Leigh Marble

It seems there should be an easy way to do this, but I'm stuck: I want a readout like spectroscope~ (in spectrogram mode), but where the peak frequencies are held until reset. This would give a clear picture of the frequency response, when sweeping frequencies through an object/circuit/room. Ala Spectrafoo, or FuzzMeasure.

Checking the possible messages you can send to spectroscope, I don't see any peak holding ability... anyone got some clever ideas?

peak-hold-on-spectroscope-sweeping-frequencies

here is one solution using the FTM library. It should be possible to 

recreate this using Jitter instead. FTM can be downloaded here:

http://recherche.ircam.fr/equipes/temps-reel/ftm/index.html

here is one solution using the FTM library. It should be possible to 
recreate this using Jitter instead. FTM can be downloaded here:

Thanks for that idea. Unfortunately for me, the current version of FTM only runs on OS X 10.4, and I'm still at 10.3. Does anyone have an older, compatible copy they would be so kind as to email me?

There is info on how to install FTM 1.7.5 on OS 10.3 at the FTM wiki:

Just take the FTMlib.framework and copy it into /Library/Frameworks

Just take the FTMlib.framework and copy it into /Library/Frameworks
and it should work.
It works for me!

Thanks for these tips, I missed them. I've got this patch working now on a 10.3.5 system.

While you are at it, you might also want to check out the help patch for 

gpr.peaks. It is sort of related, tracking the N current peaks 

(frequency and amplitude) in the specter.

While you are at it, you might also want to check out the help patch for 
gpr.peaks. It is sort of related, tracking the N current peaks 
(frequency and amplitude) in the specter.

peak hold on spectroscope / sweeping frequencies