generate a different FFMPEG command for webm to wav specifically , to fix white noise output issue. Stil ldont know why this was happening.

app.py

@@ -60,9 +60,9 @@ def trim_video_helper(input_file, output_file, start_time, end_time):
 
 def convert_video_helper(input_file, output_file, output_format):
     # convert video
-    print("start converting")
+    print(f"convert_video_helper: converting {input_file} to {output_format}")
     output_file = convert_and_trim_video(input_file.name, output_file)
-    print("finished converting")
+    print("convert_video_helper: finished converting")
     return output_file
 
 def convert_transcript_helper(input_transcript, output_transcript):
@@ -174,10 +174,10 @@ def convert_video(input_file, output_format):
         output_folder = f"{os.getcwd()}/results_vc/"
         output_file = set_output_file(input_file, output_format, output_folder, \
                                       insert_string = 'converted')
-        print("Begin converting to output format: ", output_format)
+        print(f"Begin converting to output format: {output_format}" )
         # Convert video
         output_file = convert_video_helper(input_file, output_file, output_format)
-        print("created output file: ", output_file)
+        print(f"created output file: {output_file}")
         # remove file after 10 minutes for security 
         print("Done converting. start deleting files")
         path_to_delete = [input_file.name, output_file]
@@ -199,7 +199,7 @@ interface = gr.Interface(fn=trim_video, inputs=[input_file, output_format, start
 
 # gr components for video converter
 input_file_c = gr.File(label="Select video file")
-output_format_c = gr.Dropdown(choices=["mkv", "MOV", "mp4", "wav"], label="Select output format", value="mp4",)
+output_format_c = gr.Dropdown(choices=["mkv", "MOV", "mp4", "wav"], label="Select output format", value="wav",)
 output_file_c = gr.File(label="Download converted file")
 
 interface_c = gr.Interface(fn=convert_video, inputs=[input_file_c, output_format_c], outputs=output_file_c, title="Video Converter", allow_flagging="never",

utils.py

@@ -214,26 +214,24 @@ def convert_and_trim_video(media_in, media_out, start=None, end=None):
             logging.info(f'...Using ffmpeg to convert {in_ext} to {out_ext}...')
 
         if out_ext == '.wav':
-            # convert to wav with standard format for audio models
-            command = [
-                'ffmpeg', 
-                "-f", "s16le",
-                '-y', 
-                '-i', media_in, 
-                *trim_command,
-                '-vn',
-                '-acodec', 'pcm_s16le', 
-                '-ac', str(WAV_CHANNELS), 
-                '-ar', str(WAV_SAMPLE_RATE), 
-                media_out, 
-                '-hide_banner', '-loglevel', 'warning']
-            logging.info(f"FFMPEG command: {' '.join(command)}")
-            process = subprocess.run(command, capture_output=True, text=True)
-            if process.returncode != 0:
-                logging.info(f"FFMPEG error: {process.stderr}")
-            else:
-                logging.info(process.stdout)
-            return media_out
+            if in_ext == '.webm':
+                command = ['ffmpeg', '-i', media_in, *trim_command, media_out, 
+                    '-hide_banner', '-loglevel', 'warning']
+
+            else: 
+                # convert to wav with standard format for audio models
+                command = [
+                    'ffmpeg', 
+                    "-f", "s16le",
+                    '-y', 
+                    '-i', media_in, 
+                    *trim_command,
+                    '-vn',
+                    '-acodec', 'pcm_s16le', 
+                    '-ac', str(WAV_CHANNELS), 
+                    '-ar', str(WAV_SAMPLE_RATE), 
+                    media_out, 
+                    '-hide_banner', '-loglevel', 'warning']
 
         else: # convert using copy codec 
             if in_ext == '.webm':
@@ -245,13 +243,6 @@ def convert_and_trim_video(media_in, media_out, start=None, end=None):
                 '-acodec', 'aac', 
                 media_out,
                 '-hide_banner', '-loglevel', 'warning']
-                logging.info(f"FFMPEG command: {' '.join(command)}")
-                process = subprocess.run(command, capture_output=True, text=True)
-                if process.returncode != 0:
-                    logging.info(f"FFMPEG error: {process.stderr}")
-                else:
-                    logging.info(process.stdout)
-                return media_out
             else: # not webm
                 command = ['ffmpeg',
                                 '-y',
@@ -260,13 +251,15 @@ def convert_and_trim_video(media_in, media_out, start=None, end=None):
                                 '-c','copy',
                                 media_out,
                                 '-hide_banner', '-loglevel', 'warning']
-                logging.info(f"FFMPEG command: {' '.join(command)}")
-                process = subprocess.run(command, check=True)
-                if process.returncode != 0:
-                    logging.info(f"FFMPEG error: {process.stderr}")
-                else:
-                    logging.info(process.stdout)
-                return media_out
+
+        # run the ffmpeg command
+        logging.info(f"FFMPEG command: {' '.join(command)}")
+        process = subprocess.run(command, capture_output=True, text=True)
+        if process.returncode != 0:
+            logging.info(f"FFMPEG error: {process.stderr}")
+        else:
+            logging.info(process.stdout)
+        return media_out
 
     except Exception as e:
         logging.error(f"Error converting video format: {e}")