java version of Terhardt's virtual pitch algorithm

Don't know if I found this here, but this is a good page...

http://home.austin.rr.com/jmjensen/VirtualPitch.html

-C.

--- In tuning@yahoogroups.com, Carl Lumma <ekin@l...> wrote:
> Don't know if I found this here, but this is a good page...
>
> http://home.austin.rr.com/jmjensen/VirtualPitch.html
>
> -C.

Thanks, Carl

I announced it here I guess a couple weeks ago. I know
Graham Breed would be interested also, but he seems to have
shut down his microtonal site and gone to China(?)

--Jeff

jjensen142000 wrote:
> > --- In tuning@yahoogroups.com, Carl Lumma <ekin@l...> wrote:
> >>Don't know if I found this here, but this is a good page...
>>
>>http://home.austin.rr.com/jmjensen/VirtualPitch.html
>>
>>-C.
> > > Thanks, Carl
> > I announced it here I guess a couple weeks ago. I know
> Graham Breed would be interested also, but he seems to have
> shut down his microtonal site and gone to China(?)

Yes, looks good! I was offline a couple of weeks ago, and must have missed it in the backlog. And I notice there's source code, so it could potentially use up a lot of my time!

One thing I was interested in is using the strength of the acoustic root as a measure of consonance. This applet doesn't appear to show a distinction between chords I'd expect to be fairly well rooted, and completely rootless ones. Appearances can be deceiving, however -- well rooted chords simply have the weight spread among different octaves. If the weights could be added up, it would probably be closer to the acoustic root phenomenon, which is supposed to be octave equivalent. Certainly, something needs to be done with the octaves, and this is the simplest way I can think of.

I didn't shut down my site, it got shut down through neglect and I haven't been able to re-start it yet. The best advice I can offer anybody who misses it is to use the Wayback Machine:

http://web.archive.org/web/20031204012642/http://microtonal.co.uk/

or

http://podzooey.notlong.com

as the new site isn't even accessible through the IP address any more.

Nothing to do with tuning, but I've also got some pictures here:

http://www.greatestcities.com/users/x31eq

so you can see what I've been up to.

Graham

--- In tuning@yahoogroups.com, Graham Breed <gbreed@g...> wrote:
> jjensen142000 wrote:
> >
> > --- In tuning@yahoogroups.com, Carl Lumma <ekin@l...> wrote:
> >
> >>Don't know if I found this here, but this is a good page...
> >>
> >>http://home.austin.rr.com/jmjensen/VirtualPitch.html
> >>
> >>-C.
> >
> >
> > Thanks, Carl
> >
> > I announced it here I guess a couple weeks ago. I know
> > Graham Breed would be interested also, but he seems to have
> > shut down his microtonal site and gone to China(?)
>
> Yes, looks good! I was offline a couple of weeks ago, and must
have
> missed it in the backlog. And I notice there's source code, so it
could
> potentially use up a lot of my time!
>
> One thing I was interested in is using the strength of the
acoustic root
> as a measure of consonance. This applet doesn't appear to show a
> distinction between chords I'd expect to be fairly well rooted,
and
> completely rootless ones. Appearances can be deceiving, however --
well
> rooted chords simply have the weight spread among different
octaves. If
> the weights could be added up, it would probably be closer to the
> acoustic root phenomenon, which is supposed to be octave
equivalent.
> Certainly, something needs to be done with the octaves, and this
is the
> simplest way I can think of.
>

Hi Graham

Nice to hear from you!
I should have fired you off an email a few weeks ago, but when I
saw your site was gone, I guess I assumed that you weren't so
interested in this stuff anymore....

I have thought of adding up the weight values for various pitch
classes, but after spending a couple of intense months on the
applet, I'm shifting to other projects for a while. I am also hoping
to get feedback from various people who have studied this subject
in detail, so maybe I'll get some insight into what further
directions to persue.

--Jeff