[sdiy] Software to log frequency every x seconds?

[Mike Beauchamp]

I went ahead and contacted the person that programmed the Chromatic
tuning program that I've been using to calibrate VCO's, and ask him if
he could add a frequency logging feature. He said that the feature
will definitely make it into the next release!

The program is here: (free, but with limits. $20 to register)
http://www.fmjsoft.com/ctmain.shtml

There's already actually a section to log frequency, and it does this
every time a button is pressed. So a quick "Hack" to enable logging
would be to use a mouse emulation program or something to click the
mouse every x seconds.. then save the log to a file.

Whether or not the data is useful (I think it is, but I'll leave it to
you guys to further discuss), I think this is a pretty decent way of
going about it, considering I can take the log file created and import
it into whatever software I want to graph, etc.

When the next version comes out that supports automatic logging, I'll
be sure to post it here.

Mike


On 10/3/07, Grant Richter <grichter at asapnet.net> wrote:
> Thank you for re-enforcing my point. Since this is "synth-diy" the
> assumption is the target audience is musicians.
>
> The relationship between frequency and pitch is subjective and
> affected by many factors.
>
> That is why an instrument targeted to the specific sensory axis (a
> chromatic tuner) is going to produce more useful information.
>
> Frequency counters can respond to musically spurious information like
> RF switching noise on transients and resets. These extra counts act
> as "sensor ghosts" which are misleading.
>
> Because of this, the frequency counter information is more likely to
> be misleading about useful music performance.
>
> Engineering schools produce a fixed set of "orthodoxy" which
> engineers are reluctant to deviate from. This represents an
> "opportunity cost" for the engineer.
>
> Using the methodology of the target user group is more productive.
>
> On Oct 3, 2007, at 1:03 PM, Derek Holzer wrote:
>
> >
> >
> > Grant Richter wrote:
> >> Why would you want to log frequency for a musical oscillator?
> >
> > Because he wants to know if the frequency drifts. Tracking it on a
> > frequency analysis program will quickly show whether it is drifting
> > or not, and by how much in Hz.
> >
> >> As you can see, frequency doesn't tell you much about pitch.
> >
> > But there is a predictable relationship between them.
> >
> >> And they are not the same thing.
> >
> > "Pitch" can be (and always is, mathematically) expressed by
> > frequency. The relationship is easy to look up. In fact, "pitch" is
> > a somewhat imaginary label given to the physical phenomenon of
> > frequency in Hz.
> >
> > And not all of us use Western musical notes in our synthesizers ;-)
> >
> > best,
> > d.
> >
> > --
> > derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/
> > macumbista
> > ---Oblique Strategy # 192:
> > "Your mistake was a hidden intention"
>
>
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