Why do researchers export MOV interviews to WAV for ASR?
Automatic speech recognition vendors love predictable PCM: fixed sample rates, stable headers, and batch-friendly slicing. MOV interview masters still arrive from iPhone lavs, dual-system recorders, and Zoom backups with AAC inside. Searchers type mov to wav transcription, mov dialogue wav 48khz, asr preprocessing wav, and court reporter audio format because the failure mode is mis-picked language tracks and VFR drift, not MOV superstition. WAV cannot remove room reverb or HVAC rumble; it only gives your cleaning tools a consistent numeric domain. Sensitive spoken PII remains sensitive even when pixels disappear, and export to personal drives still needs policy review. Ai2Done keeps the voice variant procedural: audition every track, export a one-minute ASR probe, align timestamps, then run the full interview with ticketed hashes.
How to prep MOV dialogue for transcription-grade WAV
- Open MOV to WAV, select the voice variant, switch tracks in a player to confirm which bed is primary speech versus translation or room tone.
- Export 48 kHz WAV when your ASR contract demands it, after stabilising frame rate in the edit timeline if the MOV came from a VFR screen capture.
- Run a short transcription test, fix track selection if the transcript language drifts, then publish checksum-linked WAV and MOV pairs for compliance archives.