Generate AI voiceovers, sound effects, and music using ElevenLabs APIs. Use when creating audio content for videos, podcasts, or games. Triggers include generating voiceovers, narration, dialogue, sound effects from descriptions, background music, soundtrack generation, voice cloning, or any audio s

ElevenLabs Audio Generation Requires ELEVENLABS API KEY in .env . Text to Speech Models Model Quality SSML Support Notes eleven multilingual v2 Highest consistency None Stable, production ready, 29 languages eleven flash v2 5 Good <break , <phoneme Fast, supports pause/pronunciation tags eleven turbo v2 5 Good <break , <phoneme Fastest latency eleven v3 Most expressive None Alpha — unreliable, needs prompt engineering Choose: multilingual v2 for reliability, flash/turbo for SSML control, v3 for maximum expressiveness (expect retakes). Voice Settings by Style Style stability similarity style speed Natural/professional 0.75 0.85 0.9 0.0 0.1 1.0 Conversational 0.5 0.6 0.85 0.3 0.4 0.9 1.0 Energetic/YouTuber 0.3 0.5 0.75 0.5 0.7 1.0 1.1 Pauses Between Sections With flash/turbo models: Use SSML break tags inline: Max 3 seconds per break. Excessive breaks can cause speed artifacts. With multilingual v2 / v3: No SSML support. Options: Paragraph breaks (blank lines) — creates ~0.3 0.5s natural pause Post process with ffmpeg: split audio and insert silence WARNING: ... (ellipsis) is NOT a reliable pause — it can be vocalized as a word/sound. Do not use ellipsis as a pause mechanism. Pronunciation Control Phonetic spelling (any model): Write words as you want them pronounced: Janus → Jan us nginx → engine x Use dashes, capitals, apostrophes to guide pronunciation SSML phoneme tags (flash/turbo only): Iterative Workflow 1. Generate → listen → identify pronunciation/pacing issues 2. Adjust: phonetic spellings, break tags, voice settings 3. Regenerate. If pauses aren't precise enough, add silence in post with ffmpeg rather than fighting the TTS engine. Voice Cloning Instant Voice Clone Use client.voices.ivc.create() (not client.voices.clone() ) Pass file handles in binary mode ( "rb" ), not paths Convert m4a first: ffmpeg i input.m4a codec:a libmp3lame qscale:a 2 output.mp3 Multiple samples (2 3 clips) improve accuracy Save voice ID for reuse Professional Voice Clone: Requires Creator plan+, 30+ min audio. See [reference.md](reference.md). Sound Effects Max 22 seconds per generation. Prompt tips: Be specific — "Heavy footsteps on wooden floorboards, slow and deliberate, with creaking" Music Generation 10 seconds to 5 minutes. Use client.music.compose() (not .generate() ). Prompt structure: Genre, mood, instruments, tempo, use case. Add "no vocals" or use force instrumental=True for background music. Remotion Integration Complete Workflow: Script to Synchronized Scene Step 1: Generate Per Scene Audio Use the toolkit's voiceover tool to generate audio for each scene: The manifest.json contains timing info: Step 2: Use Audio in Remotion Composition Step 3: Per Scene Audio (Alternative) For more control, add audio to each scene individually: Syncing Visuals to Voiceover Calculate scene duration from audio, not the other way around: Audio Timing Patterns Voiceover + Demo Video Sync When a scene has both voiceover and demo video: Error Handling Toolkit Command: /generate voiceover The /generate voiceover command handles the full workflow: Popular Voices George: JBFqnCBsd6RMkjVDRZzb (warm narrator) Rachel: 21m00Tcm4TlvDq8ikWAM (clear female) Adam: pNInz6obpgDQGcFmaJgB (professional male) List all: client.voices.get all() For full API docs, see [reference.md](reference.md).

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