Hi Conor,

On Mon, 2005-10-17 at 09:07 -0700, Conor wrote:

Hi folks,

very new to this PD malarky... so please be a little patient. I have ruditmentary question on the output of the fiddle~ object. I simply do not know on what type the pitch (left most output) is ? Is it in terms of MIDI(0-127), some arbitrary scale?

It is on the MIDI note 'scale', but expressed as a floating point number, with 4 decimal places of precision. This gives you the ability to work out microtonal deviations from pitch.

You can verify this by doing something like:

float in (MIDI note number) | mtof | osc~ | fiddle~ 2048 | float out

mtof and ftom convert between frequency and MIDI.

Seems to be mapping 1 per semitone. The fiddle~ in my patch has npoints arguments = 2048 ( i noticed that any size smaller produces a very erratic response), 1 for the number of pitches to output and the last two arguments empty. I was using a guitar(semi-acoustic) as input. totally rookie question but has me stumped.

There is trade of with FFT (which fiddle uses), where a smaller window will give you better resoultion in time but worse frequency resolution and vice versa. Do a Google for 'fft bin', that should throw up some theory.

Jamie