A nice collection of all available siren sounds in a NYPD police car can be found at the NY Times.
The "Air Horn" sound going through a horn loudspeaker should give
the typical horn sound of ambulances.
The tools you need are described on blog.joff3.com.
There's also the nice youtube-dl package. One thing I noticed: the
Continue reading "Rip YouTube videos/audio"
ffmpeg command there re-encodes
the audio which might loose some quality. To just dump the audio off the Flash video, use:
I recently found this table which lists different audio formats and the bitrates where you'd reach similar quality.
Instead of playing music through usual audio players, there is the possibility of using the mpd - a daemon which
runs in the background and plays music.
Continue reading "Music Player Daemon"
The "Roger" beep after transmissions from Space missions is @ 2475 Hz for 250 ms. According to everything2,
there should be a pre-transmission tone @ 2525 Hz for 250 ms. They are called Quindar tones.