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Re: [Doepfer_a100] Re: Precise frequency meter

2014-11-07 by David Kellett

My need is more to explore ratios - especially, but not exclusively with FM. 

David

www.movingisliving.co.uk

Sent from my iPhone 

> On 7 Nov 2014, at 16:29, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Thanks, I think.
> 
> 
> 
>> On Nov 7, 2014, at 11:19 AM, "Florian Anwander fanwander@mnet-online.de [Doepfer_a100]" <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> Hello
>> 
>> Am 07.11.2014 17:11, schrieb Nicholas Keller maq163x2@gmail.com 
>> [Doepfer_a100]:
>> > Right, I just meant that I'd like to be as precise as possible when
>> > calibrating 1V/oct scale
>> I think I repeat my self every two weeks on that topic:
>> 
>> Doing the 1V/oct calibration with a frequency counter is quite stupid, 
>> because after each turn of the scale trim you have to readjust the 
>> offset trim. It makes it an endless game.
>> 
>> Instead: Use a tuner with a needle meter. Adjust only the scale and only 
>> look at the fact, that the needle no longer jumps when you do octave 
>> jumps (don't care for the absolute tuning). When you have reached the 
>> clean octave jumps, you set the offset once and you are done. With this 
>> method I can adjust a OB-Xa (16 VCOs!) within one hour.
>> 
>> Florian
> 
>

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