[sdiy] Frequency Counter Software try G-tune

[Modcan Synthesizers]

At 08:24 PM 10/10/2005, you wrote:
>Hi,
>
>Can anyone point me in the direction of an accurate (and preferably 
>free) frequency counter software for windows.
>
>It seems to me that this would be a very accurate and easy method of 
>tuning VCOs (especially since my sound card is clocked from a dead 
>stable RME A/D D/A interface).
>
>Seb
Hi,

I use G-tune.
It is a very convenient software strobe tuner.
I use it like a guitar tuner with the meter not the strobe
The thing that is great about it is you can resize the meter to full 
screen so you can see it from across the room.
Also when scale calibrating the oscillator, it doesn't have to be 
constantly re-tuned to a reference pitch
as the meter can be used relatively. When doing octaves the needle 
indicator doesn't have to be on zero
as long as it is as the same position on the meter.
It does up to about 5kHz at which point I use a pulse divider to do 
the upper octaves.
It works equally well with sine ,saw or square waves.
Hell it even does pitch to midi.
The guy who designed it Dr James H Clark also did the Peterson 
Virtual strobe tuner
I can get about 10 octaves with +/-2 cent accuracy using this method.
(until the wind changes direction that is)

Bruce