@jameslo Not derailed! Just expanded and extended

I just want to thank everyone for the detailed responses here, which has inadvertently but interestingly diverged into a slightly different topic. It makes interesting reading.

PD-Pi

You mean how it works internally? Probably a modulo function.

Hi
I'm not sure what the PD equivelants are, but in Max I would have done this with rate~ on a central phasor. I think (it's been a while )

Brendan

Hi
if you share the important elements (Bela --> PD) from your patch here, we'll certainly have a look - I'm not familiar with Bela myself but have experience using Arduino with PD.

PD-Pi

yep! you're right, i'll keep chipping away at this, thanks

Thanks for chipping in. I should have mentioned a few things: this won't be a commercial or professional product, just for my own noodlings (I was looking at Behringer's recent line of HW synths and thought, why am I spending money, just build one in PD). So, the detail you mention isn't critical to me.

I could of course just make two different versions and see which one I like the sound of; plus, doing it that way will throw up any issues along the way.

Thanks again
Brendan

Morning good people,
I'm making steady progress on a simple polyphonic MIDI synth, and the post title says it all really. I have a single phasor driving a variety of oscillators (rect, saw etc), and am about the polyphonise (?) it. Would you put that phasor inside the clone object, where the shaping functions will go, or not? An 'outside' signal will of course go to all voices, and there may be phase issues with mutiple copies if I put it inside.

Kinda answered my own question there, but would love to hear your thoughts

PD-Pi

from Miller's book " In case you were hoping, subtractive filtering can't remove foldover once it is present in an audio signal."

The learning continues. . .

Thank you so much for these, will get stuck in later today.

xx
Brendan

I went with this - it is subjectively okay

Hallo
sorry to bang on about this - I have done further reading and cannot find a simple solution to antialiasing a square wave oscillator. There is of course the [square~] object in Purr Data - should I just use that?

Many thanks
Brendan

Thank you @fishcrystals, I must check out that library.

Brendan

Love this detailed and clear answer, and I suspected it was as you describe: If the waveform spends more time per period < or > 0 it is perceptually 'louder', + overtones. Just checking that I'm not mistaken. I'll filter to taste.
Brendan

Hi good people
I'm building a semi-modular synth in PD, with no prior experience, and step 1 is choosing wave shapes (sine, triangle, saw and pulse/rect). I've seen examples where they've used a lookup wavetable for oscillator waveforms, but I'm just using a single [phasor~] and then some simple maths operations to change its shape. I'm not imagining it, but the saw and square sound way louder and harsher than the other two. Is it common practice to reduce their amplitude and/or apply a low pass filter? Or should I be using a wavetable?

Many thanks for any help
Brendan

Hallo good people
I have already searched the relevant forums, and the TouchOSC manual but I am still struggling to get OSC data into Purr Data.

I am able to successfully parse OSC data from, for example, Sonic Pi into PD (via localhost) on the same machine. I have recently installed TouchOSC on my Android tablet, and installed Protokol (network messaging monitor) on my MacBook. All the OSC messages from TouchOSC (tablet) show up inside Protokol (MacBook), but [netreceive -u -b], [listen 800( in PD shows nothing. Do I need to tell [netreceive] where the OSC data is coming from (the connect 192.x.x.x message doesn't work)?

I'm afraid terms like Host, Client, server etc mean nothing to me, so is there a step by step guide out there for my issue please?

[EDIT] Muppet - I had to close Protokol!! All working fine now. Told you I was a n00b :D
<3
Brendan

Thanks for replying, and for the tip. I'll try it, and also watch out for any PD updates

Brendan

Hi chums,
In Purr Data I really like the Solarized (Inverted) GUI preset, but I'd like to make the font colour and border edge colour a tiny bit brighter. Anyone successfully edited this preset file, and where does it live?

Many thanks
Brendan

Thank you so much for your prompt and comprehensive response - that's a lovely little collection of tutorial patches, thank you so much - this is working perfectly now.

Brendan