Allow user to select audio input device at startup

transcribe.py

@@ -62,18 +62,24 @@ def main():
         model = MarianMTModel.from_pretrained(model_id).to(device)
         translation_engines[lang_name] = (model, tokenizer)
 
-    print("Loading Silero VAD model...")
-    vad_model = load_silero_vad()
+    print("\nAvailable Audio Devices:")
+    devices = sd.query_devices()
+    print(devices)
     
-    print("Models loaded.")
+    try:
+        device_input = input("\nSelect input device index (or press Enter for default): ")
+        device_index = int(device_input) if device_input.strip() else None
+    except ValueError:
+        print("Invalid input, using default device.")
+        device_index = None
 
-    print(f"\nStarting live transcription & multiple translations... (Press Ctrl+C to stop)")
+    print(f"\nStarting live transcription & multiple translations using device {device_index if device_index is not None else 'default'}... (Press Ctrl+C to stop)")
     
     audio_buffer = []
     speech_started = False
 
     try:
-        with sd.InputStream(samplerate=SAMPLERATE, channels=CHANNELS, callback=callback, blocksize=BLOCK_SIZE):
+        with sd.InputStream(samplerate=SAMPLERATE, channels=CHANNELS, callback=callback, blocksize=BLOCK_SIZE, device=device_index):
             while True:
                 while not audio_queue.empty():
                     data = audio_queue.get()