Commercials editing
Post-Production
The best length for a commercial or ad is an often debated topic. For a typical ad, most national broadcasting stations allow either a 15-second, 30-second, or 60-second slot. Choosing the right length is going to be difficult, as every product and company differs. Some companies go ahead and produce all three commercial lengths, using each ad in different markets. They may use a 60-second spot for national television, 30-seconds for local television, and a 15-second spot for web ads.
Shorter commercials have been increasing in popularity. Advertisers can spend less on 15-second time slot versus a 30-second slot. This allows them to run the ad more often and for longer periods of time.
DON’T cut video and audio at exactly the same time for every single shot. It is one of the tell-tale signs that a video has been edited by an amateur. Let’s say your ad involves two characters talking. You have one long take of an actor delivering all their lines and the reverse shot of the other actor delivering all theirs. You may think that the simplest way to edit this is to stay on the first actor as they say their whole line and then cut to the second actor as they say the entirety of theirs and so on. While I can’t say that cutting back and forth in this way is always wrong, doing it consistently not only shows a lack of creativity but also drains the sequence of naturalism. This is because it’s ignoring the subtle complexities, flow, and dynamics of an actual conversation, robbing the sequence of any resemblance to real life in favour of a stilted rhythm that is more like a verbal tennis match. Instead…
DO edit the video and audio separately. A good technique is to overlap the audio from one take to the previous shot so that the audio is heard before the source of it is seen on screen.
This is called an L-Cut (or J-Cut) and is one of the simplest yet most effective skills an editor can implement.
A good rule of thumb for understanding this is to ask yourself: how will this cut affect the audience emotionally at this moment?
Not necessarily that you have to make them feel sad at one cut, or happy at another, this rule has more to do with what the film feels like.
Is this transition or cut in line with the general emotional experience of the story? General emotional experience of the story is the vibe or tone you have set. If you want to maintain this tone throughout the story, the cuts and transitions should match that tone.
