juce::SamplerSound Class Reference

Detailed Description

A subclass of SynthesiserSound that represents a sampled audio clip.

This is a pretty basic sampler, and just attempts to load the whole audio stream into memory.

To use it, create a Synthesiser, add some SamplerVoice objects to it, then give it some SampledSound objects to play.

See also

SamplerVoice, Synthesiser, SynthesiserSound

Inheritance diagram for juce::SamplerSound:

Public Member Functions
	SamplerSound (const String &name, AudioFormatReader &source, const BigInteger &midiNotes, int midiNoteForNormalPitch, double attackTimeSecs, double releaseTimeSecs, double maxSampleLengthSeconds)
	Creates a sampled sound from an audio reader.
	~SamplerSound () override
	Destructor.
const String &	getName () const noexcept
	Returns the sample's name.
AudioBuffer< float > *	getAudioData () const noexcept
	Returns the audio sample data.
void	setEnvelopeParameters (ADSR::Parameters parametersToUse)
	Changes the parameters of the ADSR envelope which will be applied to the sample.
bool	appliesToNote (int midiNoteNumber) override
	Returns true if this sound should be played when a given midi note is pressed.
bool	appliesToChannel (int midiChannel) override
	Returns true if the sound should be triggered by midi events on a given channel.
Public Member Functions inherited from juce::SynthesiserSound
	~SynthesiserSound () override
	Destructor.
Public Member Functions inherited from juce::ReferenceCountedObject
void	incReferenceCount () noexcept
	Increments the object's reference count.
void	decReferenceCount () noexcept
	Decreases the object's reference count.
bool	decReferenceCountWithoutDeleting () noexcept
	Decreases the object's reference count.
int	getReferenceCount () const noexcept
	Returns the object's current reference count.

Additional Inherited Members
Public Types inherited from juce::SynthesiserSound
using	Ptr = ReferenceCountedObjectPtr<SynthesiserSound>
	The class is reference-counted, so this is a handy pointer class for it.
Protected Member Functions inherited from juce::SynthesiserSound
	SynthesiserSound ()
Protected Member Functions inherited from juce::ReferenceCountedObject
	ReferenceCountedObject ()=default
	Creates the reference-counted object (with an initial ref count of zero).
	ReferenceCountedObject (const ReferenceCountedObject &) noexcept
	Copying from another object does not affect this one's reference-count.
	ReferenceCountedObject (ReferenceCountedObject &&) noexcept
	Copying from another object does not affect this one's reference-count.
ReferenceCountedObject &	operator= (const ReferenceCountedObject &) noexcept
	Copying from another object does not affect this one's reference-count.
ReferenceCountedObject &	operator= (ReferenceCountedObject &&) noexcept
	Copying from another object does not affect this one's reference-count.
virtual	~ReferenceCountedObject ()
	Destructor.
void	resetReferenceCount () noexcept
	Resets the reference count to zero without deleting the object.

Constructors and Destructors

SamplerSound()

juce::SamplerSound::SamplerSound	(	const String &	name,
		AudioFormatReader &	source,
		const BigInteger &	midiNotes,
		int	midiNoteForNormalPitch,
		double	attackTimeSecs,
		double	releaseTimeSecs,
		double	maxSampleLengthSeconds )

Creates a sampled sound from an audio reader.

This will attempt to load the audio from the source into memory and store it in this object.

Parameters

name	a name for the sample
source	the audio to load. This object can be safely deleted by the caller after this constructor returns
midiNotes	the set of midi keys that this sound should be played on. This is used by the SynthesiserSound::appliesToNote() method
midiNoteForNormalPitch	the midi note at which the sample should be played with its natural rate. All other notes will be pitched up or down relative to this one
attackTimeSecs	the attack (fade-in) time, in seconds
releaseTimeSecs	the decay (fade-out) time, in seconds
maxSampleLengthSeconds	a maximum length of audio to read from the audio source, in seconds

Referenced by SamplerVoice.

~SamplerSound()

juce::SamplerSound::~SamplerSound ( )

override

Destructor.

Member Functions

getName()

const String & juce::SamplerSound::getName ( ) const

noexcept

Returns the sample's name.

getAudioData()

AudioBuffer< float > * juce::SamplerSound::getAudioData ( ) const

noexcept

Returns the audio sample data.

This could return nullptr if there was a problem loading the data.

setEnvelopeParameters()

void juce::SamplerSound::setEnvelopeParameters

(

ADSR::Parameters

parametersToUse

)

Changes the parameters of the ADSR envelope which will be applied to the sample.

appliesToNote()

bool juce::SamplerSound::appliesToNote ( int midiNoteNumber )

overridevirtual

Returns true if this sound should be played when a given midi note is pressed.

The Synthesiser will use this information when deciding which sounds to trigger for a given note.

Implements juce::SynthesiserSound.

appliesToChannel()

bool juce::SamplerSound::appliesToChannel ( int midiChannel )

overridevirtual

Returns true if the sound should be triggered by midi events on a given channel.

The Synthesiser will use this information when deciding which sounds to trigger for a given note.

Implements juce::SynthesiserSound.