Reading about Gerard Huet's paper on the geometry of the Shri Yantra available in PDF format at this link http://pauillac.inria.fr/~huet/SKT/sanskrit.html.orig, I was prompted to try out the Postscript code he had in and Appendix in the paper. After typing the code into a .txt file, the file did not render using Evince or a PDF … Continue reading How to convert PostScript script to a .ps file for viewing in PDF viewer or to PNG
Category: Multimedia
Installing Spotify on Linux Mint desktop
Spotify also has a desktop application that works on Linux Mint. To install it, open a terminal window and enter the following:$ curl -sS https://download.spotify.com/debian/pubkey_0D811D58.gpg | sudo apt-key add - <enter>$ echo "deb http://repository.spotify.com stable non-free" | sudo tee /etc/apt/sources.list.d/spotify.list <enter> $ sudo apt-get update <enter>$ sudo apt-get install spotify-client <enter>
How to fix tinny sound from Dell Inspiron 5000 series laptop speakers in Linux Mint 20 or Ubuntu 20.04 LTS
Linux Mint 20, Xubuntu or Ubuntu 20.04 LTS runs well on the Dell laptop. But, the recent upgrade to Linux Mint 20 or Ubuntu 20.04 LTS caused an issue of tinny sound from the the speakers. After trying several changes, I tried this below, and at least, using the pulseaudio equalizer, managed to make the … Continue reading How to fix tinny sound from Dell Inspiron 5000 series laptop speakers in Linux Mint 20 or Ubuntu 20.04 LTS
How to fix crackling distorted sound from speakers in Linux Mint 20 XFCE
The computer speakers crackle and give distorted sound at high volumes in Linux Mint 20 XFCE. To overcome this, open a terminal window and enter the following commands: $ alsamixer <enter>Use the right arrow key to locate the option for Auto-Mute. It will show enabled. Change it to disabled by pressing the down arrow key … Continue reading How to fix crackling distorted sound from speakers in Linux Mint 20 XFCE
How to install vlc and other applications not available in the Fedora repositories via rpmfusion
Fedora has not put the vlc media player in it's official repos. To install it and various other such applications not available in the Fedora repos, add the rpmfusion repository to the package manager and use it to download vlc. To add the rpmfusion repos, open a terminal window and enter the following commands: $ … Continue reading How to install vlc and other applications not available in the Fedora repositories via rpmfusion
Enable login sound in Linux Mint on the XFCE desktop environment
It is strange that Linux Mint has such great sound effects in Cinnamon and they can all be heard, but they do not work on the Linux Mint XFCE desktop. Fret not. The effects are there, but the sounds have to be enabled. This applies to the XFCE desktop in any Linux distribution. To enable … Continue reading Enable login sound in Linux Mint on the XFCE desktop environment
Extract audio stream from a video file using ffmpeg
To extract the audio stream from a video file using ffmpeg, open a terminal window and enter the following command: $ ffmpeg -i file.avi -vn -ab 256k -ar 48000 -y file.mp3 <enter> Note that the values 256 and 48000 in the above example can be changed per convenience.
How to extract Opus audio from MKV file
To extract the opus audio from mkv file, open a terminal window and enter the following command: $ ffmpeg -i Attention.mkv -acodec copy -vn audio.opus <enter>
How to find out the audio stream using ffmpeg in .mkv file
To find out the audio stream in the .mkv file using ffmpeg, open a terminal window and enter the following command: $ ffmpeg -i aaa.mkv <enter>
Clipgrab to download videos from online streaming sites
Use Clipgrap from https://clipgrab.org/ to download videos for offline viewing from sites like youtube.com. It supports a heap of other sites too. The list is at https://clipgrab.org/faqs/supported-sites
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