SFML - Simple and Fast Multimedia Library

SFML

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sf
Sound

Regular sound that can be played in the audio environment. More...

#include <Sound.hpp>

Inheritance diagram for sf::Sound:

Public Types
enum	Status { Stopped, Paused, Playing }
	Enumeration of the sound source states. More...

Public Member Functions
	Sound ()
	Default constructor. More...

	Sound (const SoundBuffer &buffer)
	Construct the sound with a buffer. More...

	Sound (const Sound &copy)
	Copy constructor. More...

	~Sound ()
	Destructor. More...

void	play ()
	Start or resume playing the sound. More...

void	pause ()
	Pause the sound. More...

void	stop ()
	stop playing the sound More...

void	setBuffer (const SoundBuffer &buffer)
	Set the source buffer containing the audio data to play. More...

void	setLoop (bool loop)
	Set whether or not the sound should loop after reaching the end. More...

void	setPlayingOffset (Time timeOffset)
	Change the current playing position of the sound. More...

const SoundBuffer *	getBuffer () const
	Get the audio buffer attached to the sound. More...

bool	getLoop () const
	Tell whether or not the sound is in loop mode. More...

Time	getPlayingOffset () const
	Get the current playing position of the sound. More...

Status	getStatus () const
	Get the current status of the sound (stopped, paused, playing) More...

Sound &	operator= (const Sound &right)
	Overload of assignment operator. More...

void	resetBuffer ()
	Reset the internal buffer of the sound. More...

void	setPitch (float pitch)
	Set the pitch of the sound. More...

void	setVolume (float volume)
	Set the volume of the sound. More...

void	setPosition (float x, float y, float z)
	Set the 3D position of the sound in the audio scene. More...

void	setPosition (const Vector3f &position)
	Set the 3D position of the sound in the audio scene. More...

void	setRelativeToListener (bool relative)
	Make the sound's position relative to the listener or absolute. More...

void	setMinDistance (float distance)
	Set the minimum distance of the sound. More...

void	setAttenuation (float attenuation)
	Set the attenuation factor of the sound. More...

float	getPitch () const
	Get the pitch of the sound. More...

float	getVolume () const
	Get the volume of the sound. More...

Vector3f	getPosition () const
	Get the 3D position of the sound in the audio scene. More...

bool	isRelativeToListener () const
	Tell whether the sound's position is relative to the listener or is absolute. More...

float	getMinDistance () const
	Get the minimum distance of the sound. More...

float	getAttenuation () const
	Get the attenuation factor of the sound. More...

Protected Attributes
unsigned int	m_source
	OpenAL source identifier. More...

Detailed Description

Regular sound that can be played in the audio environment.

sf::Sound is the class to use to play sounds.

It provides:

Control (play, pause, stop)
Ability to modify output parameters in real-time (pitch, volume, ...)
3D spatial features (position, attenuation, ...).

sf::Sound is perfect for playing short sounds that can fit in memory and require no latency, like foot steps or gun shots. For longer sounds, like background musics or long speeches, rather see sf::Music (which is based on streaming).

In order to work, a sound must be given a buffer of audio data to play. Audio data (samples) is stored in sf::SoundBuffer, and attached to a sound with the setBuffer() function. The buffer object attached to a sound must remain alive as long as the sound uses it. Note that multiple sounds can use the same sound buffer at the same time.

Usage example:

sf::SoundBuffer buffer;
buffer.loadFromFile("sound.wav");
sf::Sound sound;
sound.setBuffer(buffer);
sound.play();

See also: sf::SoundBuffer, sf::Music

Definition at line 45 of file Sound.hpp.

Member Enumeration Documentation

enum sf::SoundSource::Status

inherited

Enumeration of the sound source states.

Enumerator
Stopped	Sound is not playing.
Paused	Sound is paused.
Playing	Sound is playing.

Definition at line 50 of file SoundSource.hpp.

Constructor & Destructor Documentation

sf::Sound::Sound ( )

Default constructor.

sf::Sound::Sound ( const SoundBuffer & buffer )

explicit

Construct the sound with a buffer.

Parameters

buffer Sound buffer containing the audio data to play with the sound

sf::Sound::Sound ( const Sound & copy )

Copy constructor.

Parameters

copy	Instance to copy

sf::Sound::~Sound ( )

Destructor.

Member Function Documentation

float sf::SoundSource::getAttenuation ( ) const

inherited

Get the attenuation factor of the sound.

Returns: Attenuation factor of the sound

See also: setAttenuation, getMinDistance

const SoundBuffer* sf::Sound::getBuffer ( ) const

Get the audio buffer attached to the sound.

Returns: Sound buffer attached to the sound (can be NULL)

bool sf::Sound::getLoop ( ) const

Tell whether or not the sound is in loop mode.

Returns: True if the sound is looping, false otherwise

See also: setLoop

float sf::SoundSource::getMinDistance ( ) const

inherited

Get the minimum distance of the sound.

Returns: Minimum distance of the sound

See also: setMinDistance, getAttenuation

float sf::SoundSource::getPitch ( ) const

inherited

Get the pitch of the sound.

Returns: Pitch of the sound

See also: setPitch

Time sf::Sound::getPlayingOffset ( ) const

Get the current playing position of the sound.

Returns: Current playing position, from the beginning of the sound

See also: setPlayingOffset

Vector3f sf::SoundSource::getPosition ( ) const

inherited

Get the 3D position of the sound in the audio scene.

