ASF to Text

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Independent benchmark

Independently benchmarked against Microsoft, Google and Whisper

Researchers at the University of Bucharest scored seven transcription systems on over 126 hours of Romanian speech. Vatis finished top two of the seven overall — first on Antena 1 news and first on podcasts, and more accurate than Google on every single set.

  • ~95%

    Accurate on Antena 1 news

    95.6% on the Antena 1 news set — the highest of all seven systems tested, ahead of Microsoft, Google and every Whisper model.

  • ~90%

    Accurate on podcasts

    89.8% on podcasts — first again on unscripted conversation, and more than 12 points clearer than Google on the same audio.

  • 6 of 6

    Domains ahead of Google

    Vatis transcribed more accurately than Google's Chirp on every set in the study, from studio news to overlapping film dialogue.

Zero-shot Word Error Rate as a percentage on the in-domain and out-of-distribution test sets. Lower is better.
ModelIn-domainOut-of-distribution
ProTV — Broadcast newsAntena 1 — Broadcast newsAudiobooks — Read literary proseFilms — Overlapping film dialogueStories — Children's storiesPodcasts — Spontaneous conversation
Wav2Vec 2.027.725.640.875.454.136.3
Whisper Small31.626.840.060.041.131.9
Whisper Large12.35.914.827.3 — best in column10.9 — best in column11.7
Whisper Small + Echo9.410.118.854.121.021.6
Microsoft Transcribe2.9 — best in column4.810.6 — best in column31.117.611.5
Google Chirp (USM)12.111.320.237.622.422.4
Vatis5.24.4 — best in column13.031.216.010.2 — best in column

Figures are Word Error Rate (%) — the share of words a system gets wrong, so lower is better. It is the metric the paper reports, kept here so the table can be checked against it line for line; the headline numbers above are its flip side, accuracy. Vatis at 4.4 WER on Antena 1 is 95.6% of words correct. Every score is zero-shot: no system was tuned on these recordings before it was measured.

Outlined values are the best score in their column.

Vatis is a Romanian commercial ASR service known for its strong transcription accuracy in Romanian. Its models are trained on proprietary data and optimized for production use.
Diaconu, Vînaga & Alexe · University of Bucharest · arXiv:2603.02368
Try free — 10 minutesRead the benchmark (opens in a new tab)

Languages and formats

Transcribe audio to text in these languages and formats

Supported Languages

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Formats to transcribe video to text

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How it works

How to convert ASF to text

An hour of recording becomes a transcript in two to three minutes.
  • 01The Vatis Tech transcript library, listing uploaded audio and video files with their length, language and status

    Upload your audio/video file

    Drop a file, paste a link, or record live from your browser. We accept formats like MP3, WAV, M4A, FLAC, AAC, OGG for audio and MP4, MKV, AVI, MOV, WebM for video.

  • 02A finished transcript in the Vatis Tech editor, split into timestamped speaker turns beside the source video

    AI transcribes in seconds

    Our audio to text converter handles 50+ languages with 95%+ accuracy. It usually takes less than a minute to transcribe a 1-hour file.

  • 03The Vatis Tech assistant answering a question about a transcript, above the download, summarise and translate actions

    Edit, export, integrate

    Get clean text in TXT, DOCX, SRT, VTT, JSON. Or call our API directly.

Frequently asked questions

Can't find the answer you're looking for? Reach out to our support team.

How does ASF to text work?

Vatis Tech uses advanced AI and video to text converter technology to transcribe ASF video files into editable text quickly and accurately. Upload your ASF and let our tool do the rest. Use it to convert ASF to text online, create subtitles, or summarize key takeaways with AI — in seconds.

What video formats are supported?

We support all major video formats: MP4, MKV, AVI, MOV, WebM, WMV, FLV, and MPEG. Video files can be up to 5GB and 10 hours long.

How accurate is Vatis Tech's transcription?

We achieve around 95% accuracy, similar to a human transcription service. Improve your transcripts even further by editing for perfect results within our platform.

How fast is the ASF transcription process?

Expect high-quality ASF transcription in minutes, not hours. We convert 1 hour of high-quality audio in about 1 minute. Built to be the best ASF to text converter for teams, fast, accurate, and secure.

Is there a free trial for your transcription service?

Yes! Get started with 10 minutes of free transcription to try our accurate and user-friendly software. Take advantage of our automatic transcription technology by starting your free trial today.

Can I identify different speakers in my ASF file?

Absolutely! Vatis Tech's speaker identification feature automatically labels different speakers, so you'll always know who said what.

How do I search and edit within my transcripts?

Our speech recognition software makes it easy to search for keywords and edit your text directly. This helps you find, review, and refine important information quickly.

Does Vatis Tech provide timestamps for my transcript?

Yes, we include timestamps with your transcript. This helps you pinpoint specific moments in the original audio or video file.

Can I get subtitles from my file?

Yes. Transcribe the ASF video, then export the transcript as SRT or VTT subtitle file. Upload the subtitles to YouTube or any video platform that supports caption files.

How can I maximize the accuracy of my transcripts?

Follow these tips for top-notch results: Record with good quality equipment, speak clearly and minimize background noise, use a microphone suitable for speech recognition. If recording multiple speakers, keep them at a consistent distance from the microphone.

Do I need to convert ASF to MP4 first?

No. Our converter handles ASF files natively. Just upload the ASF file directly, no format conversion needed. Converting to MP4 would add an unnecessary step and could reduce quality.

Can I transcribe iPhone video recordings?

Yes. iPhone videos are saved as MOV files. Upload the MOV file from your Photos app, iCloud Drive, or AirDrop it to your computer. Our converter transcribes it with 95%-95%+ accuracy.

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