AI Voice Cloner
Clone any voice from a short audio clip. Upload 3-10 seconds of speech, type your text, and generate audio in the same voice.
Clone: provide a 3–10s reference clip. Preset: pick from bundled multilingual voices.
Upload voice reference audio
MP3, WAV, M4A, FLAC
VibeVoice presets cover English, German, French, Japanese, Korean, Polish, Portuguese, Spanish, Italian, Dutch.
Max 500 characters
0/500
Uses 1 credit per generation
How It Works
1
Upload Reference
Provide 3-10 seconds of clear speech from the voice you want to clone.
2
AI Analyzes Voice
F5-TTS extracts voice characteristics: tone, pitch, speaking style, accent.
3
Generate Speech
Your text is spoken in the cloned voice. Download the result as WAV.
Voice cloning is for personal and authorized use only. Do not clone voices without the speaker's consent.
Frequently Asked Questions
voice cloning runs in your browser: paste a URL, upload a file, or record from your mic. STT.ai picks the AI model and returns the transcript in under 5 minutes. Export as TXT, SRT, VTT, DOCX, JSON, or PDF.
Yes — every visitor gets 600 free minutes/month on STT.ai, usable for voice cloning the same as any other workflow. Paid plans starting at $5/month unlock longer files, private transcripts, and priority queueing.
voice cloning runs on the same AI models as the rest of STT.ai — our best models reach 95-97% accuracy on clean speech (3-5% Word Error Rate on benchmarks). Switch models on the fly if the first pass is below your target.
voice cloning can run on any of STT.ai's 10+ models — STT.ai Enhanced (most accurate), Whisper Large V3 (99 languages), NVIDIA Canary (#1 WER on supported langs), Whisper Turbo (fast), Moonshine (lightweight), and more.
Yes. Every transcript exports as SRT or VTT — works with YouTube, Vimeo, TikTok, VLC, and every major video player. The burn-subtitles tool overlays them onto video as hardsubs.
Yes. Speaker diarization automatically labels each voice (Speaker 1, Speaker 2, ...) and you can rename them in the built-in editor. Works across all models and languages.
Most voice cloning jobs finish in under 5 minutes. A 1-hour audio file typically completes in 2-3 minutes with our fastest models. Speed depends on chosen model and current GPU load.
voice cloning accepts 20+ formats — MP3, WAV, M4A, FLAC, OGG, MP4, MKV, MOV, WebM, AVI, and more. Output to TXT, SRT, VTT, DOCX, JSON, or PDF.
Yes. Audio files submitted to voice cloning are processed and deleted by default. Pro plans add client-side encryption — even if STT.ai's database is breached, your transcripts are unreadable without your key. Data is never used for model training without explicit opt-in.
Yes. STT.ai offers a REST API with Python and Node.js SDKs, plus an MCP server for Claude and Cursor — all usable for voice cloning workflows. Free API tier includes 100 minutes/month.
Yes. Every transcript opens in the built-in editor where you can correct words, rename speakers, adjust timestamps, and add notes. All changes save automatically.
Every transcript gets a unique shareable URL. Export to DOCX or PDF for email. Pro plans add password-protected and permanent links — useful for client work.
STT.ai handles 1,300+ platforms including YouTube, Vimeo, TikTok, SoundCloud, Zoom, Google Meet, podcast hosts, and more. URL transcription works with publicly-available content only — DRM-protected sources can't be transcribed.