File transcription is useful when captions are missing or you own the recording. The extension is only the container: the audio quality and the speech inside it determine how usable the transcript will be.
Prepare the recording
Choose a supported audio or video file. Keep a copy of the original and avoid unnecessary re-encoding. If possible, reduce background noise and use a recording with clear speech rather than heavily compressed audio.
Respect the service boundary
Pyntic's upload route accepts files up to 4 MB and requires its media worker to be connected. Larger recordings should be split or handled by a separately configured upload workflow. Browser-local PDF tools do not share this upload path.
Review recognition risks
Check names, numbers, code, accents, speaker changes and quiet passages. Music lyrics and overlapping speech are particularly easy to mishear. The worker does not provide verified speaker diarization or certified verbatim transcription.
Export an appropriate result
Use TXT or DOCX for editing and SRT or VTT when you need timing. Listen to cue boundaries before publishing captions. Treat any automatic language detection as a starting point that you can validate against the recording.