diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2AudioSettingsMenu.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2AudioSettingsMenu.java
index 1da8ee55..ab493479 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2AudioSettingsMenu.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2AudioSettingsMenu.java
@@ -165,6 +165,65 @@ public class Apple2AudioSettingsMenu implements Apple2MenuView {
                 seekBarValue.setText("" + vol);
                 return convertView;
             }
+        },
+        ADVANCED_SEPARATOR {
+            @Override public String getTitle(Apple2Activity activity) {
+                return activity.getResources().getString(R.string.settings_advanced);
+            }
+            @Override public String getSummary(Apple2Activity activity) {
+                return activity.getResources().getString(R.string.settings_advanced_summary);
+            }
+        },
+        AUDIO_LATENCY {
+            @Override public String getTitle(Apple2Activity activity) {
+                return activity.getResources().getString(R.string.audio_latency);
+            }
+            @Override public String getSummary(Apple2Activity activity) {
+                return activity.getResources().getString(R.string.audio_latency_summary);
+            }
+            @Override public View getView(final Apple2Activity activity, View convertView) {
+                LayoutInflater inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+                convertView = inflater.inflate(R.layout.a2preference_slider, null, false);
+
+                TextView tv = (TextView)convertView.findViewById(R.id.a2preference_slider_summary);
+                tv.setText(getSummary(activity));
+
+                final TextView seekBarValue = (TextView)convertView.findViewById(R.id.a2preference_slider_seekBarValue);
+
+                final SeekBar sb = (SeekBar)convertView.findViewById(R.id.a2preference_slider_seekBar);
+                sb.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+                    @Override
+                    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                        if (!fromUser) {
+                            return;
+                        }
+                        if (progress <= 0) {
+                            // buffer size cannot be zero
+                            progress = 1;
+                            sb.setProgress(progress);
+                        }
+                        float latencySecs = (float)progress / Apple2Preferences.AUDIO_LATENCY_NUM_CHOICES;
+                        seekBarValue.setText("" + latencySecs);
+                        Apple2Preferences.AUDIO_LATENCY.saveFloat(activity, latencySecs);
+                    }
+
+                    @Override
+                    public void onStartTrackingTouch(SeekBar seekBar) {
+                    }
+
+                    @Override
+                    public void onStopTrackingTouch(SeekBar seekBar) {
+                    }
+                });
+
+                sb.setMax(0); // http://stackoverflow.com/questions/10278467/seekbar-not-setting-actual-progress-setprogress-not-working-on-early-android
+                sb.setMax(Apple2Preferences.AUDIO_LATENCY_NUM_CHOICES);
+                float latencySecs = Apple2Preferences.AUDIO_LATENCY.floatValue(activity);
+                seekBarValue.setText("" + latencySecs);
+                int tick = (int) (latencySecs * (float) Apple2Preferences.AUDIO_LATENCY_NUM_CHOICES);
+                sb.setProgress(tick);
+                return convertView;
+            }
         };
 
         private static View _basicView(Apple2Activity activity, SETTINGS setting,  View convertView) {
diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java
index c5186107..970f4f1c 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java
@@ -71,6 +71,27 @@ public enum Apple2Preferences {
         @Override public int intValue(Apple2Activity activity) {
             return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), Volume.MEDIUM.ordinal());
         }
+    },
+    AUDIO_LATENCY {
+        @Override public void load(Apple2Activity activity) {
+            nativeSetAudioLatency(floatValue(activity));
+        }
+        @Override public float floatValue(Apple2Activity activity) {
+
+            float defaultLatency = 0.f;
+            if (defaultLatency == 0.f) {
+                int sampleRateCanary = DevicePropertyCalculator.getRecommendedSampleRate(activity);
+                if (sampleRateCanary == DevicePropertyCalculator.defaultSampleRate) {
+                    // quite possibly an audio-challenged device
+                    defaultLatency = 0.4f;
+                } else {
+                    // reasonable default for high-end devices
+                    defaultLatency = 0.25f;
+                }
+            }
+
+            return activity.getPreferences(Context.MODE_PRIVATE).getFloat(toString(), defaultLatency);
+        }
     };
 
     public enum HiresColor {
@@ -111,16 +132,21 @@ public enum Apple2Preferences {
         dialog.show();
     }
 
