInfo updates: (default is active)

size_t	write (const uint8_t *data, size_t len) override

virtual size_t	write (uint8_t ch) override

virtual void	writeSilence (size_t len)

Protected Member Functions
void	effect (AudioFFTBase &fft) override
	Whisperize the output.

void	notifyAudioChange (AudioInfo info)

void	processOutput ()

Static Protected Member Functions
static void	effect_callback (AudioFFTBase &fft)

Protected Attributes
int	_timeout = 10

BufferedWindow	buffered {&hann}

AudioInfo	cfg

StreamCopy	copier

AudioRealFFT	default_fft

AudioFFTConfig	fft_cfg {default_fft.defaultConfig(RXTX_MODE)}

Hann	hann

bool	is_active = false

bool	is_notify_active = true

Vector< AudioInfoSupport * >	notify_vector

AudioFFTBase *	p_fft = nullptr

Print *	p_out = nullptr

SingleBuffer< uint8_t >	tmp {MAX_SINGLE_CHARS}

int	tmpPos = 0

Detailed Description

Apply Whisper FFT Effect on frequency domain data: keep the magnitude of each bin but randomize its phase. See https://learn.bela.io/tutorials/c-plus-plus-for-real-time-audio-programming/phase-vocoder-part-3/.

Author: phil schatzmann

Constructor & Destructor Documentation

◆ FFTWhisper() [1/6]

FFTWhisper ( AudioStream & out )

inline

◆ FFTWhisper() [2/6]

FFTWhisper	(	AudioStream &	out,
		AudioFFTBase &	fft
	)

inline

◆ FFTWhisper() [3/6]

FFTWhisper ( AudioOutput & out )

inline

◆ FFTWhisper() [4/6]

FFTWhisper	(	AudioOutput &	out,
		AudioFFTBase &	fft
	)

inline

◆ FFTWhisper() [5/6]

FFTWhisper ( Print & out )

inline

◆ FFTWhisper() [6/6]

FFTWhisper	(	Print &	out,
		AudioFFTBase &	fft
	)

inline

Member Function Documentation

◆ addNotifyAudioChange()

virtual void addNotifyAudioChange ( AudioInfoSupport & bi )

inlinevirtualinherited

Adds target to be notified about audio changes.

Reimplemented in CodecNOP, EncodedAudioOutput, EncodedAudioStream, AACDecoderFDK, DecoderBasic, CodecChain, MP3DecoderHelix, MP3DecoderMAD, OggContainerDecoder, RTSPClient< TcpClient, UdpSocket >, Pipeline, and Pipeline::ModifyingStreamAdapter.

◆ audioInfo()

virtual AudioInfo audioInfo ( )

inlineoverridevirtualinherited

provides the actual input AudioInfo

Implements AudioInfoSupport.

Reimplemented in AdapterPrintToAudioOutput, EncodedAudioOutput, and AdapterAudioStreamToAudioOutput.

◆ audioInfoOut()

virtual AudioInfo audioInfoOut ( )

inlinevirtualinherited

provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream

Reimplemented in MP3EncoderShine, PureDataStream, PWMAudioOutput< PWMDriverT >, ChannelFormatConverterStreamT< T >, ChannelFormatConverterStream, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, FormatConverterStream, Pipeline, ResampleStream, ResampleStreamT< TInterpolator >, and SupportedRatesStream.

◆ availableForWrite()

virtual int availableForWrite ( )

inlineoverridevirtualinherited

Reimplemented from Print.

Reimplemented in AudioESP32ULP, RTSPOutput< Platform >, SPIAudioMaster, EncodedAudioOutput, AudioServerEx, AudioSyncWriter, SPIRegAudioMaster, AdapterAudioStreamToAudioOutput, CsvOutput< T >, MemoryOutput, and PWMAudioOutput< PWMDriverT >.

◆ begin() [1/3]

bool begin ( )

inlineoverridevirtualinherited

Reimplemented from AudioOutput.

Reimplemented in FFTPitchShift, and FFTEqualizer.

◆ begin() [2/3]

virtual bool begin ( AudioInfo info )

inlinevirtualinherited

Reimplemented in AudioESP32ULP, RTSPOutput< Platform >, RTTTLOutput< T >, ChannelsSelectOutput, CsvOutput< T >, and EncodedAudioOutput.

◆ begin() [3/3]

bool begin ( FFTEffectConfig info )

inlineinherited

◆ clearNotifyAudioChange()

virtual void clearNotifyAudioChange ( )

inlinevirtualinherited

Deletes all change notify subscriptions.

Reimplemented in RTSPClient< TcpClient, UdpSocket >.

◆ defaultConfig()

FFTEffectConfig defaultConfig ( )

inlineinherited

◆ effect()

void effect ( AudioFFTBase & fft )

inlineoverrideprotectedvirtual

Whisperize the output.

Implements FFTEffect.

