dont bother coercing muted, it happens automatically

src/compiler/compile/render_dom/wrappers/Element/Binding.ts

@@ -157,10 +157,6 @@ export default class BindingWrapper {
 				mount_conditions.push(x`!@_isNaN(${this.snippet})`);
 				break;
 
-			case 'muted':
-				update_dom = b`${parent.var}.${this.node.name} = !!${this.snippet};`;
-				break;
-
 			case 'paused':
 			{
 				// this is necessary to prevent audio restarting by itself

test/js/samples/media-bindings/expected.js

@@ -87,7 +87,7 @@ function create_fragment(ctx) {
 			}
 
 			if (dirty & /*muted*/ 128) {
-				audio.muted = !!/*muted*/ ctx[7];
+				audio.muted = /*muted*/ ctx[7];
 			}
 
 			if (dirty & /*playbackRate*/ 256 && !isNaN(/*playbackRate*/ ctx[8])) {