diff --git a/packages/backend/src/server/api/endpoints/notes/tts.ts b/packages/backend/src/server/api/endpoints/notes/tts.ts
index 0238456947..2012c0e190 100644
--- a/packages/backend/src/server/api/endpoints/notes/tts.ts
+++ b/packages/backend/src/server/api/endpoints/notes/tts.ts
@@ -92,6 +92,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				headers: {
 					'Content-Type': 'application/json',
 					'Authorization': 'Bearer ' + instance.hfAuthKey,
+					Accept: 'audio/flac, */*',
 				},
 				body: JSON.stringify({
                     inputs: note.text,
@@ -99,18 +100,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
                 timeout: 60000,
 			});
 
-			let contentType = res.headers.get('content-type') || 'application/octet-stream';
+			let contentType = res.headers.get('Content-Type') || 'application/octet-stream';
 
-			if (res.headers.get('content-type') === 'audio/flac') {
-                return {
-					body: res.body,
-					headers: {
-						'Content-Type': contentType,
-					}
-				};
-            } else {
-                throw new ApiError(meta.errors.unavailable);
-            }
+			if (contentType === 'audio/flac') {
+				return res.body;
+			} else {
+				throw new ApiError(meta.errors.unavailable);
+			}
+			
 		});
 	}
 }
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index 202c3998b2..67ebc44658 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -623,17 +623,16 @@ function emitUpdReaction(emoji: string, delta: number) {
 }
 
 watch(convert, (newBlob) => {
-  	if (converturl.value && converturl.value.url) {
-    	URL.revokeObjectURL(converturl.value.url);
-  	}
-
-  	if (newBlob) {
-    	converturl.value = { url: newBlob };
-  	} else {
-    	converturl.value = null;
-  	}
+	try {
+	  	if (newBlob) {
+    		converturl.value = { url: newBlob };
+  		} else {
+    		converturl.value = null;
+  		}
+	} catch (error) {
+  		console.error('Failed to create URL:', error);
+	}
 });
-console.log(converturl)
 
 onUnmounted(() => {
   if (converturl.value && converturl.value.url) {
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 157f20a279..8a160c8598 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -558,16 +558,6 @@ function loadConversation() {
 }
 
 watch(convert, (newBlob) => {
-	/*
-	try {
-  		if (converturl.value && converturl.value.url) {
-    		URL.revokeObjectURL(converturl.value.url);
-  		}
-	} catch (error) {
-  		console.error('Failed to revoke URL:', error);
-	}
-	*/
-
 	try {
 	  	if (newBlob) {
     		converturl.value = { url: newBlob };
@@ -577,7 +567,6 @@ watch(convert, (newBlob) => {
 	} catch (error) {
   		console.error('Failed to create URL:', error);
 	}
-
 });
 
 onUnmounted(() => {
diff --git a/packages/frontend/src/scripts/get-note-menu.ts b/packages/frontend/src/scripts/get-note-menu.ts
index 1432efe97e..d8bfea8f69 100644
--- a/packages/frontend/src/scripts/get-note-menu.ts
+++ b/packages/frontend/src/scripts/get-note-menu.ts
@@ -302,27 +302,32 @@ export function getNoteMenu(props: {
 	async function convert(): Promise<void> {
 		if (props.convert.value != null) return;
 		props.converting.value = true;
+
 		const res = await misskeyApi('notes/tts', {
 			noteId: appearNote.id,
 		}, undefined, undefined, true);
 
-		const convertdata = await res.json();
-		const contentType = convertdata.headers['Content-Type'];
-
-		if (contentType?.startsWith('audio/')) {
-			console.log('Buffer:', convertdata.body._readableState.buffer[0].data);
-
-			const buffers = new Uint8Array(convertdata.body._readableState.buffer[0].data).buffer;
-
-			try {
-				const blob = new Blob([buffers], { type: contentType });
-				props.convert.value = URL.createObjectURL(blob);
-			} catch (e) {
-				console.error('Failed to create Blob or Object URL:', e);
+		try {
+			if (res.body instanceof ReadableStream) {
+				const reader = res.body.getReader();
+				const chunks: Uint8Array[] = [];
+	
+				while (true) {
+					const { done, value } = await reader.read();
+					if (done) break;
+					chunks.push(value);
+				}
+	
+				const audioBlob = new Blob(chunks, { type: 'audio/flac' });
+	
+				props.convert.value = URL.createObjectURL(audioBlob);
+			} else {
+				console.error('Response body is not a ReadableStream');
 			}
-		} else {
-			console.error('API did not return audio data.');
+		} catch (e) {
+			console.error('Failed to create Blob or Object URL:', e);
 		}
+	
 		props.converting.value = false;
 	}
 
@@ -382,7 +387,7 @@ export function getNoteMenu(props: {
 
 		if ($i.policies.canUseTTS && instance.ttsAvailable) {
 			menuItems.push({
-				icon: 'ti ti-headphone',
+				icon: 'ti ti-headphones',
 				text: 'TTS',
 				action: convert,
 			});
diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index d39c6829ff..d1079769dd 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -2773,7 +2773,7 @@ type NotesTranslateResponse = operations['notes___translate']['responses']['200'
 type NotesTTSRequest = operations['notes___tts']['requestBody']['content']['application/json'];
 
 // @public (undocumented)
-type NotesTTSResponse = operations['notes___tts']['responses']['200']['content']['audio/flac'];
+type NotesTTSResponse = unknown;
 
 // @public (undocumented)
 type NotesUnrenoteRequest = operations['notes___unrenote']['requestBody']['content']['application/json'];
diff --git a/packages/misskey-js/src/autogen/entities.ts b/packages/misskey-js/src/autogen/entities.ts
index 354b9af078..e416df51e9 100644
--- a/packages/misskey-js/src/autogen/entities.ts
+++ b/packages/misskey-js/src/autogen/entities.ts
@@ -452,7 +452,7 @@ export type NotesTimelineResponse = operations['notes___timeline']['responses'][
 export type NotesTranslateRequest = operations['notes___translate']['requestBody']['content']['application/json'];
 export type NotesTranslateResponse = operations['notes___translate']['responses']['200']['content']['application/json'];
 export type NotesTTSRequest = operations['notes___tts']['requestBody']['content']['application/json'];
-export type NotesTTSResponse = operations['notes___tts']['responses']['200']['content']['audio/flac'];
+export type NotesTTSResponse = unknown;
 export type NotesUnrenoteRequest = operations['notes___unrenote']['requestBody']['content']['application/json'];
 export type NotesUserListTimelineRequest = operations['notes___user-list-timeline']['requestBody']['content']['application/json'];
 export type NotesUserListTimelineResponse = operations['notes___user-list-timeline']['responses']['200']['content']['application/json'];