The media is DNxHD 220 MXF. It’s 1080p 29.97. The QT settings are: export as QT ref. Use mark, enabled tracks. Flatten video tracks, fill spaces with black, render av video effects, mixdown audio tracks (there is only one on this project), audio format: WAVE, 48 kHz, 16 bit. Use Avid Codecs, RGB color levels. I’ve recently made many QuickTime reference movies successfully from footage from the same source with all of these same settings, and all of a sudden it’s stopped working = no audio.
Thanks,
Victor