#Hi! Is there a way to control or set the duration of the generated speech in ElevenLabs?I’d like t

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golden violetBOT
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AI-generated Answer for adrien_blanchard

Short answer: No—Text to Speech does not provide a “target duration” or “fixed length” setting. You can only influence duration via speaking speed and explicit pauses. (elevenlabs.io)

What you can do

  • Adjust speaking speed:
    • Web: Use the Speed slider in Text to Speech and Studio (range 0.7–1.2; 1.0 is normal). (elevenlabs.io)
    • API: Set the speed value in the voice settings (GET/POST endpoints show the speed field). (elevenlabs.io)
    • Docs also describe speed control and its limits. (elevenlabs.io)
  • Insert precise pauses:
    • Use SSML-style <break time="Ns" /> in your input (up to 3 seconds per break). Works in the Speech Synthesis page and via API. (help.elevenlabs.io)
  • Calibrate text length:
    • Model guides list approximate durations per character cap (e.g., Flash v2.5: 40k chars ≈ 40 minutes). Use these as a rough guide when trimming or expanding text. (elevenlabs.io)

Important clarifications

  • Duration locking exists for Sound Effects (you can set a clip length there), but not for Text to Speech. (help.elevenlabs.io)

If you need every output to be ~10s regardless of input text, you’ll have to adjust the text (and/or add breaks) and set speed accordingly; there’s no built-in auto-normalization to a fixed duration in ElevenLabs TTS today. (elevenlabs.io)

Sources:
Text to Speech | ElevenLabs Documentation
Text to Speech (product guide) | ElevenLabs Documentation
Get voice settings | ElevenLabs Documentation
Speed control | ElevenLabs Documentation
Do pauses and SSML phoneme tags work with the API? – ElevenLabs
Models | ElevenLabs Documentation
What is Sound Effects? – ElevenLabs
Text to Speech | ElevenLabs Documentation

patent lagoon
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Hi! Is there a way to normalize or stabilize a voice so it sounds consistent regardless of the input text?
I’m generating speech automatically for real videos, and I’d like to avoid expressive or exaggerated variations in tone.
Ideally, I want the voice to keep a steady, natural delivery that fits well into mixed audiovisual content.
I’m using ElevenLabs both via the website and the API.

golden violetBOT
#
AI-generated Answer for adrien_blanchard

Short answer: Yes—you can make delivery steadier by tuning Voice Settings and (optionally) using a seed. There isn’t a single “normalize” switch, but the following settings and endpoints are designed for exactly this.

On the website (Playground/Studio)

  • Increase Stability to reduce randomness between generations; higher values sound more monotone/neutral. Set Style (style exaggeration) to 0 to avoid expressive delivery. Raise Clarity + Similarity Enhancement (similarity_boost) and keep Speaker Boost on for closer adherence to the base voice. (elevenlabs.io)
  • Keep input text neutral—punctuation and emotive cues (e.g., “excitedly”, “!!!”) drive expression. (elevenlabs.io)
  • In Studio, use Override settings if you need different stability per paragraph; otherwise change the voice’s settings once for the whole project. (elevenlabs.io)

Via the API

  • Persist stable settings on a voice:
    • POST /v1/voices/:voice_id/settings/edit with, for example: stability=1.0, style=0, similarity_boost=1.0, use_speaker_boost=true (optionally speed=1). (elevenlabs.io)
  • Or override per request:
    • POST /v1/text-to-speech/... with a voice_settings object in the body (same fields as above). Use seed to increase reproducibility; repeated requests with the same parameters and seed should return the same result (not guaranteed). (elevenlabs.io)
  • When splitting long scripts, pass previous_text/next_text or previous_request_ids to keep continuity across segments. (elevenlabs.io)

Model and voice choices

  • If you’re on Eleven v3, set Stability toward “Robust” for the most consistent delivery (less responsive to directional prompts, more stable). (elevenlabs.io)
  • Consider using Default voices—they’re curated for reliability and consistency across updates. (elevenlabs.io)

Important limitations

  • Outputs are nondeterministic by design; the seed parameter can help, but exact repeats aren’t guaranteed. (elevenlabs.io)

If you want, share your current model/voice and I can suggest concrete slider values and an example API payload tailored to your setup.

Sources:
Text to Speech (product guide) | ElevenLabs Documentation
Text to Speech | ElevenLabs Documentation
Studio overview | ElevenLabs Documentation
Edit voice settings | ElevenLabs Documentation
Create speech | ElevenLabs Documentation
Create speech | ElevenLabs Documentation
Prompting Eleven v3 (alpha) | ElevenLabs Documentation
Voices | ElevenLabs Documentation
Text to Speech (product guide) | ElevenLabs Documentation

patent lagoon
#

Is there a way to get information about the length or duration of the generated audio via the API?
I’d like to create a filter so that if the generated clip is shorter than 10 seconds, I can automatically reduce the playback speed.