From ec688d809fa86dd4b5bd3d8b12112896e2ae1ef3 Mon Sep 17 00:00:00 2001
From: Lucenx9 <185146821+Lucenx9@users.noreply.github.com>
Date: Mon, 2 Mar 2026 23:59:32 +0100
Subject: [PATCH] fix(media): normalize MIME kind detection for audio
 transcription

---
 src/media-understanding/apply.test.ts | 38 +++++++++++++++++++++++++++
 src/media/mime.ts                     |  2 +-
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/src/media-understanding/apply.test.ts b/src/media-understanding/apply.test.ts
index e35259c267e..5b574c0167b 100644
--- a/src/media-understanding/apply.test.ts
+++ b/src/media-understanding/apply.test.ts
@@ -361,6 +361,44 @@ describe("applyMediaUnderstanding", () => {
     expect(ctx.Body).toBe("[Audio]\nTranscript:\nremote transcript");
   });
 
+  it("transcribes WhatsApp audio with parameterized MIME despite casing/whitespace", async () => {
+    const ctx = await createAudioCtx({
+      fileName: "voice-note",
+      mediaType: " Audio/Ogg; codecs=opus ",
+    });
+    ctx.ChatType = "direct";
+    ctx.Surface = "whatsapp";
+
+    const cfg: OpenClawConfig = {
+      tools: {
+        media: {
+          audio: {
+            enabled: true,
+            maxBytes: 1024 * 1024,
+            scope: {
+              default: "deny",
+              rules: [
+                { action: "allow", match: { chatType: "dm" } },
+                { action: "allow", match: { channel: "whatsapp" } },
+              ],
+            },
+            models: [{ provider: "groq" }],
+          },
+        },
+      },
+    };
+
+    const result = await applyMediaUnderstanding({
+      ctx,
+      cfg,
+      providers: createGroqProviders("whatsapp transcript"),
+    });
+
+    expect(result.appliedAudio).toBe(true);
+    expect(ctx.Transcript).toBe("whatsapp transcript");
+    expect(ctx.Body).toBe("[Audio]\nTranscript:\nwhatsapp transcript");
+  });
+
   it("skips URL-only audio when remote file is too small", async () => {
     // Override the default mock to return a tiny buffer (below MIN_AUDIO_FILE_BYTES)
     mockedFetchRemoteMedia.mockResolvedValueOnce({
diff --git a/src/media/mime.ts b/src/media/mime.ts
index 85f4962b43d..fced9c61236 100644
--- a/src/media/mime.ts
+++ b/src/media/mime.ts
@@ -188,5 +188,5 @@ export function imageMimeFromFormat(format?: string | null): string | undefined
 }
 
 export function kindFromMime(mime?: string | null): MediaKind {
-  return mediaKindFromMime(mime);
+  return mediaKindFromMime(normalizeMimeType(mime));
 }