Transcription IA
Convertissez vos fichiers audio et vidéo en texte avec OpenAI Whisper — le modèle de transcription le plus précis, 100% local.
Déposez votre fichier audio/vidéo
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MP3, MP4, WAV, OGG, M4A, MKV — max 200 MB
Whisper transcrit votre fichier (1–5 min selon la durée)
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Free AI Audio & Video Transcription Online — Speech to Text
Transcribe audio and video to text using OpenAI Whisper AI. Supports MP3, MP4, WAV, OGG, M4A and more. 50+ languages. Accurate, private, no account required.
Powered by OpenAI Whisper: what makes it accurate
Whisper is OpenAI's open-source automatic speech recognition (ASR) model, trained on 680,000 hours of diverse audio. Its key advantages over older ASR systems: robustness to accents (trained on voices from 50+ countries); noise tolerance (handles background noise, music and overlapping speech better than alternatives); automatic language detection (identifies the spoken language without manual specification); punctuation insertion (outputs readable text with proper sentence structure, not just a stream of words).
Best practices for highest accuracy
Transcription accuracy depends on audio quality. For best results: use audio recorded in a quiet environment with minimal background noise; ensure clear, close-to-microphone speech; avoid heavy music overlapping with speech; for interviews, use a microphone closer to each speaker. Audio quality above 44.1 kHz sample rate and 128 kbps bitrate produces the most accurate results. Poor quality audio (heavy reverb, low bitrate, multiple overlapping voices) may still produce useful output but with more errors.
Use cases: who needs transcription
Content creators and podcasters: generate show notes, blog posts and captions from episodes automatically. Journalists: transcribe interviews for article sourcing. Students and academics: transcribe lectures, seminars and research interviews for analysis. Business professionals: transcribe meeting recordings, webinars and client calls for documentation. Legal and medical professionals: transcribe dictated notes (always verify accuracy for critical applications). Subtitling: generate subtitle text for video content.
FAQ
Which audio and video formats are supported?
MP3, MP4, WAV, OGG, M4A, FLAC, WEBM and most common audio/video formats. The tool automatically extracts audio from video files.
Which languages can it transcribe?
50+ languages including English, French, Spanish, German, Italian, Portuguese, Arabic, Japanese, Chinese, Korean, Russian, Hindi and more.
What is the maximum file size for transcription?
Audio files up to 200 MB and video files up to 500 MB are supported.
How accurate is the transcription?
For clear speech in good audio conditions, Whisper achieves 90-95%+ accuracy for major languages. Accuracy decreases with heavy accents, fast speech, technical jargon and poor audio quality.
Is the transcription stored on FileSwiftly servers?
Your file and the transcription output are automatically deleted after 1 hour. Nothing is permanently stored.
Can I transcribe a YouTube video?
Download the video first (using an appropriate tool), then upload the file for transcription. Direct YouTube URL transcription is not supported.