audio - Web Audio API 向特定扬声器/频道播放声音

Question

我正在尝试从环绕声系统中的左侧或右侧以外的特定扬声器播放声音。我可以轻松地在左右声道之间切换，但无法从任何其他扬声器获得声音。在 Firefox 和 Chrome 上试过。

<script>
context = new AudioContext();
function playSound()
{
    var oscillator = context.createOscillator();
    oscillator.frequency.value = 440;
    var mergerNode = context.createChannelMerger(6);
    var silence = context.createBufferSource();
    silence.connect(mergerNode, 0, 0);
    silence.connect(mergerNode, 0, 1);
    silence.connect(mergerNode, 0, 2);
    silence.connect(mergerNode, 0, 3);
    silence.connect(mergerNode, 0, 4);
    oscillator.connect(mergerNode, 0, 5);
    mergerNode.connect(context.destination);
    currentTime = context.currentTime;
    oscillator.start(currentTime);
    oscillator.stop(currentTime + 2);    
}
playSound();
</script>