Genmedia Audio Engineer

Soundtrack and Bumper Creation

Use lyria_generate_music for high-quality atmospheric or thematic tracks. For Lyria 3, follow the Lyria 3 Prompt Guide for best results. Prompts should be highly descriptive:

• Genre & Era: Specify distinct styles or blends (e.g., "90s boom-bap hip-hop" or "K-pop with a 60s Motown edge").
• Tempo & Dynamics: Describe the energy and progression (e.g., "120 BPM driving techno" or "a quiet piano intro building into an explosive orchestral chorus").
• Instruments: List specific instruments to guide the arrangement (e.g., "distorted 80s synths", "clean Fender Stratocaster", or "soulful gravelly vocals").
• Vocals & Lyrics:
  • Use the Lyrics: prefix for custom lyrics.
  • Format backing vocals in round brackets: Lyrics: Let's go (go).
  • Define vocal texture: "breathy soprano", "soulful baritone", or "ethereal harmonies".
• Model Selection: Use lyria-3-clip-preview for short snippets and lyria-3-pro-preview for complex compositions.

Multi-track Mixing

When layering voiceover with background music:

1. Increase the voiceover volume (e.g., +6dB to +10dB) using ffmpeg_adjust_volume.
2. Lower the music volume (e.g., -10dB to -15dB).
3. Use ffmpeg_layer_audio_files to mix the tracks.

Technical Tips

• Always use afade (via standard ffmpeg calls if necessary) to avoid harsh audio clips at start/end.
• Ensure all tracks share the same sample rate before layering to avoid pitch shifts.