Audio sounds robotic or flat
The stability slider is too high. Lower it to 30-50% for more natural inflection, or switch to a voice known for expressiveness like 'Rachel' or 'Antoni'.
Fix: Adjust stability to 35% and similarity to 75% for a good balance.
Generation fails or times out
Long texts (over 2,500 characters) can exceed time limits. Shorten your script into smaller chunks of 1,000-1,500 characters each.
Fix: Break your script into paragraphs and generate them separately, then stitch the audio files together.
Pronunciation of names or acronyms is wrong
ElevenLabs AI reads text literally. Use phonetic spelling or punctuation to guide it — for example, write 'NASA' as 'N-A-S-A' or 'Elon Musk' as 'Ee-lon Musk'.
Fix: Add pronunciation cues in square brackets or use the custom pronunciation tool in the dashboard.
Voice cloning doesn't work well
Your source audio needs at least 1 minute of clean, consistent speech. Background noise, multiple speakers, or music confuse the model.
Fix: Record a quiet, single-speaker sample, or use the voice design feature to tweak parameters manually.