Spline Waveshaper

Shifrin · 9 Dec 2005

Cheers sam, this looks really cool - if only I had more time tonight to look at it's innards! 😉

Shif.

dasdeck · 9 Dec 2005

another thing you made that makes me want to use it 😀

thanks sambean

I'll make a velocity mapper out of it if its possible.mmh.. seems not? the wavetable is nessesarry mhh?

(i assume you dont mind?)

D3CK

sambean · 9 Dec 2005

Cheers folks 🙂

(i assume you dont mind?)

Not at all, feel free to do with it what you please..

It may a bit fiddley mapping an arbitrary x value to a y value, just trying to think of a way to that now myself..

Sam

sambean · 10 Dec 2005

One step closer to audio.. 😀

Have managed to reduce the XY coordinates into a single array, 512 elements wide.. Should be good now for midi FX dasdeck.. 🙂

Just need some kind of way to copy the array into a mem or have some sort of array to stream.. [:hint:]

http://freespace.virgin.net/cc.lai/waveshaper/Waveshaper_10.osm

Any probs, let me know..

Sam

[edit]It's still a bit buggy.. It'll crash sometimes when you change the resolution.. Something to do with the module that converts it to an array.. Still works without changing reso..[/edit]

[edit]Updated download to new version[/edit]

infuzion · 10 Dec 2005

neato sambean!

2 suggestions: * some way to delete a dot * a way to disern what dots are after eachother (since you can't move a dot past others), eg dots get lighter to the right

Shifrin · 10 Dec 2005

That's looking so cool, I have a few ideas for this sort of thing! Shame I'll not be able to look at the schematic for a few days (at g/f's for the weekend) 😉

Shif.

dasdeck · 10 Dec 2005

infuzion wrote: neato sambean!

2 suggestions: * some way to delete a dot

just drag the dot out of the visible area, then it will get deleted 😉

D3CK

sambean · 10 Dec 2005

infuzion wrote: neato sambean!

2 suggestions: * some way to delete a dot * a way to disern what dots are after eachother (since you can't move a dot past others), eg dots get lighter to the right

Cheers Infuzion, it would be quite easy to have the point colours in a gradient and have the option in the properties.. I'll try it out..

Fixed the bug in the last release.. Here's an updated version which is more stable (I had made a sort of thread retrigger using a loop in the last version..)

http://freespace.virgin.net/cc.lai/waveshaper/Waveshaper_10.osm

Sam

rl · 10 Dec 2005

sambean wrote: If anyone can devise a way to get the curve into a wavetable either as interpolated data or splines as well, then we can have some fancy curves for our distortion, compressors, oscillators, etc. etc.

Hmm, just thinking loud -not tried yet. FloatArray could be transformed into Graph data using looped FloatArrayGetAt and GraphCreate. Then there is this GraphToPoly module. I have no idea wether GraphToPoly does bandlimiting though.

To store data persistently maybe a VSTParameterArray could be used between the FloatArrayGetAt and GraphCreate modules.

sambean · 10 Dec 2005

😀

Thanks rl, the answer was right in front of me...

Here's it is again with audio...

http://freespace.virgin.net/cc.lai/wave ... per_12.osm

With the properties you can select whether you want the waveshaping symmetric or not..

It's seems quite bug free and seems to be doing what it should, but there may be something I've overlooked..

Could probably do with some oversampling, but can sort that out later..

Enjoy..

Sam

Kara · 10 Dec 2005

Looks great

Thanks !

Rony

Shifrin · 11 Dec 2005

Fantastic!!! 😀

Shif.

fritzman · 11 Dec 2005

Sam, that's super great! Thanx a lot, FRitz

Tom7777 · 11 Dec 2005

This is really cool, thanks sambean 🙂

Kingston · 12 Dec 2005

Awesome! gonna dive into this later today. thanks sambean.

sambean · 13 Dec 2005

Thanks Chaps..

Here's the next installment..

[url=http://freespace.virgin.net/cc.lai/waveshaper/Waveshaper_15.osm]

Waveshaper[/url]

New features: Osc Mode: With frequency and phase inputs. What you draw is the waveform, no bandlimiting so you'll get a fair bit of aliasing in the top end. Spline curves optional: so you can just use it as a normal waveshaper with hard edges. Optional guide lines. More property options.

