If you are having trouble with the radio of your car that was imported from Japan and you cannot tune in to your favorite radio stations you might have to do a little math!
On many cars that were imported from Japan it seems that to tune in to the station you like you need to subtract from the frequency 16Mhz. For example, if the station you are interested in is broadcasting at 97.2Mhz you will have to set your car radio to 81.2Mhz to listen to it.
Because of reasons we wanted to find the IMSI of a SIM card and the MSISDN of its connection on a phone we had in our hands. We did not wish to install additional applications on that phone to get this information so we had to find an alternative method…
Just a quick example that applies both a high pass and a low pass frequency filter to a video file using ffmpeg The frequency is set in Hz so in this example we are filtering out all frequencies that are out of [200, 3000].
First: Install gnome-applets in order to get cpufreq-selector application. sudo apt-get install gnome-applets *NOTES: gnome-applets installs a LOT of stuff and will take more than 300MB of free space. Second: Check if your CPU supports frequency scaling sudo cpufreq-selector *NOTES: It will take a few seconds or more to…
