diff --git a/js/ngfile.js b/js/ngfile.js
index c8b4acc..178263f 100644
--- a/js/ngfile.js
+++ b/js/ngfile.js
@@ -128,45 +128,74 @@ app.controller('mainController', function ($scope, $http, wave) {
         }
 
 
-        reader.onload = function (e) {
-            var x = reader.result.split(/[\s,;\t\r\n]+/);
+      function parseTextData(inputText) {
+        var x = inputText.split(/[\s,;\t\r\n]+/);
 
-            var j = 0;
+        var j = 0;
 
-            for (var i = 0; i < x.length; i++) {
-                if (!isNaN(parseFloat(x[i]))) {
-                    j = j + 1;
-                }
-            }
-
-            wave.sigLength = j;
-            wave.sigData = new Float64Array(j);
-
-            j = 0;
-
-            for (var i = 0; i < x.length; i++) {
-                temp = parseFloat(x[i]);
-                if (!isNaN(temp)) {
-                    wave.sigData[j] = temp;
-                    j = j + 1;
-                }
-            }
-
-            /*
-            var rm = x.length - j;
-            if (rm > 0) {
-            wave.sigData.splice(j, rm);
-            }
-            */
-            if (wave.transform == 1) {
-              location.href = '#/display';
-            } else if (wave.transform == 2) {
-              location.href = '#/cdisplay';
-            } else if (wave.transform == 4) {
-              location.href = '#/denoise';
-            }
+        for (var i = 0; i < x.length; i++) {
+          if (!isNaN(parseFloat(x[i]))) {
+            j = j + 1;
+          }
         }
 
+        wave.sigLength = j;
+        wave.sigData = new Float64Array(j);
+
+        j = 0;
+
+        for (var i = 0; i < x.length; i++) {
+          temp = parseFloat(x[i]);
+          if (!isNaN(temp)) {
+            wave.sigData[j] = temp;
+            j = j + 1;
+          }
+        }
+
+        /*
+        var rm = x.length - j;
+        if (rm > 0) {
+        wave.sigData.splice(j, rm);
+        }
+        */
+      }
+
+      async function parseAudioData(inputBuffer) {
+        console.log("Converting a", inputBuffer.byteLength,
+          "bytes audio buffer to linear PCM");
+
+        var audioCtx = new AudioContext({ sampleRate: 44100 });
+        var pcmData = await audioCtx.decodeAudioData(inputBuffer);
+        var pcmSamples = pcmData.getChannelData(0); // Float32Array
+
+        wave.sigData = new Float64Array(pcmSamples);
+        wave.sigLength = pcmSamples.length;
+      }
+
+      reader.onload = async function (e) {
+        var input = reader.result;
+
+        if (input instanceof ArrayBuffer)
+          await parseAudioData(input);
+        else
+          parseTextData(input);
+
+        console.log("Input wave:", wave.sigLength, "samples");
+
+        if (wave.transform == 1) {
+          location.href = '#/display';
+        } else if (wave.transform == 2) {
+          location.href = '#/cdisplay';
+        } else if (wave.transform == 4) {
+          location.href = '#/denoise';
+        } else {
+          location.href = '#/cdisplay';
+        }
+      }
+
+      if (finp1.type == "audio/mpeg")
+        reader.readAsArrayBuffer(finp1);
+      else
         reader.readAsText(finp1);
     }