num speedOfSound

Source 

@DomName('AudioListener.speedOfSound')
@DocsEditable()
num get speedOfSound =>
    _blink.BlinkAudioListener.instance.speedOfSound_Getter_(this);
void speedOfSound=(num value)

Source 

@DomName('AudioListener.speedOfSound')
@DocsEditable()
set speedOfSound(num value) =>
    _blink.BlinkAudioListener.instance.speedOfSound_Setter_(this, value);