Sat May 11, 2024 12:13 am
Hi Jack,
Conferences and Seminars are our bread and butter and here are some options for you. You will however need to be able to add and subtract times at the frame level.
Make sure you have the time on your camera and audio recorder as close as possible to identical. You won't get them exactly the same without jam syncing, but even to the nearest minute will make your life a lot easier in post when you are editing.
1. The clap will work whether it is a clapper board or just your hands. When editing you line up the spike in the audio with the visual of the clap. Whatever you are doing to record the audio and video for the conference is what you do here. Tip: make sure the camera can clearly see the clap.
2. You can also set the same reference point prior to starting the actual event but after you are setup. You can have the camera and mic anywhere suitable. Note the approximate time as on the camera and audio recorder when you do this to make it easier in post.
3. When you start editing, put both the video and audio on the timeline WITH the same start point. Find the video frame where the clap is and note the time code. Do the same with the spike on the audio track. Calculate the difference between them - this is the offset you need to apply for all clips.
4. Align the clips by:
a. Select the clip where the reference point is earliest.
b. Click on the timecode at the top right of the Program window
c. Type "+" followed by the offset and return. This will move the clip and if the maths is correct then the audio will line up. For example, if the offset is 2 sec 5 frames, type "+2.05".
5. Repeat as required for additional clips with one modification. Add the offset to the start timecode of the clip and enter that as the timecode in the Program window, but WITHOUT the "+". This will move the clip to that actual timecode position.
If your DSLR starts every clip at timecode 0 then you will have a lot more work cut out for you to get the starting point for the clips. If you are recording audio with a Zoom, maybe create a marker on that at the same time as you start the video record.
On another note, I am more than a little bit cautious about stop/start recordings for a conference. How do you plan to handle the gaps in the recording? Have you also considered using your phone as a 2nd camera and making it a wide shot, particularly to cover the gap when you have to restart the DSLR.
Darryl
Darryl Severn
The Videoverse by Darbeth
Livestreaming, Conferences, Info & Education, Events
Kit:
BMPCC 4K, Studio Cam 4K Pro, ATEM Mini Extreme ISO, Resolve Studio
DJI Inspire 2, Panasonic HCPV100,
Behringer XR16, Sennheiser XSW