BaseAudioContext: Methode createChannelMerger()

createChannelMerger(numberOfInputs)

const ac = new AudioContext(); ac.decodeAudioData(someStereoBuffer, (data) => { const source = ac.createBufferSource(); source.buffer = data; const splitter = ac.createChannelSplitter(2); source.connect(splitter); const merger = ac.createChannelMerger(2); // Reduce the volume of the left channel only const gainNode = ac.createGain(); gainNode.gain.setValueAtTime(0.5, ac.currentTime); splitter.connect(gainNode, 0); // Connect the splitter back to the second input of the merger: we // effectively swap the channels, here, reversing the stereo image. gainNode.connect(merger, 0, 1); splitter.connect(merger, 1, 0); const dest = ac.createMediaStreamDestination(); // Because we have used a ChannelMergerNode, we now have a stereo // MediaStream we can use to pipe the Web Audio graph to WebRTC, // MediaRecorder, etc. merger.connect(dest); });