To replicate:
- Render a video sequence with an audio strip at the beginning.
Extract the audio from the video file using ffmpeg:
ffmpeg -i blenderoutput.mp4 audio.wav
Load the audio file in Audacity and look at the first instant in the waveform
This is not a bug in ffmpeg, I tried it with other videos that have audio throughout, it did not silence the first split second.
Is this a bug in Blender or is there some flag/feature I have to toggle?