How to "glue" an image and an mp3 file in VirtualDub to make a video for YouTube?

Question

YouTube

Acted according to this instruction.
The result is a video file, but VLC shows a black screen when playing,
and YouTube says that the format is bad.
The size of the mp3 file is large, about 550 MB - audiobook. Although this is hardly the case.
What am I doing wrong?
VirtualDub attracts with its colossal speed of work.
It cannot be compared with Sony Vegas, Adobe Premiere, Pinnacle Studio, etc.
If there are other suggestions on how to transform an audio file into a file suitable for uploading to YouTube, while minimizing its size and maintaining the speed of VirtualDub , I will be glad to hear.
Thanks everyone for the clear answers!

Answer 1

We made a similar service based on ffmpeg.

Answer 2

VirtualDub wants the video to be the same length as the audio. And you have one picture.
AviSynth can be used to solve this problem. It is a scripting language for video editing. You can get the installer from avisynth.nl.
You need to create a file with the .avs extension and approximately the following content.

ImageSource("image.jpg", 0, 0) # здесь путь до вашей картинки
AssumeFPS(25) # установим частоту кадров будущего видео в 25
Loop(N) # тут нужно указать, сколько раз нужно повторить картинку, 
        # чтобы получилось видео нужной длины 
        # (продолжительность аудио в секундах × частота кадров = 25)

AviSynth-scripts VirtualDub opens as a normal video. Don't forget to set up video compression (there are a lot of manuals on the net), otherwise you will get a very large file.

Answer 3

In VirtualDub, you need to copy a frame with an image, and copy many times, since 1 image = 1 frame (and this image is visible ~ 1/24 of a second).
There is this filter , it will help.
And there is such a service , especially for your purposes.