Is there a plug-in which can find a base tone frequency in..

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guitar e string (the lowest tone) sound 84.1 hz

then Is there a plug-in which can find a base tone frequency in a sound

when I record a guitar with "e" the lowest tone
and I use the program or plug in
the program show "84.1khz"
u got it?

Archived from groups: rec.audio.pro (More info?)

In article <1c7c168a.0411020438.546702e3@posting.google.com>,
bluesjeon@hotmail.com (bj) wrote:
> guitar e string (the lowest tone) sound 84.1 hz
>
> then Is there a plug-in which can find a base tone frequency in a sound
>
> when I record a guitar with "e" the lowest tone
> and I use the program or plug in
> the program show "84.1khz"
> u got it?

As Arny pointed out, it's 84.1 Hz, not KHz.

What can happen is that a complex sound like that from a bass guitar
will have harmonics and a fundamental. The pitch detection routine
sometimes isn't very sophisticated, and it can get fooled by the
presence of harmonics. This can cause the algorithm to track a harmonic
and not the fundamental. So, I guess this shows that whatever you used
to determine the pitch isn't foolproof.

AutoTune can work fairly well to show you pitch vs. time, but it's not
foolproof either, and it can get confused with low frequency tones as
well. There is a bass version of AutoTune that does better tracking LF
signals, but again, nothing's perfect.

A better question though is what do you want to do with that
information? It sounds like you already know the answer and the
software you're using isn't telling you that. So, you ignore the
software and proceed with what you know.

If you need to pitch correct LF instruments, then the bass version of
AutoTune (included with AT 3.x and probably AT 4.x) does an OK job if
you're careful using it. My past experiences with tuning basses using
AutoTune 2.x is that it can add clicks and pops when correcting, and you
then need to remove those after correction. Tedious, but if you need to
make it happen, it'll work. 3.x is supposedly much better but I haven't
had the opportunity to correct LF instruments yet using 3.x


Best of luck,

Monte McGuire
monte.mcguire@verizon.net

Archived from groups: rec.audio.pro (More info?)

<< then Is there a plug-in which can find a base tone frequency in a sound
>>

Use a parametric EQ with a tight Q and a lot of boost. Sweep the frequency
until you find the fundamental you're looking for.


Joe Egan
EMP
Colchester, VT
www.eganmedia.com

Archived from groups: rec.audio.pro (More info?)

In article <1c7c168a.0411020438.546702e3@posting.google.com>,
bj <bluesjeon@hotmail.com> wrote:
>guitar e string (the lowest tone) sound 84.1 hz
>
> then Is there a plug-in which can find a base tone frequency in a sound
>
> when I record a guitar with "e" the lowest tone
> and I use the program or plug in
> the program show "84.1khz"
> u got it?

It's called a frequency counter. I am sure you can find one in software,
but Wavetek makes a nice one in hardware that's around a hundred bucks.
Also lots of DVMs now have frequency counter functions which are just fine
at low frequencies like audio.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."