diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9461db0f0..26a24c85c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,7 +14,8 @@ All notable changes to this project will be documented in this file.
 - List of treenode subitems on otherwise empty panel (with 32x32 icons)
 - DefineVideoStream codecId and videoFlagsDeblocking handled as enums in raw editation
 - Option to mute frame sounds
-- Option to fix conflation artifacts in antialising (Default off - it is slow)
+- Experimental option to fix conflation artifacts in antialising (slow)
+- Option to disable autoplay of sounds (DefineSound)
 
 ### Fixed
 - [#1897] Close menu button without selecting specific item
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
index f2a4224fb..af5d88e6b 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
@@ -831,6 +831,10 @@ public final class Configuration {
     @ConfigurationCategory("display")
     public static ConfigurationItem<Boolean> fixAntialiasConflation = null;
     
+    @ConfigurationDefaultBoolean(true)
+    @ConfigurationCategory("display")
+    public static ConfigurationItem<Boolean> autoPlaySounds = null;
+    
     private enum OSId {
         WINDOWS, OSX, UNIX
     }
diff --git a/src/com/jpexs/decompiler/flash/gui/MainPanel.java b/src/com/jpexs/decompiler/flash/gui/MainPanel.java
index a382023ae..d58c523f1 100644
--- a/src/com/jpexs/decompiler/flash/gui/MainPanel.java
+++ b/src/com/jpexs/decompiler/flash/gui/MainPanel.java
@@ -4692,11 +4692,13 @@ public final class MainPanel extends JPanel implements TreeSelectionListener, Se
             previewPanel.setImageReplaceButtonVisible(false, false, false, !((Tag) treeItem).isReadOnly() && (treeItem instanceof DefineSoundTag));
             try {
                 SoundTagPlayer soundThread = new SoundTagPlayer(null, (SoundTag) treeItem, Configuration.loopMedia.get() ? Integer.MAX_VALUE : 1, true);
+                if (!Configuration.autoPlaySounds.get()) {
+                    soundThread.pause();
+                }
                 previewPanel.setMedia(soundThread);
             } catch (LineUnavailableException | IOException | UnsupportedAudioFileException ex) {
                 logger.log(Level.SEVERE, null, ex);
             }
-
         } else if ((treeItem instanceof FontTag) && internalViewer) {
             previewPanel.showFontPanel((FontTag) treeItem);
         } else if ((treeItem instanceof TextTag) && internalViewer) {
diff --git a/src/com/jpexs/decompiler/flash/gui/SoundTagPlayer.java b/src/com/jpexs/decompiler/flash/gui/SoundTagPlayer.java
index c20f9178d..6b490e7a0 100644
--- a/src/com/jpexs/decompiler/flash/gui/SoundTagPlayer.java
+++ b/src/com/jpexs/decompiler/flash/gui/SoundTagPlayer.java
@@ -271,9 +271,7 @@ public class SoundTagPlayer implements MediaDisplay {
 
         loop: while (true) {
 
-            final byte[] data = new byte[16];
-
-            setPausedFlag(false);
+            final byte[] data = new byte[16];            
             setActiveFlag(true);
             long posBytes = 0;
             try {
diff --git a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
index 6d3a6469a..94eb52b92 100644
--- a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
+++ b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
@@ -630,6 +630,9 @@ config.description.warning.video.vlc = Show warning about VLC media player requi
 config.name.playFrameSounds = Play frame sounds
 config.description.playFrameSounds = Play sounds on displaying frames.
 
-config.name.fixAntialiasConflation = Try to fix antialias conflation (SLOW)
-config.description.fixAntialiasConflation = Tries fixing conflation artifacts between adjacent shapes caused by antialiasing. This slows down a rendering.
+config.name.fixAntialiasConflation = Try to fix antialias conflation (EXPERIMENTAL, SLOW)
+config.description.fixAntialiasConflation = Tries fixing conflation artifacts between adjacent shapes caused by antialiasing. This slows down a rendering. Experimental feature.
+
+config.name.autoPlaySounds = Autoplay sounds
+config.description.autoPlaySounds = Automatically play sounds (DefineSound) on treenode selection.
 
diff --git a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
index 1854cb5b9..82f759921 100644
--- a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
+++ b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
@@ -620,5 +620,8 @@ config.description.warning.video.vlc = Zobrazovat varov\u00e1n\u00ed o vy\u017ea
 config.name.playFrameSounds = P\u0159ehr\u00e1vat sn\u00edmkov\u00e9 zvuky
 config.description.playFrameSounds = P\u0159ehr\u00e1vat zvuky p\u0159i zobrazov\u00e1n\u00ed sn\u00edmk\u016f.
 
-config.name.fixAntialiasConflation = Pokusit se opravit antialiasingovou konflaci (POMAL\u00c9)
-config.description.fixAntialiasConflation = Pokus\u00ed se opravit konfla\u010dn\u00ed artefakty mezi p\u0159il\u00e9haj\u00edc\u00edmi tvary zp\u016fsobenou antialiasingem. Toto zpomaluje renderov\u00e1n\u00ed.
+config.name.fixAntialiasConflation = Pokusit se opravit antialiasingovou konflaci (EXPERIMENT\u00c1LN\u00cd, POMAL\u00c9)
+config.description.fixAntialiasConflation = Pokus\u00ed se opravit konfla\u010dn\u00ed artefakty mezi p\u0159il\u00e9haj\u00edc\u00edmi tvary zp\u016fsobenou antialiasingem. Toto zpomaluje renderov\u00e1n\u00ed. Experiment\u00e1ln\u00ed.
+
+config.name.autoPlaySounds = Automaticky p\u0159ehr\u00e1vat zvuky
+config.description.autoPlaySounds = Automaticky p\u0159ehr\u00e1vat zvuky (DefineSound) p\u0159i v\u00fdb\u011bru polo\u017eky ve stromu.
\ No newline at end of file