AttenuationModelInverse QML Type▲
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Import Statement: import QtAudioEngine 1.1
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Since: Qt 5.0
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Inherits: Item
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Group: AttenuationModelInverse is part of multimedia_audioengine
Detailed Description▲
AttenuationModelInverse must be defined inside AudioEngine or be added to it using AudioEngine.addAttenuationModel() if AttenuationModelInverse is created dynamically.
Rectangle {
color:"white"
width: 300
height: 500
AudioEngine {
id:audioengine
AttenuationModelInverse {
name:"linear"
start: 20
end: 500
rolloff: 1.5
}
AudioSample {
name:"explosion"
source: "explosion-02.wav"
}
Sound {
name:"explosion"
attenuationModel: "linear"
PlayVariation {
sample:"explosion"
}
}
}
}Attenuation factor is calculated as below:
distance: distance from sound to listener d = min(max(distance, start), end); attenuation = start / (start + (d - start) * rolloff);
Property Documentation▲
end : real▲
This property holds the end distance. There will be no further attenuation if the distance from sound to listener is larger than this. The default value is 1000.
name : string▲
This property holds the name of AttenuationModelInverse, must be unique among all attenuation models and only defined once.
rolloff : real▲
This property holds the rolloff factor. The bigger the value is, the faster the sound attenuates. The default value is 1.
start : real▲
This property holds the start distance. There will be no attenuation if the distance from sound to listener is within this range. The default value is 1.