[ntp:questions] Using NTP to calibrate sound app

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Mon Jan 28 23:35:15 UTC 2013


unruh wrote:> Jeroen Mostert wrote:
>> Even if you consider accurate detection of 1 cent to be
>>   good enough for tuning  purposes, your measuring equipment
>>   still needs to be an order of magnitude better.
>>  A 0.1 cent difference is 57.8 ppm. 12 ppm is 0.02 cent,
>>   which isn't excessive if you're going for 0.2 cent accuracy.
>
> ?? And if you are going for 10^-12 cent accuracy it is horrible.
>  But why would you be going for .2 cent accuracy?

e.g. <http://www.petersontuners.com/index.cfm?category=70>
 Claims "display relative tuning of any audio source
  to 0.1 of a cent (1/1000 of a semitone) accuracy"

(Shrug)

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