I wanted to create some simple tutorial videos using a screen recording software (with gtk-recordMyDesktop to be precise), but the audio quality was terrible. There was a constant white noise in the background. I could reduce the noise with Audacity but 1) I couldn’t eliminate the noise, 2) it distorted my voice, and 3) the audio became weaker.
I had a cheap headphone / microphone that was connected with a jack plug. I think there was also some inference that caused the noise. So I bought a USB headset (Logitech H390) and the damn noise is gone! It works very well for me.
I tried it under Manjaro and here is how to make it work. Plug it and start Audacity. Next to the microphone icon there is a dropdown list. Select your headset and try to record some audio.
Try “pavucontrol” too. Under the Recording tab I had to select “Headset H390 Analog Mono”. Talk in the microphone and the sound feedback line should be moving.
How to record audio with gtk-recordMyDesktop? Start “pavucontrol” and “gtk-recordMyDesktop” too. In gtk-recordMyDesktop, go to Advanced -> Sound tab. Next to the device name I had “DEFAULT”. Change it to “pulse” (without quotes). Start recording with gtk-recordMyDesktop. Now switch to pavucontrol and go the Recording tab. At the bottom select “Show: Applications”. Now recordmydesktop should appear. Next to it there is a dropdown menu where select “Headset H390 Analog Mono”. It should do the trick.
The “Windows key + d” (aka “Super + d”) minimizes all windows, i.e. it shows you the desktop. It works under Windows, it works under Ubuntu, but for some mysterious reason, under Manjaro (XFCE), it’s “Ctrl + Alt + d” that I’ll never get used to.
How to use the well-known “Super + d” shortcut?
There must a keyboard shortcut editor for this, but I never find it. So I created a new shortcut that calls a command-line application that minimizes all windows. This way you get the same result. The command-line command for showing the desktop is “
wmctrl -k on“. You may have to install the package
Go to the Start menu, start typing “keyboard”, and open the Keyboard application. Go to the “Application Shortcuts” tab and add the “Super + d” shortcut to the command “
wmctrl -k on“.
On the YouTube channel of gotbletu I found a very nice trick (video). It explains how to replace the Caps Lock with the so-called Hyper key. And why? Because Caps Lock is pretty useless and you cannot use it for shortcuts. But if you tell the system that at the place of Caps Lock there is another key, namely the Hyper key, then you can use a new range of shortcuts.
You can find my
.Xmodmap file here. Just put it in your HOME folder and upon the next reboot it’ll be activated automatically. To activate it without a reboot, use the command “
Then, under Manjaro (XFCE), go to the Start menu, start typing “keyboard”, and open the Keyboard application. Go to the “Application Shortcuts” tab and add some new shortcuts. This time, when you press Caps Lock, it’ll be recognized as the Hyper key. I added these:
Hyper + g gedit Hyper + k konsole Hyper + f file browser (thunar)
Under Manjaro I had to create the
.Xmodmap file and it is read automatically at each boot. However, under Ubuntu it’s not the case. I tried several methods and here is what worked for me: add “
xmodmap ~/.Xmodmap” to the end of your
~/.bashrc file. Now, when you open a terminal, it’ll be activated for sure.
And if Hyper Hyper, then Scooter, of course:
Under Manjaro, Python 3.5 was updated to version 3.6. This is a big change, so check out the release notes, you might have to do some manual changes.
Under Manjaro I wanted to install new fonts. I needed a font pack; I didn’t want to bother with individual fonts.
At https://wiki.archlinux.org/index.php/fonts#TrueType I found some packages:
The Google font kit contains hundreds of fonts.
If you type a text in Gimp and you want to see the text with different fonts, i.e. you want to browse the fonts, here is how to do it.
Move the mouse above the font selector button (between “Font:” and “Sans” on the screenshot) and use the mouse wheel. That’s the trick.
After a reboot sound stopped working.
After a few hours of trying everything, the following solution worked for me:
- delete the folder
The Ubuntu default screenshot tool (
gnome-screenshot) is lame. In Manjaro there is a better tool called
xfce4-screenshooter, which allows you to select a region, open it with Gimp, upload to Imgur, etc.
How to assign
xfce4-screenshooter to the Print button?
First, install the software (
sudo apt install xfce4-screenshooter). Then, open System Settings, select Keyboard, and go to the Shortcuts tab. Here ignore the “Screenshots” entry and select Custom Shortcuts. Click on the “+” sign and add the command
xfce4-screenshooter. As a result, a new entry will appear. Click on its right side and assign the Print button to it. It’ll complain a bit but click on Re-assign. Done.
I found this nice solution here: http://askubuntu.com/a/609060/53599 . Click on this link for screenshots.