AudioOutput QML Type

An audio output to be used for playback or monitoring of a capture session. 更多...

import 語句：	import QtMultimedia
實例化：	QAudioOutput

所有成員列錶，包括繼承成員

特性

device : AudioDevice
muted : bool
volume : real

詳細描述

MediaPlayer {
    id: playMusic
    source: "music.wav"
    audioOutput: AudioOutput {
        volume: slider.value
    }
}
Slider {
    id: slider
    from: 0.
    to: 1.
}

You can use AudioOutput together with a QtMultiMedia::MediaPlayer to play audio content, or you can use it in conjunction with a MultiMedia::CaptureSession to monitor the audio processed by the capture session.

另請參閱 VideoOutput and AudioInput .

特性文檔編製

device : AudioDevice

This property describes 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 QtMultimedia::MediaDevices::audioOutputs() list.

muted : bool

此特性保持音頻輸齣是否靜音。

默認為 false .

volume : real

This property holds the volume of the audio output.

按綫性比例縮放的音量是從 0.0 (無聲) 到 1.0 (full volume). Values outside this range will be clamped: a value lower than 0.0 is set to 0.0, a value higher than 1.0 will set to 1.0.

默認音量為 1.0 .

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.

見 QtMultimedia.convertVolume () 瞭解更多細節。