diff --git a/docs/release-notes-player.txt b/docs/release-notes-player.txt
index 6b56ce45d23ab08de27a68283c99b42de155e251..0759f4a9d8b855d10454239a1f2be1204eddefab 100644
--- a/docs/release-notes-player.txt
+++ b/docs/release-notes-player.txt
@@ -2,7 +2,8 @@ Player
 ======
 1.12.0
 - Fix the playability of dependent audios and videos
-- Fix storing/restoring the playback time of audios and videos
+- Fix storing/restoring of the playback time of audios and videos
+- Fix disabling mute button of audios and videos
 - Fix the response status when re-entering the unit
 - Ignore blank pages when calculating the response progress
 - Fix position of virtual keyboard for text areas
diff --git a/projects/common/components/control-bar/control-bar.component.html b/projects/common/components/control-bar/control-bar.component.html
index e917fdaf1f95c6a684430932d5585e163200fb10..8bdca45418dad81a575c781a5b2d020e1b785e95 100644
--- a/projects/common/components/control-bar/control-bar.component.html
+++ b/projects/common/components/control-bar/control-bar.component.html
@@ -62,6 +62,7 @@
     <button mat-button
             type="button"
             class="control-button"
+            [disabled]="!playerProperties.interactiveMuteControl"
             [class.enabled-control]="playerProperties.interactiveMuteControl"
             (click)="toggleVolume()">
       <mat-icon *ngIf="!player.muted">volume_up</mat-icon>
diff --git a/projects/common/util/unit-interface-initializer.ts b/projects/common/util/unit-interface-initializer.ts
index e9403bc2deb4e37cbbf415a3362a6b3c834de02a..d42fe1959652517b3585a81e1a54409fafb3143e 100644
--- a/projects/common/util/unit-interface-initializer.ts
+++ b/projects/common/util/unit-interface-initializer.ts
@@ -167,7 +167,7 @@ export function initPlayerElement(serializedElement: Partial<UIElement>): Player
     muteControl: serializedElement.muteControl !== undefined ? serializedElement.muteControl as boolean : true,
     interactiveMuteControl:
       serializedElement.interactiveMuteControl !== undefined ?
-        serializedElement.interactiveMuteControl as boolean : true,
+        serializedElement.interactiveMuteControl as boolean : false,
     hintLabel: serializedElement.hintLabel as string || '',
     hintLabelDelay: serializedElement.hintLabelDelay !== undefined ? serializedElement.hintLabelDelay as number : 0,
     uninterruptible: