changeAudioDevice.js

function(deviceName) {      
    navigator.mediaDevices.getUserMedia({ audio: true, video: false }).then(function(mediaStream) {
        navigator.mediaDevices.enumerateDevices().then(function(devices) {
            devices.forEach(function(device) {
                if (device.kind == "audiooutput") {
                    if (device.label == deviceName){
                        console.log("Changing HTML audio output to device " + device.label);
                        var deviceId = device.deviceId;
                        var videos = document.getElementsByTagName("video");
                        for (var i = 0; i < videos.length; i++){
                            videos[i].setSinkId(deviceId);
                        }
                        var audios = document.getElementsByTagName("audio");
                        for (var i = 0; i < audios.length; i++){
                            audios[i].setSinkId(deviceId);
                        }
                    }
                }
            });

        }).catch(function(err) {
            console.log("Error getting media devices"+ err.name + ": " + err.message);
        });
    }).catch(function(err) {
        console.log("Error getting user media"+ err.name + ": " + err.message);
    });
}