press ctrl+g to get a bell. or you may want to use the unixcw package (which actually does to morse-code) On Sat, 22 Jan 2005, Thomas Stivers wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > - ----- Forwarded message from Sam Watkins <swatkins@xxxxxxxxxxx> ----- > > From: Sam Watkins <swatkins@xxxxxxxxxxx> > Subject: Re: Playing tone through speakers > > I thought you might find this interesting. > > On Fri, Jan 14, 2005 at 01:19:20PM -0600, Michael Satterwhite wrote: > > So the correct question would be: Does anyone know of a utility that > > would play a continuous tone of a specified frequency through the > > speakers attached to my SoundBlaster Live? > > Yes, I wrote one, it's called "bell". It's OSS specific at the moment, > but I suppose it would work with ALSA's OSS emulation. > > http://nipl.net/hacks/ > > It's written in my C dialect, which has a python-like syntax, and uses > some libraries I wrote. Here is the source code: > > http://nipl.net/hacks/bell.b > > I wrote a program yesterday to automatically make standalone source > files so I wouldn't have to burden you with my libraries. Here is the > source code including the bits of my libraries it needs: > > http://nipl.net/hacks/bell.b1 > > Here is the C translation, this is the one you'll need if you want to > compile it yourself: > > http://nipl.net/hacks/bell.c > > And here is an i386/linux elf executable: > > http://nipl.net/hacks/bell > > > To compile: > > gcc -Wall -lm bell.c > > Usage: > > bell <freq> <amplitude> <duration> > > Examples: > > bell 440 1 1 > > gives an A440 tone at max volume for 1 second. > > bell 220 0.5 0.1 > > gives an A220 tone (one octave lower) at half volume for 0.1 second. > > > If you are musically inclined, you might want to do something like this > to use semitones instead of hertz (beware, perl code): > > sub bell { > my ($pitch, $duration, $volume) = @_; > $volume = $ENV{bell_volume} if @_ == 2; > my $freq = 440 * 2 ** ($pitch / 12); > system("bell", $freq, $volume, $duration); > } > > I should probably modify the bell program to do this itself. > > > I wrote this bell program as part of my "voice editor", "ved", which is > intended for blind people to record and edit speech, or for people to > record audio-books, or for children who have trouble writing or typing > to be able to record stories for school then write them down later. > I found it was quite good for recording a diary too. > > It allows you to record your speech, automatically splits the recorded > sound into sentences and omits stretches of silence. You can browse > back and forth and change things, insert new recorded speech, etc., play > back the recording at various speeds (using sox), structure your work > into paragraphs and chapters and browse around a paragraph or chapter at > a time, etc. I wrote it for my grandmother who cannot see very well. > > I intend to release "ved" as free-software, would anyone be interested > in using it when I do? > > > - -- > To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx > with a subject of "unsubscribe". Trouble? Contact listmaster@xxxxxxxxxxxxxxxx > > > > - ----- End forwarded message ----- > > - -- > "Debugging is twice as hard as writing the code in the first place. > Therefore, if you write the code as cleverly as possible, you are, > by definition, not smart enough to debug it." - Brian W. Kernighan > > Thomas Stivers e-mail: stivers_t@xxxxxxxxxxxxxxxxx > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.0 (GNU/Linux) > > iD8DBQFB8p1w5JK61UXLur0RAgjtAJ94cJFS6c090fVK+K+/0BkTa0Ys6wCZAcvh > v3+jyIAgcEWF2O/CIAYd+oc= > =dzI7 > -----END PGP SIGNATURE----- > > _______________________________________________ > > Blinux-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/blinux-list > -- Andor Demarteau E-mail: andor@xxxxxxxxxxxx student computer science www: http://www.nl.linux.org/~andor UU based & VU guest-student jabber,icq,msn,voip: do ask ;) ----------- chairman Stichting Studiereizen Storm 2002-2004 vice-chairman USF Studentenbelangen executive committee 2002-2003 _______________________________________________ Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list