🚀 go-pugleaf

In comp.sys.next.misc, jalegre@htlv.med.umn.edu (John Alegre) writes:
>Are the standard phone tones for touch tone dialing available
>anywhere as NeXT sound files?

I haven't seen them anywhere.  But..

I wrote an application called PhoneTones that generates the tones.
It's a simple phone number directory and auto-dialer.  The application
is free, it's on sonata.  You can use it to generate the tones, but I
don't know any way to use the application to make sound files. (Well
actually - I guess if you could recorded the speaker output through the
microphone - but the quality wouldn't be too good that way.)

However, I sell the source (see the Info panel or write me for
details), which includes a touchtone object that you can use in your
application for generating the dial sounds, or for generating sound
files.  The object is a subclass of Sound so using it to make a sound
file is simple.  It generates the entire dial string as one sound
object and plays it every time you press the DIAL button.  It works
much better if you do it as one sound object instead of trying to
play a sequence of separate sounds.

Creating the tones isn't that hard if you want to do it yourself.  The
tricky part is doing it quickly.  The DTMF dial tones are just simple
sine waves.  Each DTMF tone is just two sine waves, of different
frequencies added together.  Each button is assigned a unique pair of
frequences.  I could send you the list of frequencies if you don't have
them and are interested in them.

Curt Welch
curt@kcwc.com
(703) 938-4152