Thanks, David. A 1980s microcomputer offered a built-in function to do this as a matter of course. That was back in the days when we thought it smart to play Three Blind Mice with a sequence of beeps. But nowadays such a simple facility seems to have dropped off the menu. If I knew more UNIX I suspect it wouldn't be a problem.
If nobody knows a straightforward way I'll have to fiddle with one of the more involved ways you suggest. Like outputting a WAV file and then playing it. Audacity will indeed generate me a 1 sec WAV of any spot-frequency -- in any waveform I like -- and also tell me the name of the nearest musical note. I've used it before for the 7 classical planets. They chime pretty well together (a fact that historically cried out for explanation). But I don't know how to use Audacity like a driver. And I was hoping for a more general facility, to grace a series of simple math articles. I didn't know OEIS offered a way to play any number sequence as a sound (thanks for that) -- but Mathematica certainly does. The Riemann Zeta function sounds really spacey. Mathematicians are shy of admitting the utility of "displaying" a time-series in this way. Applied to market prices, you might even be able to train your ear to hear the crash coming. :-) On Tue, Jul 12, 2011 at 1:01 PM, David Ward Lambert <[email protected]> wrote: > I'd recommend nyquist or nyquist + audacity if I could figure out how to > use them. You'd have the choice of synthesized instruments as well as a > sine wave, and many output formats. > > There must be a way via web browser, I'm sure you're aware the the > online encyclopedia of integer sequences provides an option to play the > sequence. > > I apologize for responding---I do not know the answer. > > Dave. > > Message: 5 > Date: Tue, 12 Jul 2011 04:21:05 +0100 > From: Ian Clark <[email protected]> > Subject: [Jprogramming] Music of the spheres > To: Programming forum <[email protected]> > Message-ID: > > <CAB2g=gcv0g_k8bm92bukbnswmls7rv9g4012pqryq_vyofa...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > If I have a noun: 194.18 > (the value, in Hz, as it happens, of the 24th octave above the > "musical note" of the solar day... other planetary periods to be > substituted) > does anyone have a simple way of generating a brief audible tone of > that frequency? > > Mac or Unix please, not Win. > > Just a verb to emit the sound will be fine for now. Generating a WAV > file to play conventionally is a likely future requirement. > > > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
