How to capture audio in javascript? -

i using getusermedia(), working on firefox , chrome, yet got deprecated , works on https (in chrome). there other/better way speech input in javascript works on platforms?

e.g. how websites web.whatsapp.com app record audio? getusermedia() prompts first-time-users permit audio recording, whereas whatsapp application doesn't require user's permission.

the getusermedia() using looks this:

navigator.getusermedia(     {         "audio": {             "mandatory": {                 "googechocancellation": "false",                 "googautogaincontrol": "false",                 "goognoisesuppression": "false",                 "googhighpassfilter": "false"             },             "optional": []         },     }, gotstream, function(e) {         console.log(e);     }); 

chrome require using https, since getusermedia powerful feature. api access shouldn't work in non-secure domains, api access may bled on non-secure actors. firefox still supports getusermedia on http, though.

i've been using recorderjs , served purposes well. here code example. (source)

function recordaudio(stream, cfg) {    var config = cfg || {};   var bufferlen = config.bufferlen || 4096;   var numchannels = config.numchannels || 2;   this.context = stream.context;   var recordbuffers = [];   var recording = false;   this.node = (this.context.createscriptprocessor ||     this.context.createjavascriptnode).call(this.context,     bufferlen, numchannels, numchannels);    stream.connect(this.node);   this.node.connect(this.context.destination);    this.node.onaudioprocess = function(e) {     if (!recording) return;     (var = 0; < numchannels; i++) {       if (!recordbuffers[i]) recordbuffers[i] = [];       recordbuffers[i].push.apply(recordbuffers[i], e.inputbuffer.getchanneldata(i));     }   }    this.getdata = function() {     var tmp = recordbuffers;     recordbuffers = [];     return tmp; // returns array of array containing data various channels   };    this.start() = function() {     recording = true;   };    this.stop() = function() {     recording = false;   }; } 

the usage straightforward:

var recorder = new recordaudio(usermedia); recorder.start(); recorder.stop(); var recordeddata = recorder.getdata() 

edit: may want check answer if nothing works.