angular socket sound

        console.log("Talk button pressing");    
        this.pushToTalkIcon.nativeElement.src = "assets/red-light.png";
        this.pushToTalkLabel.nativeElement.innerHTML = "Şuan siz konuşuyorsunuz.";
        this.renderer.setAttribute(this.pushToTalkIcon.nativeElement, 'class', 'blink_img');
        
        var constraints = { audio: true };
        
        let websocket = this.socket;
        navigator.mediaDevices.getUserMedia(constraints).then(function(mediaStream) {
            var mediaRecorder = new MediaRecorder(mediaStream);
            var recordedChunks = [];

            mediaRecorder.onstart = function(e) {
                recordedChunks = [];
            };
            mediaRecorder.ondataavailable = function(e) {
                recordedChunks.push(e.data);
            };
            mediaRecorder.onstop = function(e) {
                var blob = new Blob(recordedChunks, { 'type' : 'audio/x-wav; codecs=opus' });
                //socket.emit('radio', blob);
                console.log(blob);
                websocket.sendAudioStream(blob);
            };

            // Start recording
            mediaRecorder.start();

            // Stop recording after 5 seconds and broadcast it to server
            setTimeout(function() {
                mediaRecorder.stop()
            }, 3000);


            mediaRecorder.addEventListener('stop', event => {
                console.log("Ses akışı bitti!"); 
                //this.releaseTalkButton(event);
                this.pushToTalkIconRef.nativeElement.src = "assets/green-light.png";
                this.pushToTalkLabelRef.nativeElement.innerHTML = "Haberleşme sistemi aktif.";
                this.rendererRef.setAttribute(this.pushToTalkIcon.nativeElement, 'class', '');
            });
        });