Still to do presets..

🙂

Sam

Shifrin · 13 Dec 2005

Wow, this thing just gets better and better sam 😀

As always, many thanks!

Shif.

lalo · 13 Dec 2005

great great great 🙂 maybe i'll learn spline math 😍

fritzman · 13 Dec 2005

Boah Sam!

Thanx a lot, this is soooo cooool!!! 😍 😍 😍

All the best, FRitz

infuzion · 13 Dec 2005

crazy! With all this spline stuff, perhaps you should help code Inkscape 😉

sambean · 21 Feb 2006

Thanks for the support chaps!

Latest upgrade..

Very slight miscalculation in data array corrected

X/Y Quantize option & resolution properties, allows you to design more 'rigid' shapes

Slightly neater layout (sorry no comments yet!)

TODO: Rename wireless connections (SM.WS.blahdeeblah), to prevent clashes with other wireless links..

Allow parent GUI properties..

http://rapidshare.de/files/13761093/Wav ... 0.osm.html

Cheers

Sam

btw mods: can this be moved to 'sound' now, it started as a graphical thread but now is more relevant there..

sambean · 21 Feb 2006

A couple of last minute quick fixes just thought of.. 😉

Turn off insert/delete points: If you want to fix the number of points for an application this is now possible..

Points fixed to screen: You can no longer drag points off screen, they are still deleted though in the same way (drag outside mouse area then release..)

Quantization fix: There was a slight alignment issue with the last release

http://rapidshare.de/files/13762637/Wav ... 2.osm.html

Cheers

Sam

caco · 21 Feb 2006

😍 😍 😍

Sambean that is fantastic!!

Shifrin · 21 Feb 2006

Don't suppose the devs could host the file?! I cannot use Rapidshare, am always told my download session is invalid regardless of what I try 😕

Shif.

stefan · 21 Feb 2006

[old link]

Sambean: let me know if you want it removed or something.

sambean · 21 Feb 2006

Thanks chaps!

it's cool there.. Need to sort out new webspace soon.. 😀

infuzion · 21 Feb 2006

sambean wrote: Need to sort out new webspace soon.. 😀

Might be cheaper if we all pitch in & get a bulk-"webmaster" account somewhere, since I & others here need space.

Tom7777 · 22 Feb 2006

Thanks sambean, great update 🙂

Shifrin · 22 Feb 2006

stefan wrote: http://www.synthmaker.com/docs/uploads/2006/feb/21/Sambean_Waveshaper_22.osm

Cheers 😉

Shif.

lalo · 23 Feb 2006

Hi guys and sambean!

this is a very beautiful thing... 😍

would be very nice to have a tutorial to reverse-engineer this one.. seems very interesting both math-wise and sm-wise....and incredibly complex... 😮

would you like to do a tutorial sam....? ...inside there's some ASM too 😮 😮

MyCo · 23 Feb 2006

I guess I found a SM-Bug which only happens with this module. When I delete the Wave-Shaper, the spline thing stays on the front panel. You can move it like normal. I found to ways to go around that bug: 1. When I save my OSM and reload it. 2. When I cut & paste my whole VST-Module.

The strange is, it is only with this module.

sambean · 22 Mar 2006

lalo wrote: Hi guys and sambean!

this is a very beautiful thing... 😍

would be very nice to have a tutorial to reverse-engineer this one.. seems very interesting both math-wise and sm-wise....and incredibly complex... 😮

would you like to do a tutorial sam....? ...inside there's some ASM too 😮 😮

ermmmmm..

It's probably a good lesson to myself to keep better comments, I'm not sure myself whats going on in there 😉. I would actually like to go through it though, making it more efficient, and perhaps making a tutorial on the way, alas time is very limited at the mo'.. But saying that, I've managed to squeeze in a quick update:

The custom osc has been replaced with the wonderful new wavetable osc+writer, so the wave of the osc mode is now bandlimited..

[old link]

Thanks chaps,

Sam

stefan · 22 Mar 2006

Oooh, me likey 🙂

Shifrin · 23 Mar 2006

stefan wrote: Oooh, me likey 🙂

Moi aussi!

