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Subject: Re: [gentoo-user] Typewriter sound
From: Albert Hopkins <marduk@letterboxes.org>
To: gentoo-user@lists.gentoo.org
In-Reply-To: <20100817184309.GA9068@solfire>
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<20100817184309.GA9068@solfire>
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Date: Tue, 17 Aug 2010 15:34:05 -0400
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On Tue, 2010-08-17 at 20:43 +0200, meino.cramer@gmx.de wrote:
> Bill Longman <bill.longman@gmail.com> [10-08-17 20:16]:
> > On 08/17/2010 10:56 AM, Albert Hopkins wrote:
> > > On Tue, 2010-08-17 at 19:20 +0200, meino.cramer@gmx.de wrote:
> > >> Hi,
> > >>
> > >> on YouTube there was a Blender-2.5 tutorial with audio.=20
> > >> There was an interesting detail: While there were spoken
> > >> instructions one can hear one typing on its keyboard.
> > >> Each hit on one of the keys made the sound of an old
> > >> typewriter (no, it was not the sound of the legendary
> > >> "IBM Model M" keyboard ;) ).
> > >>
> > >> How can I achieve this?
> > >> What software can I use to make this geeky feature to
> > >> come true.
> > >> Unfortunately I have no idea, how to name this kind
> > >> of what(?) ...
> > >>
> > >> Thank you very much for any hint in advance!
> > >> Best regards,
> > >> mcc
> > >=20
> > > There probably a number of ways to do this.
> > >=20
> > > A cheap and easy way would be to use xev to monitor a window and th=
en
> > > pipe the stderr to a a program that waits for a keypress event and =
then
> > > plays an apropriate.
> > >=20
> > > A less cheap way would be to have our program do what xev does inst=
ead
> > > of using a pipe.
> >=20
> > Or you could set your X keyclick using xset.
> >=20
>=20
> Hi,
>=20
> thanks a lot for your replies! :)
> Is there any program already, which does this?
> A daemon or...<insert missing words here>
>=20
> Best regards,
> mcc
>=20
>=20
Well I found out that when you pass window id to xev it does not trap
keyboard presses per-s=C3=A9. But there is another way...
Anway the following is a quick hack (in python). It pretty much works
except it also seems to trap mouse presses. I got the .wav file at
http://www.soundjay.com/typewriter-sounds.html
I tried using 'xset c' but it basically does nothing for me. My guess
is that it does work it basically sends the a BELL to the console.
--- 8< CUT HERE ---------------------------------------------------
import sys
import subprocess
soundfile =3D 'typewriter-key-1.wav'
def main():
window_id =3D sys.argv[1]
cmd =3D ['xev', '-id', window_id]
p1 =3D subprocess.Popen(cmd, stdout=3Dsubprocess.PIPE)
while True:
line =3D p1.stdout.readline()
if line.find('atom 0x14d') > -1:
subprocess.Popen(['aplay', soundfile],
stderr=3Dopen('/dev/null',
'w'))
if __name__ =3D=3D '__main__':
main()