Why is Blender muting the first split second of sound in the rendered video file? 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?
Try moving the audio clip in blender so that it starts at frame 1.

To do this, select your audio clip and press g.