QAudio¶

Description¶

TODO

Error

Member	Value	Description
FatalError	4	A non-recoverable error has occurred, the audio device is not usable at this time.
IOError	2	An error occurred during read/write of audio device
NoError	0	No errors have occurred
OpenError	1	An error occurred opening the audio device
UnderrunError	3	Audio data is not being fed to the audio device at a fast enough rate

Mode

Member	Value	Description
AudioInput	0	audio input device
AudioOutput	1	audio output device

Role

This enum describes the role of an audio stream.

See also

Member	Value	Description
AccessibilityRole	7	For accessibility, such as with a screen reader
AlarmRole	4	Alarm
CustomRole	10	The role is specified by customAudioRole()
GameRole	9	Game audio
MusicRole	1	Music
NotificationRole	5	Notification, such as an incoming e-mail or a chat request
RingtoneRole	6	Ringtone
SonificationRole	8	Sonification, such as with user interface sounds
UnknownRole	0	The role is unknown or undefined
VideoRole	2	Soundtrack from a movie or a video
VoiceCommunicationRole	3	Voice communications, such as telephony

State

Member	Value	Description
ActiveState	0	Audio data is being processed, this state is set after start() is called and while audio data is available to be processed.
IdleState	3	The QIODevice passed in has no data and audio system’s buffer is empty, this state is set after start() is called and while no audio data is available to be processed.
InterruptedState	TODO	This stream is in a suspended state because another higher priority stream currently has control of the audio device. Playback cannot resume until the higher priority stream relinquishes control of the audio device.
StoppedState	2	The audio device is closed, and is not processing any audio data
SuspendedState	1	The audio stream is in a suspended state. Entered after suspend() is called or when another stream takes control of the audio device. In the later case, a call to resume will return control of the audio device to this stream. This should usually only be done upon user request.

VolumeScale

This enum defines the different audio volume scales.

Member	Value	Description
CubicVolumeScale	1	Cubic scale. `0.0` (0%) is silence and `1.0` (100%) is full volume.
DecibelVolumeScale	3	Decibel (dB, amplitude) logarithmic scale. `-200` is silence and `0` is full volume.
LinearVolumeScale	0	Linear scale. `0.0` (0%) is silence and `1.0` (100%) is full volume. All Qt Multimedia classes that have an audio volume use a linear scale.
LogarithmicVolumeScale	2	Logarithmic Scale. `0.0` (0%) is silence and `1.0` (100%) is full volume. UI volume controls should usually use a logarithmic scale.