diff --git a/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java b/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
index 1995176..a6a7a6e 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
@@ -181,8 +181,11 @@ public class RecordingActivity extends AppCompatActivity {
 
         sampleRate = Integer.parseInt(shared.getString(MainApplication.PREFERENCE_RATE, ""));
         sampleRate = Sound.getValidRecordRate(MainApplication.getInMode(this), sampleRate);
-        if (sampleRate == -1)
-            throw new RuntimeException("Unable to initailze audio");
+        if (sampleRate == -1) {
+            Toast.makeText(this, "Unable to initailze audio", Toast.LENGTH_SHORT).show();
+            finish();
+            return;
+        }
         samplesUpdate = (int) (pitch.getPitchTime() * sampleRate / 1000.0);
 
         updateBufferSize(false);
@@ -292,10 +295,6 @@ public class RecordingActivity extends AppCompatActivity {
         updateSamples(samplesTime);
     }
 
-    boolean isEmulator() {
-        return "goldfish".equals(Build.HARDWARE);
-    }
-
     void pauseButton() {
         if (thread != null) {
             stopRecording(getString(R.string.pause));
@@ -594,7 +593,6 @@ public class RecordingActivity extends AppCompatActivity {
 
                     rs.open(samplesTime);
 
-
                     int c = MainApplication.getInMode(RecordingActivity.this);
                     int min = AudioRecord.getMinBufferSize(sampleRate, c, Sound.DEFAULT_AUDIOFORMAT);
                     if (min <= 0)