与网络音频的立体声卷积

Question

我正在尝试使用网络音频api将单声道脉冲与立体声音频文件进行卷积。问题不是得到真正的立体声输出，而是我得到的外观和声音就像复制到两个声道的相同音轨。这是我的代码：

var context = new AudioContext();

var source = context.createBufferSource();
    source.buffer = BUFFERS.user; // stereo file

var splitter = context.createChannelSplitter(2);

var convolverL = context.createConvolver();
    convolverL.normalize = false;
    convolverL.buffer = BUFFERS.impulse; // mono impulse

var convolverR = context.createConvolver();
    convolverR.normalize = false;
    convolverR.buffer = BUFFERS.impulse; // same mono impulse

var merger = context.createChannelMerger(2);

var gain = context.createGain();
    gain.gain.value = 0.75;

// make connections
source.connect(splitter);

splitter.connect(convolverL, 0);
splitter.connect(convolverR, 1);

convolverL.connect(merger, 0, 0);
convolverR.connect(merger, 0, 1);

merger.connect(gain);

gain.connect(context.destination);

source.start(0);