Most likely your zoomed up view is frames, not seconds, and in PD12 they added 1/10 of frames, 10 tick marks between frames, maybe this is your reference. (hrs;min;sec;frames) is the timecode. These partial frames, (10 ticks) can be used to move audio only. Somewhere in the PD12 propaganda was a feature for better audio alignment, maybe it's this. So if ~30 fps timeline and now and 10 ticks between, audio alignment of ~.003 seconds vs video alignment of 1/30, ~.03 seconds.
It does add some issues, for instance, in clip mode if audio is selected, the "Home" key does not go the to beginning of the real clip if you have moved it a fraction frame, it goes to the nearest frame. Same effect for the "End" key. Likewise you can not use the frame advance to go to the beginning of the audio clip a frame at a time as it's not positioned at a frame.
If this fractional frame change in audio is adequately positioned in a rendered product, I'm not sure, I have not verified with any clapper tests. Maybe it just messes up the audio/video synch.
Maybe these pics will help understanding with the Nature clip and audio extracted from Nature clip.
Jeff
|
Filename |
audio movement.png |
|
Description |
1/10 frame audio movement |
Filesize |
864 Kbytes
|
Downloaded: |
119 time(s) |
|
Filename |
audio home.png |
|
Description |
"Home" key clip mode audio |
Filesize |
852 Kbytes
|
Downloaded: |
84 time(s) |
|
Filename |
video movement.png |
|
Description |
1 frame video movement |
Filesize |
890 Kbytes
|
Downloaded: |
110 time(s) |