+    public final static int AUDIO_LATENCY_NUM_CHOICES = 20;
     public final static String TAG = "Apple2Preferences";
 
     // set and apply
 
+    public void saveBoolean(Apple2Activity activity, boolean value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), value).apply();
+        load(activity);
+    }
     public void saveInt(Apple2Activity activity, int value) {
         activity.getPreferences(Context.MODE_PRIVATE).edit().putInt(toString(), value).apply();
         load(activity);
     }
-    public void saveBoolean(Apple2Activity activity, boolean value) {
-        activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), value).apply();
+    public void saveFloat(Apple2Activity activity, float value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putFloat(toString(), value).apply();
         load(activity);
     }
     public void saveHiresColor(Apple2Activity activity, HiresColor value) {
@@ -142,12 +168,21 @@ public enum Apple2Preferences {
         return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), 0);
     }
 
+    public float floatValue(Apple2Activity activity) {
+        return activity.getPreferences(Context.MODE_PRIVATE).getFloat(toString(), 0.0f);
+    }
+
     public static void loadPreferences(Apple2Activity activity) {
         for (Apple2Preferences pref : Apple2Preferences.values()) {
             pref.load(activity);
         }
     }
 
+    public static void resetPreferences(Apple2Activity activity) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().clear().commit();
+        loadPreferences(activity);
+    }
+
     private static native void nativeEnableTouchJoystick(boolean enabled);
     private static native void nativeEnableTiltJoystick(boolean enabled);
     private static native void nativeSetColor(int color);
@@ -155,4 +190,5 @@ public enum Apple2Preferences {
     private static native void nativeSetSpeakerVolume(int volume);
     private static native boolean nativeSetMockingboardEnabled(boolean enabled);
     private static native void nativeSetMockingboardVolume(int volume);
+    private static native void nativeSetAudioLatency(float latencySecs);
 }
diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/DevicePropertyCalculator.java b/Android/app/src/main/java/org/deadc0de/apple2ix/DevicePropertyCalculator.java
index 8f9d6af0..de4e742e 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/DevicePropertyCalculator.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/DevicePropertyCalculator.java
@@ -38,6 +38,8 @@ import android.os.Build;
  */
 public final class DevicePropertyCalculator
 {
+    public final static int defaultSampleRate = 22050;
+
     public static boolean detectLowLatency( Context aContext )
     {
         // check for low latency audio
@@ -84,7 +86,6 @@ public final class DevicePropertyCalculator
 
             SR_CHECK = am.getProperty( AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE );
         }
-        final int defaultSampleRate = 22050;
 
         return ( SR_CHECK != null ) ? Integer.parseInt( SR_CHECK ) : defaultSampleRate;
     }
diff --git a/Android/app/src/main/res/values/strings.xml b/Android/app/src/main/res/values/strings.xml
index aad258d6..868dd911 100644
--- a/Android/app/src/main/res/values/strings.xml
+++ b/Android/app/src/main/res/values/strings.xml
@@ -9,7 +9,9 @@
     <string name="action_settings">Settings</string>
     <string name="app_name">Apple2ix</string>
     <string name="audio_configure">Configure audio…</string>
-    <string name="audio_configure_summary">Volume, mockingboard, etc</string>
+    <string name="audio_configure_summary">Speaker volume, Mockingboard, etc</string>
+    <string name="audio_latency">Audio latency</string>
+    <string name="audio_latency_summary">Audio latency in secs</string>
     <string name="cancel">Cancel</string>
     <string name="color_bw">Black/white</string>
     <string name="color_color">Color</string>
@@ -63,6 +65,8 @@
     <string name="speed_swipe_summary">Left/right swiping decreases/increases emulation speed</string>
     <string name="settings">Apple2ix emulator settings</string>
     <string name="settings_audio">Apple2ix audio settings</string>
+    <string name="settings_advanced">Advanced settings</string>
+    <string name="settings_advanced_summary">Warning: these settings may potentially degrade emulation performance</string>
     <string name="tab_general">General</string>
     <string name="tab_joystick">Joystick</string>
     <string name="title_activity_second">SecondActivity</string>