Hi all, I kind of new to Pd and this is my first post here so bare over with me

I'm trying to make a synth-like patch that gets a signal in (from a microphone) and control an oscillator (osc~) so that the notes coming out is always within a certain (selectable) scale and key. I've already made a small patch that process the signal from the microphone, so my incoming signal is auto-calibrated to be between 0 (no signal/activity) and 1 (max signal/activity).

I now want to spilt my interval up in say 8 (I select major/ionian scale, and for instance the key C), so for an incoming signal of 0 it plays C3. If the signal become larger a D3 will be heard, and so on. For max signal I will hear C4. If I get for example a F3 and the signal gets weaker it should play E3. (hope you get the idea)

I know how to adjust the scale with just adding to a midi-note-number, so I reckon it would be easier to operate with midi-numbers rather than frequency...

I'm unsure on how to implement this. Maybe I should define all the different scales I want to use in tables, and pick notes from it by moving back and forth within the table (if this is possible) or maybe it's a smarter solution.

I hope any of you have any ideas. I know my explanation was not the best, but I want the end result to be a patch which let me play it like an instrument with the input from a microphone, always in tune with selected key/scale.

[adc~]
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[module with noise filtering and auto-calibration (already made this)]
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[magic module I need help with ]
| \
[osc~] or: [mtof]
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[dac~] [osc~]
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[dac~]

Any ideas or reflections will be greatly appreciated,

best regards,
ZnakeByte

Hi,

I've built a control patch some time ago, doing not exactly what you want, but it's close enough.

The only problem might be the input values you might need to scale your values directly beetween 0 and 7 instead of 0 and 1.

Try it out and tell me what you think of it...

http://www.pdpatchrepo.info/hurleur/MagicModule.zip

Thanks BerengerRecoules.

I also understood that I needed first to map my range (0-1) to the index numbering of my table. And hurray! After some more searching I suddenly understood how to make this work. The solution was quite simple, but nevertheless; It works quite similar to what I wanted. Se the attached file for a simple test patch.

You experienced PD users out there will probably laugh of my problem and solution, but for a newbie like myself it was quite satisfying to make it work

To "play" the patch, adjust the test-input number box. The patch expect a high value first to calibrate the range.

Now comes the work to implement different scales, keys and a octave-selector, but I know how to do this.

http://www.pdpatchrepo.info/hurleur/kema_osc_test2.pd