Scratch the measurements from the last two days. I’ve been puzzled by the frequency readings I’ve gotten in Audulus – made using the Mic (External Input) 1 and ZeroCross nodes. (Calculating the deviations in cents was also done in with a little patch using the Audulus Hz2o (Hz to octave) module.)
I found a little tuner app that displays deviations in cents nice and clearly, and tried making some measurements with it directly via my iPhone’s microphone. I could set the ODDYSEi master tuning back to 440 and have the frequency register as a perfectly tuned A4 on the app – which is what one whould expect. The ODDYSEi Equal tuning matches equal temperament perfectly according to the tuner – which makes sense, also aurally! It turns out that Analogue tuning is calibrated to a near perfect A3 (220Hz) and gradually gets sharper as one moves up over the next 3 octaves. Inversely, moving down gradually gets flatter.
ARP ODDYSEi Analog tuning deviations in cents over 6 octaves:
(The measurements for the lower 2 octaves fluctuated a lot and were therefore more tricky to notate precisely.)
Modular Diary – 024: Scratch the measurements from the last two days. I’ve been puzzled by the frequency readi… rdgr.me/u/17ujdih