Schema Summary
ProductionFlagship23 params1 required
/create-voice-elevenlabs
Validation
1 validation issues
Dynamic inputs regenerate when provider/model changes.
Creative Intent
Prompting, language, style, moderation
Requiredstring
Required
Optionalfloat
0 → 1
AI Prompt Enhancement
Refine and expand your prompt with AI for better results
Output & Composition
Size, ratio, quality, format
Generation Controls
Seed, counts, tuning, safety, locked model params
OptionalstringLocked
eleven_v3
Optionalstring
Default: 21m00Tcm4TlvDq8ikWAM
Optionalfloat
0 → 1
Optionalfloat
0 → 1
Optionalboolean
Enabled
Optionalfloat
0.7 → 1.2
Optionalinteger
0 → 4294967295
Optionalstring
Optionalstring
Optionalstring
Optionalarray
Optionalarray
Optionalarray
Reference System
Source images, references, control assets, passthrough inputs
This model has no reference-based inputs.
Live Preview
Primary Output Canvas
Ready to generate
Fill in the prompt and click Generate to create your voice
Request Preview
Live JSON Payload
Dynamic
{
  "model": "eleven_v3",
  "voice_id": "21m00Tcm4TlvDq8ikWAM",
  "stability": 0.5,
  "similarity_boost": 0.75,
  "style": 0,
  "use_speaker_boost": true,
  "output_format": "mp3_44100_128",
  "language": "en",
  "previous_request_ids": [],
  "next_request_ids": [],
  "pronunciation_dictionary_ids": []
}
Schema Inspector
Provider / Model Contract
Provider
ElevenLabs
Model
Eleven v3
Endpoint
/create-voice-elevenlabs
Response
zip
Required Params
1

Voice Studio — AI Voice Synthesis and Narration

BeforeTomorrow Voice Studio generates professional voiceovers, narration, and speech synthesis. AI handles tone, pacing, emotion, and multi-language voice generation with natural prosody.

How does BeforeTomorrow Voice Studio work?

Voice Studiouses BeforeTomorrow's domain engineering approach: rather than a generic AI prompt, it deploys specialized agents trained in the multimedia production and audiovisual domain. When you submit a brief, Claude Opus 4.6 handles creative judgment while Sonnet 4.6 manages intelligence extraction — together producing original audio content with proper arrangement, mixing, and tonal quality.

Unlike stock asset libraries, every Voice Studio output is uniquely generated from scratch — adapting to your industry (across 140+ supported industries), audience, and specific goals. No two outputs are identical because the AI composes each piece individually rather than filling a template.

Voice Studio at a glance

  • • Category: Multimedia & Audio/Video
  • • AI: Claude Opus 4.6 + Sonnet 4.6
  • • Platform: 48 studios total on BeforeTomorrow
  • • Industries: 140+ with domain-specific knowledge
  • • Pricing: Pay-per-generation from $3
  • • Output: Unique per generation (no templates)
  • • Data: EU residency (AWS Bedrock)
  • • Rights: Full commercial usage included
  • • Related: Music Studio, SFX Studio, Podcast Studio, Video Studio
  • • Subscription: Not required

Frequently asked questions about Voice Studio

How natural does it sound?

Frontier AI voice models produce natural prosody, emotion, and pacing indistinguishable from professional voice actors for most applications.

What languages and accents?

15+ languages, 39+ voice options with accent, age, and gender variations. Custom voice cloning available for brand consistency.

Related studios you might like

How BeforeTomorrow works →Compare AI tools →Pricing →

Last updated: June 2026