[PD] Re: beginners Fiddle~ questions

[Conor]

Cheers guys,
the penny dropped early this morning.

Conor

pd-list-request at iem.at wrote:

>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
>
>
>
>  
>
>Message: 3
>Date: Mon, 17 Oct 2005 11:22:12 +0200
>From: Frank Barknecht <fbar at footils.org>
>Subject: Re: [PD] beginners Fiddle~ questions
>To: pd-list at iem.at
>Message-ID: <20051017092212.GC10700 at fliwatut.scifi>
>Content-Type: text/plain; charset=us-ascii
>
>Hallo,
>Conor hat gesagt: // Conor wrote:
>
>  
>
>>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?
>>Seems to be mapping 1 per semitone. 
>>    
>>
>
>Yes, it's midi-ish. You can convert to frequency using [ftom] after
>the [unpack 0 0]
>
>Ciao
>  
>