How to make strings "wobble" on video?

[lacatedral]

Greetings, many of you might know Acoustic Trench channel and videos:




The phenom which occurs with the strings wobbling is called rolling shutter effect. Many phones, like any iPhone from 4th gen onwards, are capable of doing so. I have an Iphone 5s and tried doing this and it actually works, you need to record outside on a sunny day with a specific angle.

But now the question is, how does he make his string wobble in an interior place? He's not ouside playing in the garden, it looks like he was recording in a quiet dark room. Of course there's some light pointing at him and that could be it, but still he would require a VERY bright torch or something like that.


Thanks, and then again sorry for any grammar mistake I'm not an English native.

[rick-slo]

[srick]

(Here's the link: https://www.youtube.com/watch?v=TUFQ9Gah658 I can't embed the video also tried only putting down the last code after "watch?v=" but still no luck)

Somehow, an extra Youtube command got inserted. The correct coding should look like this (YOUTUBE)TUFQ9Gah658(/YOUTUBE) - replace the parenthesis with brackets of course.

best,

Rick

[ljguitar]

Originally Posted by lacatedral

Greetings, many of you might know Acoustic Trench channel and videos:

The phenom which occurs with the strings wobbling is called rolling shutter effect. Many phones, like any iPhone from 4th gen onwards, are capable of doing so. I have an Iphone 5s and tried doing this and it actually works, you need to record outside on a sunny day with a specific angle.

But now the question is, how does he make his string wobble in an interior place? He's not ouside playing in the garden, it looks like he was recording in a quiet dark room. Of course there's some light pointing at him and that could be it, but still he would require a VERY bright torch or something like that.


Thanks, and then again sorry for any grammar mistake I'm not an English native.

Hi lacatedral

Also, if you try different shutter speeds (24 or 25fps, 30fps, 50fps, 60fps, 90 fps etc) you can also get different effects (Phones from USA and Europe have different standards for shutter speeds). My iPhone 8plus goes up to 240fps in slo-mo but only 60fps at 1080p with the built in app. But I can get 240fps at 1080p with a pro app.

iPhones can shift shutter speed and resolution.
Settings-->Camera-->Record Video-->Choose frame rate and resolution
Settings-->Camera-->Record Slo-mo-->Choose Frame rate and resolution

The room was dark, but he was using video lights of some sort, and those too can have an effect (especially the LED light panels) on motion in video.

Pro apps like Filmic Pro will give you even more choices over shutter speed and resolution than the built in camera app. It is a paid app, and for people who like to set everything up themselves on their phones.

Hope this helps…

[jim1960]

You might seek out some film production forums and see if anyone there can tell you how it was achieved. It's a pretty cool effect.

[Cocobolo Kid]

Cool video and song.

Also, nylon string guitars have much less string tension than steel string acoustics, and will thus have a lot more apparent string movement/vibration.

[guitar george]

More wobbly strings. He really gets going around 2:12.

[Vindellama]

The wobble effect happens when you use an ultra high shutter speed.
The standard is to film with the shutter speed at double the value of the frames per second.
1/50 for 24fps, 1/60 for 30fps, 1/120 for 60fps.
The wobble happens when you start to get to 1/500ss for 24/30fps, and up.

The problem is that the faster the shutter speed ("higher" the value), the less light get to the camera sensor.
So in order to do this indoors you are going to need 3 thing (not necessarily at the same time, but reccomended):
1-A really strong studio light source;
2-A wide aperture "fast" lens (to let more light get into the sensor);
3-A full frame camera (bigger sensor, hence able to pick up light easier);