QAudioOutput Class
Represents an output channel for audio. More...
| Header: | #include <QAudioOutput> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS Multimedia) target_link_libraries(mytarget PRIVATE Qt6::Multimedia) |
| qmake: | QT += multimedia |
| Instantiated By: | AudioOutput |
| Inherits: | QObject |
Properties
Public Functions
Public Slots
Signals
| void | deviceChanged() |
| void | mutedChanged(bool muted) |
| void | volumeChanged(float volume) |
Detailed Description
This class represents an output channel that can be used together with QMediaPlayer or QMediaCaptureSession. It enables the selection of the physical output device to be used, muting the channel, and changing the channel's volume.
Property Documentation
device : QAudioDevice
This property holds the audio device connected to this output.
The device property represents the audio device this output is connected to. This property can be used to select an output device from the QMediaDevices::audioOutputs() list. You can select the system default audio output by setting this property to a default constructed QAudioDevice object.
Access functions:
| QAudioDevice | device() const |
| void | setDevice(const QAudioDevice &device) |
Notifier signal:
| void | deviceChanged() |
muted : bool
This property holds the muted state of the current media.
The value will be true if the output is muted; otherwise false.
Access functions:
| bool | isMuted() const |
| void | setMuted(bool muted) |
Notifier signal:
| void | mutedChanged(bool muted) |
volume : float
This property holds the current volume.
The volume is scaled linearly, ranging from 0 (silence) to 1 (full volume).
Note: values outside this range will be clamped.
By default the volume is 1.
UI volume controls should usually be scaled non-linearly. For example, using a logarithmic scale will produce linear changes in perceived loudness, which is what a user would normally expect from a volume control.
Access functions:
| float | volume() const |
| void | setVolume(float volume) |
Notifier signal:
| void | volumeChanged(float volume) |
See also QtAudio::convertVolume().