Frequency to Midi WITH pitch-bend?

This brings back memories. Before multi-timbral synthesizers there was a
dinosaur called the Yamaha TX816. It was 8 TX7 in a box. Each could play
one timbre at a time and reach had its own pitch bend wheel. To achieve
microtonality we used the fractional part of a midi number to set the pitch
bend position (see patch below). In my 1988 piece "Fractal Mountains" (link
below) you can hear this. It in 96 tones per octave.

http://www.timara.oberlin.edu/~gnelson/mp3s/Long.mp3s.html

NOTE: Pitch bend changes everything in the channel so notes already sounding
will bend too.

On 2/5/08 3:12 AM, "barry threw" wrote:

> I don't feel particularly good about this patch, but I think it does
> what you want...
>
> b
>
> #P window setfont "Sans Serif" 9.;
> #P window linecount 1;
> #P comment 430 250 54 196617 Pitch Bend;
> #P number 395 250 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
> #P newex 395 229 109 196617 scale -0.5 0.5 -64 63;
> #P newex 551 206 33 196617 - 1.;
> #P newex 395 187 166 196617 if $f1 < 0.5 then $f1 else out2 $f1;
> #P number 18 250 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
> #P newex 18 146 374 196617 expr int($f1)+($f1>=0)*(($f1-
> int($f1))>=0.5)-($f1
> #P newex 395 146 29 196617 t f i;
> #P newex 395 167 29 196617 - 0.;
> #P newex 18 123 228 196617 expr log10($f1/8.175798) / log10(1.0594633);
> #P flonum 18 106 66 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
> #P comment 53 250 110 196617 Base MIDI Note Number;
> #P connect 3 0 7 0;
> #P connect 2 0 5 0;
> #P fasten 2 0 4 0 23 143 400 143;
> #P connect 9 0 10 0;
> #P fasten 8 0 9 0 556 226 400 226;
> #P connect 7 0 9 0;
> #P connect 7 1 8 0;
> #P connect 5 0 6 0;
> #P connect 4 1 3 1;
> #P connect 4 0 3 0;
> #P connect 1 0 2 0;
> #P window clipboard copycount 12;
>
>
> On Feb 4, 2008, at 6:22 PM, don undeen wrote:
>
>>
>> Hi,
>> I've been looking at ftom for converting frequency numbers to midi
>> note numbers, but I'd also like to get more discrete pitch control
>> of my synthesizer, using pitch bend messages as well.
>> Assuming I can set the pitch wheel width on my Novation to 1/2 step,
>> what's the best way to convert frequency into midi note, and pitch-
>> bend values? The equation for ftom ( expr log10($f1/8.175798) /
>> log10(1.0594633) ) sort of blows my mind, so I'm thinking
>> calculating the pitch-bend would be some sort of similar type of
>> equation.
>> Surely someone else has already figured this out?
>>
>> thanks all!
>> don
>
> --
> Barry Threw
> Media Art and Technology
>
> San Francisco, CA
> Work: 857-544-3967
> Email: bthrew (at) gmail (dot) com
> IM: captogreadmore (AIM)
> http://www.barrythrew.com
>
> "The greatest of the changes that science has brought us is the acuity
> of change; the greatest novelty the extent of novelty."
> - J. Robert Oppenheimer
>

Cheers
Gary Lee Nelson
Oberlin College
www.timara.oberlin.edu/GaryLeeNelson