How good is the automatic transcription?
This depends on the recording setting and the pronunciation of the speakers. For a “perfect” setting (e.g., a scripted TV interview), we can achieve as high as 95%- 97% accuracy, whereas settings such as a spontaneous meeting, rapid speakers, accents, or noisy backgrounds like a busy café may result in 40%- 50% mistranscriptions or gaps.
How can I improve the transcription quality?
In general, the better the audio recording, the better the automatic transcript. A slow native speaker in a professional audio studio will be transcribed almost perfectly, whereas a meeting in a large restaurant that was recorded on an old smartphone will have many errors. If you can influence the recording, we highly recommend a good microphone and a quiet setting with as little background noise as possible.
How long does it take until my transcription result is ready?
One hour of audio usually takes 40-90 minutes. You will receive an email once it is ready. In comparison, a manual transcriber would take 4-6 hours.
Where is my data processed?
Your data is generally stored and processed on our local infrastructure in Switzerland (Informaniak cloud).
Can I install Stenoris on my server?
Yes. We can install and run Stenoris on your local infrastructure. Please get in touch with us at [email protected]
What happens if several speakers talk at the same time?
Parallel speech is complex to recognize for humans and even more challenging for machines. At the moment, we do not have a solution that produces reliable output for parallel speech. For this reason, we are working on an extension of our editor that significantly simplifies manually transcribing parallel speech.
My audio file format is not supported. What can I do?
We support more than 25 audio and video formats, so this is unlikely. However, if your recording is in an unsupported file format, we recommend converting it into Wave format (the typical ending is .wav). You can also email us.
There are free online services for this task, e.g.
If you prefer to use a tool on your computer (e.g., your audio contains sensitive data), you can use:
My language is not supported. What can I do?
We can easily add a new language to Stenoris. Just drop us an email.
Did you not find the answer to your question? Please don’t be shy and contact us directly.