Returns: Position of the sound

See also: setPosition

Status sf::Sound::getStatus ( ) const

Get the current status of the sound (stopped, paused, playing)

Returns: Current status of the sound

float sf::SoundSource::getVolume ( ) const

inherited

Get the volume of the sound.

Returns: Volume of the sound, in the range [0, 100]

See also: setVolume

bool sf::SoundSource::isRelativeToListener ( ) const

inherited

Tell whether the sound's position is relative to the listener or is absolute.

Returns: True if the position is relative, false if it's absolute

See also: setRelativeToListener

Sound& sf::Sound::operator= ( const Sound & right )

Overload of assignment operator.

Parameters

right Instance to assign

Returns: Reference to self

void sf::Sound::pause ( )

Pause the sound.

This function pauses the sound if it was playing, otherwise (sound already paused or stopped) it has no effect.

See also: play, stop

void sf::Sound::play ( )

Start or resume playing the sound.

This function starts the stream if it was stopped, resumes it if it was paused, and restarts it from beginning if it was it already playing. This function uses its own thread so that it doesn't block the rest of the program while the sound is played.

See also: pause, stop

void sf::Sound::resetBuffer ( )

Reset the internal buffer of the sound.

This function is for internal use only, you don't have to use it. It is called by the sf::SoundBuffer that this sound uses, when it is destroyed in order to prevent the sound from using a dead buffer.

void sf::SoundSource::setAttenuation ( float attenuation )

inherited

Set the attenuation factor of the sound.

The attenuation is a multiplicative factor which makes the sound more or less loud according to its distance from the listener. An attenuation of 0 will produce a non-attenuated sound, i.e. its volume will always be the same whether it is heard from near or from far. On the other hand, an attenuation value such as 100 will make the sound fade out very quickly as it gets further from the listener. The default value of the attenuation is 1.

Parameters

attenuation New attenuation factor of the sound

See also: getAttenuation, setMinDistance

void sf::Sound::setBuffer ( const SoundBuffer & buffer )

Set the source buffer containing the audio data to play.

It is important to note that the sound buffer is not copied, thus the sf::SoundBuffer instance must remain alive as long as it is attached to the sound.

Parameters

buffer Sound buffer to attach to the sound

See also: getBuffer

void sf::Sound::setLoop ( bool loop )

Set whether or not the sound should loop after reaching the end.

If set, the sound will restart from beginning after reaching the end and so on, until it is stopped or setLoop(false) is called. The default looping state for sound is false.

Parameters

loop	True to play in loop, false to play once

See also: getLoop

void sf::SoundSource::setMinDistance ( float distance )

inherited

Set the minimum distance of the sound.

The "minimum distance" of a sound is the maximum distance at which it is heard at its maximum volume. Further than the minimum distance, it will start to fade out according to its attenuation factor. A value of 0 ("inside the head of the listener") is an invalid value and is forbidden. The default value of the minimum distance is 1.

Parameters

distance New minimum distance of the sound

See also: getMinDistance, setAttenuation

void sf::SoundSource::setPitch ( float pitch )

inherited

Set the pitch of the sound.

The pitch represents the perceived fundamental frequency of a sound; thus you can make a sound more acute or grave by changing its pitch. A side effect of changing the pitch is to modify the playing speed of the sound as well. The default value for the pitch is 1.

Parameters

pitch New pitch to apply to the sound

See also: getPitch

void sf::Sound::setPlayingOffset ( Time timeOffset )

Change the current playing position of the sound.

The playing position can be changed when the sound is either paused or playing. Changing the playing position when the sound is stopped has no effect, since playing the sound will reset its position.

Parameters

timeOffset New playing position, from the beginning of the sound

See also: getPlayingOffset

void sf::SoundSource::setPosition	(	float	x,
		float	y,
		float	z
	)

inherited

Set the 3D position of the sound in the audio scene.

Only sounds with one channel (mono sounds) can be spatialized. The default position of a sound is (0, 0, 0).

Parameters

x	X coordinate of the position of the sound in the scene
y	Y coordinate of the position of the sound in the scene
z	Z coordinate of the position of the sound in the scene

See also: getPosition

void sf::SoundSource::setPosition ( const Vector3f & position )

inherited

Set the 3D position of the sound in the audio scene.

Only sounds with one channel (mono sounds) can be spatialized. The default position of a sound is (0, 0, 0).

Parameters

position Position of the sound in the scene

See also: getPosition

void sf::SoundSource::setRelativeToListener ( bool relative )

inherited

Make the sound's position relative to the listener or absolute.

Making a sound relative to the listener will ensure that it will always be played the same way regardless of the position of the listener. This can be useful for non-spatialized sounds, sounds that are produced by the listener, or sounds attached to it. The default value is false (position is absolute).

Parameters

relative True to set the position relative, false to set it absolute

See also: isRelativeToListener

void sf::SoundSource::setVolume ( float volume )

inherited

Set the volume of the sound.

The volume is a value between 0 (mute) and 100 (full volume). The default value for the volume is 100.

Parameters

volume Volume of the sound

See also: getVolume

void sf::Sound::stop ( )

stop playing the sound

This function stops the sound if it was playing or paused, and does nothing if it was already stopped. It also resets the playing position (unlike pause()).

See also: play, pause

Member Data Documentation

unsigned int sf::SoundSource::m_source

protectedinherited

OpenAL source identifier.

Definition at line 274 of file SoundSource.hpp.

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

Sound.hpp

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SFML - Simple and Fast Multimedia Library

SFML

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation