What is the best way to precisely sync original audio to various video for music video?
Premiere Elements doesn't offer multi-camera editing, like Premiere Pro does. So you'll need to do it manually.
Place one camera angle in its entirety on Video 1 and, if you have a separate master audio recording place it on one of your audio tracks. Position the video on Video 1 so that it's in perfect sync with your audio track. If you're using a separate recording for your audio, right-click on your video and select Delete Audio so you only have one audio track.
Please your second camera angle on Video 2 and position it to sync with your other audio. Right-click on it and select Delete Audio. When you play your movie, you will only see the video on Video 2.
When you'd like to switch camera angles, split the video on Video 2 and remove segments. (It should stay in position.) In the segments where you've removed video from Video 2, you'll see the video on Video 1.
It's not easy, but there's really no other way to do it.
One tip, that might keep you editing smoothly is to turn OFF Snap, when you are critically aligning your Camera 2 with the Audio from Camera 1. Snap is toggled with the S key. While it is very useful, and is ON by default, when one is doing Frame-accurate editing, it can really get in the way, as any Clip being adjusted will try to, well snap, to any Clip borders in the Timeline.
Good luck,
Hunt
Snap is the capability to make it easier to "snap" one Clip to the Head or Tail of another. It is very useful, when working with full Clips in the Timeline. It is ON by default. However, when working with moving Clips small increments, and especially if there are many other Clips on the Timeline, it can be bothersome, and that is when I turn it OFF. The S key toggels it ON/OFF.
As an example, say that I have many SFX Clips in my Audio Tracks, and want to "nudge" a Video Clip to an exact point, if Snap is ON, that Clip will "hang" on the Head, or Tail of the Audio Clips. With Snap OFF, I can freely nudge that Clip, exactly as I want. For general editing, I like it ON, but for critical alignment, I want it OFF.
Good luck, and hope that helps,
Hunt
Here is a little more on Snap:
Align clips by using the Snap option
The Snap option, which is enabled by default, makes it easier to align clips with each other or with particular points in time. When you move a clip with the Snap option selected, it automatically aligns with, or snaps to, the edge of another clip, a marker, the start and end of the time ruler, or the current‑time indicator. Snapping also helps to ensure that you don’t inadvertently perform an insert or overlay edit when dragging. As you drag clips, a pop‑up window displays the distance, in frames, that you have moved them (a negative number indicates you’ve moved them toward the beginning of the movie).
Choose Timeline > Snap. A check mark indicates that the option is enabled.
One of the limitations of PrE vs it's much bigger-brother, PrPro, is that the Timeline can ONLY be set to SMPT TimeCode, i.e. hours;minutes;seconds;frames. Also, in Video, the Frame is the lowest unit of measurement on the Video Timeline - there are no partial Frames, so one is dealing with 1/24th, 1/25th or 1/30th of a second. As PrE only offers SMPT TimeCode, the Audio can also only be adjusted to the 1 Frame level, but that is usually adequate for most human ear/eye viewing. A critical musical listener might be able to pick up a very slight OOS (Out Of Sync), but only with critical listening and viewing.
PrPro allows one to change the TimeCode to Audio Units, so that the Audio (just the Audio), can be adjusted to the recprical of the Audio Sample-Rate, say 1/48,000th of a second.
Also, though they use pretty standardized controller clocks, there is often a very slight difference between a camera and a remote digital Audio recorder. Some users have tested their equipment, and determined the difference between the two pieces of equipment, and then just alter the Duration of the Audio from their recorders, with Maintain Pitch checked. One user determined that his Zoom recorder needed to be adjusted by 100.4%, to match perfectly with his Panasonic cameras. This slight difference is constant, so just making that speed adjustment on his Audio makes it always perfect.
Just some things to think about.
Good luck,
Hunt
In PrE, there is not change in TimeCode. It will always be SMPT, or hours;minutes;seconds;frames, and displayed as 00;00;00;00 (or separated by a colon, if you are in PAL-land). The Frame-level is as low as you can go.
Nothing to worry about, but just something that I wanted to point out.
Good luck,
Hunt
North America
Europe, Middle East and Africa
Asia Pacific