◆ effect_callback()

static void effect_callback ( AudioFFTBase & fft )

inlinestaticprotectedinherited

◆ end()

virtual void end ( )

inlinevirtualinherited

Reimplemented in AudioESP32ULP, AudioServerEx, AudioSyncWriter, RTSPOutput< Platform >, SPIAudioMaster, SPIRegAudioMaster, PitchShiftOutput< T, BufferT >, MetaDataOutput, EncodedAudioOutput, OpusOggWriter, OggContainerOutput, AdapterAudioStreamToAudioOutput, MetaDataFilter, and PWMAudioOutput< PWMDriverT >.

◆ flush()

virtual void flush ( )

inlinevirtualinherited

Reimplemented from Print.

Reimplemented in MultiOutput, and HexDumpOutput.

◆ isDeletable()

virtual bool isDeletable ( )

inlinevirtualinherited

If true we need to release the related memory in the destructor.

Reimplemented in AdapterPrintToAudioOutput, and AdapterAudioStreamToAudioOutput.

◆ isNotifyActive()

bool isNotifyActive ( )

inlineinherited

Checks if the automatic AudioInfo update is active.

◆ notifyAudioChange()

void notifyAudioChange ( AudioInfo info )

inlineprotectedinherited

◆ operator bool()

virtual operator bool ( )

inlinevirtualinherited

Reimplemented in RTSPOutput< Platform >, EncodedAudioOutput, and AdapterAudioStreamToAudioOutput.

◆ processOutput()

void processOutput ( )

inlineprotectedinherited

◆ removeNotifyAudioChange()

virtual bool removeNotifyAudioChange ( AudioInfoSupport & bi )

inlinevirtualinherited

Removes a target in order not to be notified about audio changes.

Reimplemented in RTSPClient< TcpClient, UdpSocket >.

◆ setAudioInfo()

virtual void setAudioInfo ( AudioInfo info )

inlineoverridevirtualinherited

Defines the input AudioInfo.

Implements AudioInfoSupport.

Reimplemented in ChannelsSelectOutput, AdapterPrintToAudioOutput, MultiOutput, SPIAudioMaster, SPIRegAudioMaster, AdapterAudioStreamToAudioOutput, CsvOutput< T >, PWMAudioOutput< PWMDriverT >, and EncodedAudioOutput.

◆ setNotifyActive()

void setNotifyActive ( bool flag )

inlineinherited

Deactivate/Reactivate automatic AudioInfo updates: (default is active)

◆ write() [1/2]

size_t write	(	const uint8_t *	data,
		size_t	len
	)

inlineoverridevirtualinherited

Implements AudioOutput.

◆ write() [2/2]

virtual size_t write ( uint8_t ch )

inlineoverridevirtualinherited

Reimplemented in MetaDataOutput, and MultiOutput.

◆ writeSilence()

virtual void writeSilence ( size_t len )

inlinevirtualinherited

Writes n 0 values (= silence)

Parameters

len

Member Data Documentation

◆ _timeout

int _timeout = 10

protectedinherited

◆ buffered

BufferedWindow buffered {&hann}

protectedinherited

◆ cfg

AudioInfo cfg

protectedinherited

◆ copier

StreamCopy copier

protectedinherited

◆ default_fft

AudioRealFFT default_fft

protectedinherited

◆ fft_cfg

AudioFFTConfig fft_cfg {default_fft.defaultConfig(RXTX_MODE)}

protectedinherited

◆ hann

Hann hann

protectedinherited

◆ is_active

bool is_active = false

protectedinherited

◆ is_notify_active

bool is_notify_active = true

protectedinherited

◆ notify_vector

Vector<AudioInfoSupport*> notify_vector

protectedinherited

◆ p_fft

AudioFFTBase* p_fft = nullptr

protectedinherited

◆ p_out

Print* p_out = nullptr

protectedinherited

◆ tmp

SingleBuffer<uint8_t> tmp {MAX_SINGLE_CHARS}

protectedinherited

◆ tmpPos

int tmpPos = 0

protectedinherited

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

src/AudioTools/FFT/FFTEffects.h

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ FFTWhisper() [1/6]

◆ FFTWhisper() [2/6]

◆ FFTWhisper() [3/6]

◆ FFTWhisper() [4/6]

◆ FFTWhisper() [5/6]

◆ FFTWhisper() [6/6]

Member Function Documentation

◆ addNotifyAudioChange()

◆ audioInfo()

◆ audioInfoOut()

◆ availableForWrite()

◆ begin() [1/3]

◆ begin() [2/3]

◆ begin() [3/3]

◆ clearNotifyAudioChange()

◆ defaultConfig()

◆ effect()

◆ effect_callback()

◆ end()

◆ flush()

◆ isDeletable()

◆ isNotifyActive()

◆ notifyAudioChange()

◆ operator bool()

◆ processOutput()

◆ removeNotifyAudioChange()

◆ setAudioInfo()

◆ setNotifyActive()

◆ write() [1/2]

◆ write() [2/2]

◆ writeSilence()

Member Data Documentation

◆ _timeout

◆ buffered

◆ cfg

◆ copier

◆ default_fft

◆ fft_cfg

◆ hann

◆ is_active

◆ is_notify_active

◆ notify_vector

◆ p_fft

◆ p_out

◆ tmp

◆ tmpPos