如何使麦克风静音（而不是传入声音）？

Question

使用

const audioIncoming = document.createElement('audio');

用于通过浏览器进行的呼叫。

静音麦克风的正确方法是什么，而不是从网络传入的音频声音？还是有可能吗？

这是一个完整的代码示例：

const audioProgress = document.createElement('audio');
const audioIncoming = document.createElement('audio');

/*** Define listener for managing calls ***/
var callListeners = {
    onCallProgressing: function(call) {
        audioProgress.src = 'style/ringback.wav';
        audioProgress.loop = true;
        audioProgress.play();
        $('div#callLog').append('<div id="stats">Ringing...</div>');
    },
    onCallEstablished: function(call) {
        audioIncoming.srcObject = call.incomingStream;
        audioIncoming.play();
        audioProgress.pause();

        //Report call stats
        var callDetails = call.getDetails();
        $('div#callLog').append('<div id="stats">Answered at: '+(callDetails.establishedTime && new Date(callDetails.establishedTime))+'</div>');
    },
    onCallEnded: function(call) {
        audioProgress.pause();
        audioIncoming.srcObject = null;

        $('button').removeClass('incall');
        $('input#phoneNumber').removeAttr('disabled');

        //Report call stats
        var callDetails = call.getDetails();
        $('div#callLog').append('<div id="stats">Ended: '+new Date(callDetails.endedTime)+'</div>');
        $('div#callLog').append('<div id="stats">Duration (s): '+callDetails.duration+'</div>');
        $('div#callLog').append('<div id="stats">End cause: '+call.getEndCause()+'</div>');
        if(call.error) {
            $('div#callLog').append('<div id="stats">Failure message: '+call.error.message+'</div>');
        }
    }
}