diff --git a/routes/audio_mixing.py b/routes/audio_mixing.py
index 6b7d10e..fc0cd03 100644
--- a/routes/audio_mixing.py
+++ b/routes/audio_mixing.py
@@ -42,9 +42,10 @@ def process_job():
                 if webhook_url:
                     send_webhook(webhook_url, {
                         "endpoint": "/audio-mixing",
+                        "code": 200,
                         "id": id,
+                        "job_id": job_id,
                         "response": gcs_url,
-                        "code": 200,
                         "message": "success"
                     })
             except Exception as e:
@@ -52,12 +53,20 @@ def process_job():
                 if webhook_url:
                     send_webhook(webhook_url, {
                         "endpoint": "/audio-mixing",
+                        "code": 500,
                         "id": id,
+                        "job_id": job_id,
                         "response": None,
-                        "code": 500,
                         "message": str(e)
                     })
 
     # Start the thread with the app context passed
     threading.Thread(target=process_job, daemon=True).start()
-    return jsonify({"message": "processing"}), 202
\ No newline at end of file
+    return jsonify(
+            {
+                "code": 202,
+                "id": data.get("id"),
+                "job_id": job_id,
+                "message": "processing"
+            }
+        ), 202
\ No newline at end of file
diff --git a/routes/transcribe.py b/routes/transcribe.py
index 6438af2..53d5c90 100644
--- a/routes/transcribe.py
+++ b/routes/transcribe.py
@@ -28,12 +28,12 @@ def transcription_worker():
 worker_thread = threading.Thread(target=transcription_worker, daemon=True)
 worker_thread.start()
 
-def process_job(**kwargs):
-    media_url = kwargs['media_url']
-    output = kwargs['output']
-    webhook_url = kwargs['webhook_url']
-    id = kwargs['id']
-    job_id = kwargs['job_id']
+def process_job(media_url, output, webhook_url, id, job_id):
+    #media_url = kwargs['media_url']
+    #output = kwargs['output']
+    #webhook_url = kwargs['webhook_url']
+    #id = kwargs['id']
+    #job_id = kwargs['job_id']
     
     try:
         logger.info(f"Job {job_id}: Starting transcription process for {media_url}")
@@ -50,6 +50,8 @@ def process_job(**kwargs):
                 "response": result,
                 "message": "success"
             })
+        else:
+            return result;
     except Exception as e:
         logger.error(f"Job {job_id}: Error during transcription - {e}")
         if webhook_url:
@@ -112,7 +114,7 @@ def transcribe():
     else:
         try:
             logger.info(f"Job {job_id}: No webhook provided, processing synchronously")
-            result = process_transcription(media_url, output)
+            result = process_job(media_url=media_url, output=output)
             logger.info(f"Job {job_id}: Returning transcription result")
             return jsonify({
                     "code": 200,
diff --git a/services/audio_mixing.py b/services/audio_mixing.py
index ddac99b..6a20aef 100644
--- a/services/audio_mixing.py
+++ b/services/audio_mixing.py
@@ -6,21 +6,56 @@
 STORAGE_PATH = "/tmp/"
 
 def process_audio_mixing(video_url, audio_url, video_vol, audio_vol, output_length, job_id, webhook_url=None):
+    
     video_path = download_file(video_url, STORAGE_PATH)
     audio_path = download_file(audio_url, STORAGE_PATH)
     output_path = os.path.join(STORAGE_PATH, f"{job_id}.mp4")
 
-    # Apply volume filters and mix audio
+
+    # Prepare FFmpeg inputs
     video = ffmpeg.input(video_path)
     audio = ffmpeg.input(audio_path)
-    video_audio = video.audio.filter('volume', volume=video_vol / 100.0)
-    input_audio = audio.filter('volume', volume=audio_vol / 100.0)
-    mixed_audio = ffmpeg.filter([video_audio, input_audio], 'amix', duration='longest')
 
-    if output_length == 'audio':
-        output = ffmpeg.output(video.video, mixed_audio, output_path, shortest=None)
+    # Apply volume filters
+    video_audio = video.audio.filter('volume', volume=f"{video_vol/100}")
+    input_audio = audio.filter('volume', volume=f"{audio_vol/100}")
+
+    # Get video and audio durations
+    video_info = ffmpeg.probe(video_path)
+    audio_info = ffmpeg.probe(audio_path)
+    video_duration = float(video_info['streams'][0]['duration'])
+    audio_duration = float(audio_info['streams'][0]['duration'])
+
+    # Determine output duration
+    if output_length == 'video':
+        output_duration = video_duration
     else:
-        output = ffmpeg.output(video.video, mixed_audio, output_path, shortest=None)
+        output_duration = audio_duration
+
+    # Trim or pad audio
+    if output_duration > audio_duration:
+        input_audio = ffmpeg.filter([input_audio], 'apad', pad_dur=output_duration-audio_duration)
+    else:
+        input_audio = input_audio.filter('atrim', duration=output_duration)
+
+    # Mix audio
+    mixed_audio = ffmpeg.filter([video_audio, input_audio], 'amix', inputs=2)
+
+    # Trim or pad video
+    if output_duration > video_duration:
+        video = ffmpeg.filter([video], 'tpad', stop_duration=output_duration-video_duration)
+    else:
+        video = video.trim(duration=output_duration)
+
+    # Combine video and mixed audio
+    output = ffmpeg.output(video, mixed_audio, output_path,
+                            vcodec='libx264', acodec='aac', strict='experimental')
+
+    # Run FFmpeg command
+    ffmpeg.run(output, overwrite_output=True)
+
+    # Clean up input files
+    os.remove(video_path)
+    os.remove(audio_path)
 
-    ffmpeg.run(output)
-    return output_path
+    return output_path
\ No newline at end of file