Scenario ElevenLabs Audio

Overview

ElevenLabs covers five audio lanes on Scenario: speech, music, sound effects, dubbing, and voice transforms. Eleven members ship side by side at authoring time, one job each: the deciding move is picking the right member, not coaxing one model into a mode. Discover them with search and treat model_schema_get as the contract: the members agree on almost nothing.

Connection and the core loop: see the scenario skill in this repo; model-agnostic audio work: the scenario-audio skill. If a sibling skill named here is missing from your available skills, ask the user to install it (npx skills add scenario-labs/skills --skill <name>); unattended, proceed from tool schemas and flag the gap.

Quick reference

Job	Member	Deciding inputs
Expressive speech, dialog	Eleven v3	text with inline tags
Narration, pinned language	Multilingual 2	languageCode
Fast or bulk speech	Turbo 2.5	same shape, lower cost
Music from one prompt	Music v2	prompt, durationSeconds, forceInstrumental
Structured song	Music Advanced v2	required sections array
SFX and loops	Sound Effects 2	text, promptInfluence, loop
Localize, protect names	Dubbing v2	file, targetLang, keyterms
Localize, speaker control	Dubbing	numSpeakers, dropBackgroundAudio
Re-voice a recording	Speech to Speech, Voice Changer	audio (up to 5 min) plus a voice
Clean a noisy voice	Voice Isolator	audio

The speaking members share one voice contract: voiceId takes a cloned ElevenLabs voice and always wins; publicVoice picks a preset (21 at authoring time) and is ignored beside it; neither set means the Adam preset. Voice Changer is Speech to Speech plus delivery dials (stability, similarityBoost, styleExaggeration, useSpeakerBoost). WAV output exists on the TTS members alone; outputFormat elsewhere is MP3 or Opus, absent on Dubbing and Voice Isolator. seed gives repeatability, except on Sound Effects 2, both Dubbing members, and Voice Isolator. Cost rides the content: text on TTS (40,000 characters at authoring time), durationSeconds on Music v2, sections on Advanced, file or audio on the dubbing and voice members, so dry_run long jobs and member comparisons.

Speech: tags on v3, dials elsewhere

Eleven v3 reads inline audio tags in the text, [whispers], [excited], [sighs], to steer delivery moment to moment across 70+ languages, and carries multi-speaker dialogue. Multilingual 2 and Turbo 2.5 do not read tags: direction there lives in stability, styleExaggeration, and speed (0.7 to 1.2), and languageCode (ISO 639-1) pins the language, a field v3 lacks. Turbo trades expressiveness for cost, roughly half the other two per run at authoring time.

Music: one prompt or thirty sections

Music v2 takes one prompt (mood, genre, instruments, tempo), durationSeconds (3 to 600 at authoring time, cost impact), and forceInstrumental to suppress vocals: asking in prose is unreliable. Music Advanced v2 requires sections, up to 30 ordered segments at authoring time, each with text, its own durationSeconds (3 to 120), positiveStyles and negativeStyles (up to 10 each), and contextAdherence (high binds a segment to its neighbors, low frees it). Section grammar: square brackets label ([Verse], [Chorus]), curly braces direct ({soft piano intro}), and plain text is sung as lyrics. Advanced has no instrumental flag, so any plain text will be sung. Neither music member takes numOutputs: one run is one composition, and sung lyrics land differently on every draw, so a batch of takes is several parallel runs with distinct seed values, each priced alone on its duration, which costs what a batch field would have and returns separate files with real boundaries. Two [Verse] blocks in one run to get two takes returns one file with no split point.

Dubbing replaces the track, not the lips

Both Dubbing members take an audio or video file with a required targetLang, and the output follows the input kind: video in, dubbed video out. Neither re-animates lips. Source auto-detection is spelled differently: sourceLang: "auto" on v2, an empty string on the older member. Pick v2 for keyterms (names, brands, and jargon preserved verbatim through translation); pick the older Dubbing for numSpeakers (0 auto-detects, up to 10), dropBackgroundAudio, disableVoiceCloning, and highestResolution video. Their prices differ several-fold, so dry_run both when either fits. Speech to Speech, Voice Changer and Voice Isolator, by contrast, take audio only, whatever the catalog blurb says: for a clip, pull the track with model_scenario-audio-extract, run the member, then lay the result over the clip in model_scenario-compose-video, the clip as a video layer with mute: true (fixed ids: each is Scenario's single deterministic tool for its operation, so discovery would only re-derive it). The same compositor lays a Music v2 bed under a video; layer contract in scenario-video-assembly.

Worked example: dub a trailer into Spanish

1. search with target="models", query="elevenlabs dubbing", public=true. Prefer the newest non-deprecated hit, e.g. model_elevenlabs-dubbing-v2 (a live hit at authoring time: re-discover each session).
2. model_schema_get with that id: fields and defaults before anything else.
3. upload_asset the trailer video (see the scenario skill) to get an asset id.
4. model_run with that model_id, dry_run=true, and the exact parameters={"file": "asset_x", "targetLang": "es", "keyterms": ["Aetherfall", "Kestrel Squad"]}. The file drives the price: re-estimate per input.
5. Repeat model_run with wait=false, then jobs_wait with the returned job id, re-called with pending_job_ids on timeout, never a second model_run.
6. asset_display the result (a video, because the input was) and confirm the keyterms survived; asset_download with no format to save it.

Common mistakes

• Setting publicVoice next to voiceId and expecting it to apply: a set voiceId always wins.
• Inline tags on Multilingual 2 or Turbo 2.5: that grammar is Eleven v3's; elsewhere a tag can be read aloud.
• Writing "instrumental" in a Music v2 prompt instead of setting forceInstrumental; on Music Advanced there is no flag and plain section text is always sung.
• Expecting lip-sync from Dubbing: the track changes, the picture does not.
• Reaching for numOutputs on the music members, or repeating one long run hoping for a different take without changing seed: same seed and settings reproduce the same music.
• Carrying one member's caps to another: 40,000 characters, 600 seconds, 30 sections, and 5 minutes of input audio are each true of one lane and false of the next.