First of all, these scripts helped me to record my first video.
Here is my [youtube channel][beautemusculation] to see the result.

# Scripts to record videos

Both `record-audio.sh` and `record-video.sh` do exactly what their name is saying.
These are simple ffmpeg calls.
Their unique parameter is the output filename.

Since I use them on OpenBSD the audio driver is sndio and not Alsa or OSS or PulseAudio or whatever.

# Recording the camera

I don't record my face from my camera in a separate video stream.
I just display my camera feed in a window thanks to `camera.sh` and my whole screen is recorded with `record-video.sh.`.

There are two optional parameters: brightness and saturation.

Don't hesitate to tweak a bit this script: there are a few hardcoded ffmpeg parameters, such as a very low quality video size.

# Synchronize audio and video

The script `sync.sh` is to include in your environment.
It adds a few shell functions, using ffmpeg and mpv to help mixing and synchronizing audio and video.

- stereo2mono: my first error was to record a mono input in stereo, so I had audio only on the left side.
  This fixes the issue by removing the superflous empty track.
  Side note: since then, `record-audio.sh` was corrected (see `-ac 1` option).
- please_read: I'm like super lazy.
  This launches mpv with both video and audio without having to specify both files and the mpv option.
  Just read the source, the function is obvious.
- avsync: this is the core function to synchronize audio and video.
  Usage: `avsync video audio delay output`.
- avs: did I mention I'm lazy?
  This function is just me not wanting to type all `4` parameters for avsync.
  Again, read the source code, it's obvious.

# Forget about record-audio-and-video.sh

This script _probably_ does work if your computer is powerful enough.
That's not the case for mine.

# Software

I used `ffmpeg` a lot in these scripts.
That's one of the most versatile program you can find, anywhere.

I recommand `kdenlive` for both video editing (transitions, effects, inserts...) and for a few audio editing too.
It does help removing audio artifacts.
Learn how to use `keyframes` and you'll be ready for crazy productivity in no time.

I also use `audacity` to remove background noise, which allows to increase the volume smoothly.

Finally, for creating a thumbnail for my videos, I use `krita`.

Don't forget to have fun!

[beautemusculation]: https://www.youtube.com/channel/UC7nYol-RiCxMV7Tzg_jOV4w/featured