diff --git a/docs/TODO.md b/docs/TODO.md
index 4da208f7..dc38123c 100644
--- a/docs/TODO.md
+++ b/docs/TODO.md
@@ -1,16 +1,18 @@
 # TODO
 
-- custom action
 - sfx selection
+- custom action
+
+- fix spinbox buttons
 - combo box custom item
 - explain pattern
-- fix spinbox buttons
+- fix flickable popups can't be flicked by keyboard
+- seen tooltips can't be shown on image hover
+
 - quick settings
 - import/export/json edit rules?
-- fix flickable popups can't be flicked by keyboard
 - room selector for room rules
 - validate json for unknown action/condition
-- seen tooltips can't be shown on image hover
 
 - PCN docstrings 
 - PCN error handling
@@ -19,8 +21,6 @@
 - Implement fallback QML notifications, usable if dbus isn't available
 
 - add http_proxy support
-- image viewer: can't expand image in reduced window layout
-- Encrypted rooms don't show invites in member list after Mirage restart
 - Room display name not updated when someone removes theirs
 - Fix right margin of own `<image url>\n<image url>` messages
 - warn on ambiguously activated shortcut
diff --git a/mirage.pro b/mirage.pro
index 2febc543..ae91489f 100644
--- a/mirage.pro
+++ b/mirage.pro
@@ -112,7 +112,7 @@ QMAKE_CLEAN *= packaging/flatpak/flatpak-pip.json .flatpak-builder
 # Generate resource file
 
 RESOURCE_FILES *= $$glob_filenames(qmldir, *.qml, *.qpl, *.js, *.py)
-RESOURCE_FILES *= $$glob_filenames( *.jpg, *.jpeg, *.png, *.svg)
+RESOURCE_FILES *= $$glob_filenames( *.jpg, *.jpeg, *.png, *.svg, *.wav)
 
 file_content += '<!-- vim: set ft=xml : -->'
 file_content += '<!DOCTYPE RCC>'
diff --git a/src/config/settings.py b/src/config/settings.py
index ab5d33da..96da9cde 100644
--- a/src/config/settings.py
+++ b/src/config/settings.py
@@ -56,6 +56,14 @@ class Notifications:
     # keep seeing raw <tags> in notifications.
     use_html: bool = True
 
+    # Default sound to play for notifications. Can be the filename
+    # of a builtin sound (only "default.wav" currently exists), or the
+    # absolute path to an audio file, preferably in the WAV format.
+    default_sound: str = "default.wav"
+
+    # Volume at which the notification sound will be played, 0-100.
+    volume: int = 75
+
     # How long in seconds the window will flash in your dock or taskbar when
     # a new message, which matches a notification push rule with a
     # flash (lightbulb) action, is posted in a room.
diff --git a/src/gui/PythonBridge/EventHandlers.qml b/src/gui/PythonBridge/EventHandlers.qml
index 626aafd7..a8d5aaf6 100644
--- a/src/gui/PythonBridge/EventHandlers.qml
+++ b/src/gui/PythonBridge/EventHandlers.qml
@@ -26,6 +26,11 @@ QtObject {
         if (bubble)
             py.callCoro("desktop_notify", [title, body, image])
 
+        if (sound) {
+            window.mainUI.defaultNotificationSound.seek(0)
+            window.mainUI.defaultNotificationSound.play()
+        }
+
         if (urgencyHint) {
             const msec =
                 critical ?
diff --git a/src/gui/UI.qml b/src/gui/UI.qml
index 8d824214..03cc89c6 100644
--- a/src/gui/UI.qml
+++ b/src/gui/UI.qml
@@ -6,6 +6,7 @@ import QtQuick.Controls 2.12
 import QtQuick.Layouts 1.12
 import QtQuick.Window 2.12
 import QtGraphicalEffects 1.12
+import QtMultimedia 5.12
 import "."
 import "Base"
 import "MainPane"
@@ -35,6 +36,7 @@ Item {
         return ids
     }
 
+    readonly property alias defaultNotificationSound: defaultNotificationSound
     readonly property alias debugConsole: debugConsole
     readonly property alias mainPane: mainPane
     readonly property alias pageLoader: pageLoader
@@ -114,16 +116,27 @@ Item {
         font.pointSize: -1
     }
 
-    DebugConsole {
-        id: debugConsole
-        target: mainUI
-        visible: false
+    Audio {
+        id: defaultNotificationSound
+
+        readonly property string sfx:
+            window.settings.Notifications.default_sound
+
+        audioRole: Audio.NotificationRole
+        volume: window.settings.Notifications.volume / 100
+        source: sfx.trim() === "default.wav" ? "../sounds/default.wav" : sfx
     }
 
     IdleManager {
         id: idleManager
     }
 
+    DebugConsole {
+        id: debugConsole
+        target: mainUI
+        visible: false
+    }
+
     LinearGradient {
         id: mainUIGradient
         visible: ! image.visible
diff --git a/src/sounds/default.wav b/src/sounds/default.wav
new file mode 100644
index 00000000..7e2abdd8
Binary files /dev/null and b/src/sounds/default.wav differ