Re: tuner programs

On Friday 26 July 2002 03:54 am, you wrote:
> Does anyone know of any tuner programs (MSWin or Mac, I suppose) that have
> a graph of frequency over time, for the past few seconds at least?
>
> Something like this tuner is interesting:
> http://www1.ocn.ne.jp/~tuner/tuner_e.html
> but I'd really like something that showed the frequency(ies) not just at
> the exact present, but also for the past few seconds.
>
> The reason I ask is that besides my role in life as the ineluctable
> roustabout of Perldom, I do tech support for projects to study, preserve,
> and teach Native American languages.  A guy I know is trying to learn the
> system of tones in Cherokee, but he doesn't have much of an ear for
> it.  It'd really help to have a way to basically have real-time pitch
> plots.

Dr. Larry Saul at UPenn has created a realtime (fundamental) pitch detector 
and wrote a rpogram for it dubbed "Extreme karaoke". No doubt something like 
it could be used to teach your friend needed pitch variations. Check out the 
paper "Real time voice processing with audiovisual feedback: toward 
autonomous agents with perfect pitch." at 

http://www.cis.upenn.edu/~lsaul/

Sadly, I don't think any of it is in Perl.

	-Mark