<p>Simple answer is yes - the Video frame is repeatedly encoded multiple times. There is compression - including frame-to-frame, but the single image frame is effectively duplicated numerous times. Try reducing the resolution for lower file size - if the quality of that image is not so important.</p>

CC BY-SA 4.0
2020-04-17T21:49:24.500Z
2020-04-17T21:49:24.500Z
SimplSam
<p>My music file is about ~300 MB and ~4 hours long. I'd like to add a background image onto it to upload it on Youtube. The problem is, when I try a video rendering program (Kdenlive, Windows Movie Maker etc.) to do that, the output becomes massively big, like ~40 GB. I don't understand, why does merging procession of a 300 MB mp3 file and a 1 MB png file result such a huge file size like that? Does the rendering program render the background image again and again for every frame? Can't the whole video have just a single frame and an audio attached on it?</p>

<p>Is there another way to accomplish it?</p>

<youtube><rendering>
How can I add a background image to a large music file?
Atreidex
# How can I add a background image to a large music file?

(Asked by: username_0 on 2020-04-17)

My music file is about ~300 MB and ~4 hours long. I'd like to add a background image onto it to upload it on Youtube. The problem is, when I try a video rendering program (Kdenlive, Windows Movie Maker etc.) to do that, the output becomes massively big, like ~40 GB. I don't understand, why does merging procession of a 300 MB mp3 file and a 1 MB png file result such a huge file size like that? Does the rendering program render the background image again and again for every frame? Can't the whole video have just a single frame and an audio attached on it?

Is there another way to accomplish it?

**Tags:** youtube, rendering


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## 1 answers

### Answer by username_1 on 2020-04-17. Score: 0 | Accepted answer

Simple answer is yes - the Video frame is repeatedly encoded multiple times. There is compression - including frame-to-frame, but the single image frame is effectively duplicated numerous times. Try reducing the resolution for lower file size - if the quality of that image is not so important.


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