diff --git a/addons/actions.md b/addons/actions.md
index 02391899e..1d4f1e76e 100644
--- a/addons/actions.md
+++ b/addons/actions.md
@@ -35,19 +35,10 @@ As a general rule, is better to call `MyItem.sendCommand(command)` and `MyItem.p
 - `Map<Item, State> storeStates(Item item1, Item item2, ... Item itemn)`: Returns a `Map<Item, State>` with the current state of each Item. All members of Groups are put into the Map but not the Group's state itself.
 - `restoreStates(Map<Item, State> statesMap)`: Restores the items' states from the map. If the saved state can be interpreted as a command (ON/OFF/etc.), a command is sent to the Item. Otherwise an update is sent to the Item.
 
-### Audio Actions
+### Audio & Voice Actions
 
-- `setMasterVolume(float volume)`: Sets the volume of the host machine (volume in range 0-1)
-- `increaseMasterVolume(float percent)`: Increases the volume by the given percent
-- `decreaseMasterVolume(float percent)`: Decreases the volume by the given percent
-- `float getMasterVolume()`: Returns the current volume as a float between 0 and 1
-- `playSound(String filename)`: Plays the given sound file. The file must be an mp3 or wav and located in `${openhab.home}/sounds`
-- `playStream(String url)`: Plays the audio stream at the given url
-- `say(String text)`: Says the given text through Text-to-Speech
-- `say(String text, String voice)`: Says the given text through the given voice (depends on the TTS engine and voices installed)
-- ` say(String text, String voice, String device)`: Says the given text through the given voice to the given output device (Mac OSX only).
-
-To get a list of available voices use `say -v ?` and to get a list of devices uses `say -a ?`.
+The framework supports several multimedia actions.
+They can be found in the article about [openHAB multimedia]({{base}}/configuration/multimedia.html).
 
 ### Logging Actions
 
diff --git a/configuration/multimedia.md b/configuration/multimedia.md
index c83b2b4b3..bfd23bdbc 100644
--- a/configuration/multimedia.md
+++ b/configuration/multimedia.md
@@ -7,6 +7,18 @@ title: Multimedia
 
 # Multimedia
 
+## Volume
+
+The framework supports some base [functions](https://www.eclipse.org/smarthome/documentation/javadoc/org/eclipse/smarthome/model/script/actions/Audio.html#getMasterVolume--) to control the audio sinks' volume.
+
+### Actions
+
+-`setMasterVolume(float volume)` : Sets the volume of the host machine (volume in range 0-1)
+-`setMasterVolume(PercentType percent)` : Sets the volume of the host machine
+-`increaseMasterVolume(float percent)` : Increases the volume by the given percent
+-`decreaseMasterVolume(float percent)` : Decreases the volume by the given percent
+-`float getMasterVolume()` : Returns the current volume as a float between 0 and 1
+
 ## Audio
 
 openHAB is able to play sound either from the file system (files need to be put in the folder `conf/sounds`), from URLs (e.g. Internet radio streams) or generated by text-to-speech engines (which are available as optional [Voice add-ons](/addons/#voice)).
@@ -23,6 +35,8 @@ The distribution comes with these options built-in:
 
 Additionally, certain bindings register their supported devices as audio sinks, e.g. Sonos speakers.
 
+### Console commands
+
 To check, which audio sinks are available, you can use the console:
 
 ```text
@@ -40,13 +54,15 @@ In order to play a sound, you can use the following command on the console:
 openhab> smarthome:audio play doorbell.mp3
 ```
 
+### Actions
+
 Alternatively the [`playSound()` function](https://www.eclipse.org/smarthome/documentation/javadoc/org/eclipse/smarthome/model/script/actions/Audio.html#playSound-java.lang.String-) can be used in DSL rules:
 
 ```java
 playSound("doorbell.mp3")
-playSound("doorbell.mp3", 25)
+playSound("doorbell.mp3", new PercentType(25))
 playSound("sonos:PLAY5:kitchen", "doorbell.mp3")
-playSound("sonos:PLAY5:kitchen", "doorbell.mp3", 25)
+playSound("sonos:PLAY5:kitchen", "doorbell.mp3", new PercentType(25))
 ```
 
 ## Voice
@@ -54,6 +70,9 @@ playSound("sonos:PLAY5:kitchen", "doorbell.mp3", 25)
 ### Text-to-Speech
 
 In order to use text-to-speech, you need to install at least one [TTS service](/addons/#voice).
+
+### Console Commands
+
 Once you have done so, you will find voices available in your system:
 
 ```text
@@ -73,15 +92,17 @@ In order to say a text, you can enter such a command on the console (The default
 openhab> smarthome:voice say Hello world!
 ```
 
+### Actions
+
 Alternatively you can execute such commands within DSL rules by using the [`say()` function](https://www.eclipse.org/smarthome/documentation/javadoc/org/eclipse/smarthome/core/voice/VoiceManager.html#say-java.lang.String-):
 
 ```java
 say("Hello world!")
-say("Hello world!", 25)
+say("Hello world!", new PercentType(25))
 say("Hello world!", "voicerss:enGB")
-say("Hello world!", "voicerss:enGB", 25)
+say("Hello world!", "voicerss:enGB", new PercentType(25))
 say("Hello world!", "voicerss:enUS", "sonos:PLAY5:kitchen")
-say("Hello world!", "voicerss:enUS", "sonos:PLAY5:kitchen", 25)
+say("Hello world!", "voicerss:enUS", "sonos:PLAY5:kitchen", new PercentType(25))
 ```
 
 You can select a particular voice (second parameter) and a particular audio sink (third parameter).