The following are questions comonly asked by users and site visitors, if you have any questions that should be on this list please email us at support@ezytuner.com:

1. What are hertz?
2. What are cents?
3. I have an X instrument, will EzyTuner work with that?
4. I don't use 440Hz as the reference frequecy for A, can I change it?
5. How do I calculate the frequency of X note at N octave?

1. What are hertz?

A unit of frequency equal to one cycle per second. For example an A octave 4 is 440Hz, this means that there will be 440 amplitude peaks a second.

2. What are cents?

Cents are way of measuring the difference between the target frequency and the current frequency. Multiplying the frequency by 1.000578 will give you the frequency one cent larger.

The frequency of the note A at the fourth octave is 440Hz, therefore one cent is 440*0.000578=0.254Hz. Someone with a good ear can usually hear a 2 cent difference.

3. I have an X instrument, will it work with that?

EzyTuner has been tested with guitars and a bass. Basically it can detect any frequency, or a strong harmonic, between 50Hz and 1000Hz. If you have an instrument that it doesn't work with we'd love to hear about it to see if we can get it working, or if it does work with your instrument we'd love to hear about it, please email us at support@ezytuner.com . Our best suggestion is to download the 30 day trial and try it out.

4. I don't use 440Hz as the reference frequency of A, can I change it?

You sure can. Simply select Tuner->Settings from the menu, you will see there is a setting for the frequency of A, simply change that to what you require. Whenever you start the application from now on it will use the new frequency you have set.

5. How do I calculate the frequency of X note on the N octave?

Ok, its time to pull out your calculators, heres how it is done for guitars. First of all we usually use the frequency of A at the forth octave to base our calculations. You can find the frequencies of A's by multiplying and dividing by 2, so A at the third octave would be 440/2=220Hz and at the fifth 440*2=880Hz. Now each note is the twelfth root of 2 apart (ie 2 to the power of 1/12). So A# on the forth would be 440*(2^(1/12))= 466.16Hz. Hope I haven't lost you, so from this we can calculate the whole table!

Check out this link for more details.