Initial commit: AI Radio Show web application

- FastAPI backend with multiple TTS providers (Inworld, ElevenLabs, Kokoro, F5-TTS, etc.)
- Web frontend with caller management, music, and soundboard
- Whisper transcription integration
- OpenRouter/Ollama LLM support
- Castopod podcast publishing script

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

generate_sounds.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+"""
+Generate sound effects using ElevenLabs Sound Effects API
+"""
+
+import os
+from pathlib import Path
+from dotenv import load_dotenv
+
+load_dotenv()
+
+SOUNDS_DIR = Path(__file__).parent / "sounds"
+SOUNDS_DIR.mkdir(exist_ok=True)
+
+# Sound effects to generate with descriptions
+SOUND_EFFECTS = {
+    'airhorn.wav': 'loud air horn blast, sports event',
+    'boo.wav': 'crowd booing, disappointed audience',
+    'crickets.wav': 'crickets chirping, awkward silence',
+    'drumroll.wav': 'drum roll, building suspense',
+    'buzzer.wav': 'game show wrong answer buzzer',
+    'laugh.wav': 'audience laughing, sitcom laugh track',
+    'rimshot.wav': 'ba dum tss, drum rimshot comedy',
+    'sad_trombone.wav': 'sad trombone, wah wah wah failure sound',
+    'phone_ring.wav': 'old telephone ringing',
+    'cheer.wav': 'crowd cheering and applauding',
+    'scratch.wav': 'vinyl record scratch',
+    'wow.wav': 'crowd saying wow, impressed reaction',
+    'fart.wav': 'comedic fart sound effect',
+    'victory.wav': 'victory fanfare, triumphant horns',
+    'uh_oh.wav': 'uh oh, something went wrong sound',
+}
+
+def generate_sound(name, description):
+    """Generate a sound effect using ElevenLabs"""
+    from elevenlabs.client import ElevenLabs
+    import soundfile as sf
+    import numpy as np
+
+    output_path = SOUNDS_DIR / name
+
+    if output_path.exists():
+        print(f"  ✓ {name} (already exists)")
+        return True
+
+    try:
+        print(f"  Generating {name}: '{description}'...")
+
+        client = ElevenLabs(api_key=os.getenv('ELEVENLABS_API_KEY'))
+
+        # Generate sound effect
+        result = client.text_to_sound_effects.convert(
+            text=description,
+            duration_seconds=2.0,
+        )
+
+        # Collect audio data
+        audio_data = b''.join(result)
+
+        # Save as mp3 first, then convert
+        temp_mp3 = SOUNDS_DIR / f"temp_{name}.mp3"
+        with open(temp_mp3, 'wb') as f:
+            f.write(audio_data)
+
+        # Convert to wav with ffmpeg
+        import subprocess
+        subprocess.run([
+            'ffmpeg', '-y', '-i', str(temp_mp3),
+            '-ar', '24000', '-ac', '1',
+            str(output_path)
+        ], capture_output=True, check=True)
+
+        temp_mp3.unlink()
+        print(f"  ✓ {name}")
+        return True
+
+    except Exception as e:
+        print(f"  ✗ {name} ({e})")
+        return False
+
+def main():
+    print("Generating sound effects with ElevenLabs...")
+    print(f"Saving to: {SOUNDS_DIR}")
+    print("(This uses your ElevenLabs credits)\n")
+
+    # Check for ffmpeg
+    import subprocess
+    try:
+        subprocess.run(['ffmpeg', '-version'], capture_output=True, check=True)
+    except:
+        print("ERROR: ffmpeg required. Install with: brew install ffmpeg")
+        return
+
+    success = 0
+    for name, description in SOUND_EFFECTS.items():
+        if generate_sound(name, description):
+            success += 1
+
+    print(f"\nGenerated {success}/{len(SOUND_EFFECTS)} sounds.")
+
+if __name__ == "__main__":
+    main()