play -c 2 -n synth pinknoise band -n 2500 4000 tremolo 0.03 5 reverb 20 gain -l 6

Make some powerful pink noise

This generates some powerful but relatively unobtrusive waterfall-like noise. Good if you need to get serious stuff done while your next-door neighbor is throwing a very loud party. You need the sox package installed.

By: lordtoran
2011-11-19 22:40:42

These Might Interest You

  • Substitute 'brown' with 'pink' or 'white' according to your taste. I put this on my headphones when I'm working in an "open concept" office, where there are always three to five conversations going in earshot, or if I'm working somewhere it is "rude" of me to tell a person to turn off their cubicle radio.

    /usr/bin/play -q -n synth brown band -n 1200 200 tremolo 0.05 80
    Mozai · 2011-04-26 19:37:08 1
  • Say your dependencies specified in your Makefile (or dates on your source files) is causing 'make' to skip some source-files (that it should not) or on the other other end, if it is causing make to always build some source-files regardless of dates of target, then above command is handy to find out what 'make' thinks of your date v/s target date-wise or what dependencies are in make's view-point. The egrep part removes the extra noise, that you might want to avoid. Show Sample Output

    make -d | egrep --color -i '(considering|older|newer|remake)'
    b_t · 2011-06-03 01:55:08 1
  • This command will generate white noise through your speakers (assuming you have sound enabled). It's good for staying focused, privacy, coping with tinnitus, etc. I use it to test that the sound works.

    cat /dev/urandom > /dev/dsp
    joem86 · 2009-02-18 21:40:29 0
  • Default interface is wlan0, change as appropriate. This simply strips all the noise from the iwlist output in order to make it easier to skim. It makes sense to make this a very simple shell function, replacing the iwlist call with something like: iwlist "${1:-wlan0}" # append pipe etc. This makes wlan0 the default if the function receives no arguments. Show Sample Output

    iwlist wlan0 scan | sed -ne 's#^[[:space:]]*\(Quality=\|Encryption key:\|ESSID:\)#\1#p' -e 's#^[[:space:]]*\(Mode:.*\)$#\1\n#p'
    unixmonkey17146 · 2011-01-25 14:50:34 2
  • Full command: for f in input/*; do BN=$(basename "$f"); ffmpeg -i "$f" -vn "temp/$BN.flac"; sox "temp/$BN.flac" "temp/$BN-cleaned.flac" noisered profile 0.3; ffmpeg -i "$f" -vcodec copy -an "temp/$BN-na.mp4"; ffmpeg -i "temp/$BN-na.mp4" -i "temp/$BN-cleaned.flac" "output/$BN"; done This was over the 255 character limit and I didn't feel like deliberately obfuscating it. 1. Create 'input', 'output' and 'temp' directories. 2. Place the files that you want to remove the hiss/static/general noise from in the input directory. 3. Generate a noise reduction profile with sox using 'sox an_input_file.mp4 -n trim x y noiseprof profile', where x and y indicates a range in seconds that only the sound you want to eliminate is present in. 4. Run the command.

    for f in input/*; do BN=$(basename "$f"); ffmpeg -i "$f" -vn "temp/$BN.flac"...
    samcamwilliams · 2015-03-01 02:48:19 0
  • It find out the mic recording level at the moment of run the command and if a noise level is higher it starts to record an mp3 file. The resulting file will have only the sounds not the silences.

    arecord -q -f cd -d 1 recvol.wav;sox recvol.wav -n stat 2>&1|grep RMS|grep amplitude|cut -d"." -f2|cut -c 1-2>recvol;echo $((`cat recvol`+1))>recvol;rec -t wav - silence 1 0.1 `cat recvol` -1 1.0 `cat recvol`%|lame -s 44.1 -a -v - >record.mp3
    geaplanet · 2014-02-27 23:23:55 0

What Others Think

this will not work under ubuntu what should i use? I keep trying this command and I get the gain useage message,
unixmonkey28066 · 336 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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