Shif.

global goon · 27 Mar 2006

this is rad!

i used it in my synth (.osm in the early adopters area) : hope that's ok!

sambean · 27 Mar 2006

Of course!

It's great seeing them being put to use..

edit: Just realised you done a bit of 'hacking' too, even better! I should perhaps make that a feature, fixing the end points..

andyg84 · 22 Apr 2006

Hey sambean, was wondering if you were going to make the waveshaper change with different presets, like go back to a default each time to be set up again? I'm using it in my amp sim for my uni project (which will be coming up soon for testing) and when I change the wave form it would just stay in the same postion as before.

sambean · 23 Apr 2006

Hey Andy..

This seems to be working now, the devs must have updated something.. Try this out:

http://magalov.myweb.hinet.net/waveshap ... per_27.osm Added: Preset saving (both number of points and point positions..)

The presets seem to be working. I've not tried it out in a host, so you'd better test it for robustness. It's advisable to thouroughly test this out in yours or more importantly your examiners host.. I'd hate there to be some bug that crops up on the final day!

Let me know how it runs..

Sam

andyg84 · 23 Apr 2006

Cheers thats great will let ya know how I get on.

AngularMomentum · 23 Apr 2006

Most excellent, this will mean I can finally use the Clas enhancer properly in my produce! 😉

andyg84 · 24 Apr 2006

Hey sambean, have been trying it out there seems to be a bug when i change my presets the blue wave doesn't change effecting the sound, the points do though

to get it to fit the point line you need to move 1 of the points a little this seems to change it. Do have any thoughts?

Andy

sambean · 24 Apr 2006

Forgot to mention that, thanks Andy..

In you're preset manager, you need to add a 'module wileless out' module, force it's type to 'int' (right click on the connector), rename the connector "SM.WS.PresetChange" and connect this to the 'current program index' of the preset manager..

This send a trigger into the spline designer to redraw the spline..

Also, in the 'spline designer' module connect the "SM.WS.PresetChange" wireless input to the 'LUp update' input of the selector. This should trigger the redraw if you're using the cpu friendly mode..

I'll update the schematic in a bit..

Cheers

Sam

angstrom · 24 Apr 2006

in Sam's preset manager you should have a wireless send called "SM.WS.PresetChange" connected to the Int output of the program index, that should trigger the redraw of those points. You'll notice its partner in the spline designer connected to the "Create B-spline array"

Other good thing : hooray that the presets work for this! 😀

Other bad thing : "drag out to delete a point" doesn't seem to work for me

its a wonderful thing though, I've been using a version of platinum ears compressor based on this (plus a little sideband addition) for a while, very handy to control compressor knees

sambean · 24 Apr 2006

Too slow!

Have you got 'insert/delete on/off' selected in the properties? You also have to drag a little outside the area to get a point to delete(to stop accidentally removing edge points..)

Thanks for the support!

Sam

angstrom · 24 Apr 2006

sambean wrote: Have you got 'insert/delete on/off' selected in the properties? You also have to drag a little outside the area to get a point to delete(to stop accidentally removing edge points..)

insert/delete is ticked and I tried dragging everywhere from 'a little' outside to 'a lot' 😉

but no luck, hmmm. 😕

this was on waveshaper27 BTW, so you can check against your own version easy enough. Has SM changed the way drag outside Marea is handled?

I guess if it works for you it is human error on this end. very common !

andyg84 · 24 Apr 2006

sambean wrote: Forgot to mention that, thanks Andy..

In you're preset manager, you need to add a 'module wileless out' module, force it's type to 'int' (right click on the connector), rename the connector "SM.WS.PresetChange" and connect this to the 'current program index' of the preset manager..

This send a trigger into the spline designer to redraw the spline..

Also, in the 'spline designer' module connect the "SM.WS.PresetChange" wireless input to the 'LUp update' input of the selector. This should trigger the redraw if you're using the cpu friendly mode..

I'll update the schematic in a bit..

Cheers

Sam

Cheers i'll give it a try 2moz when hopefully I have my own PC back woo! I might wait until your update too as I'm a wee bit unsure but I'm sure all will be well.

Cheers, Andy

sambean · 24 Apr 2006

Update to change preset on cpu friendly mode..

http://magalov.myweb.hinet.net/waveshap ... per_28.osm

Hmmm.. strange about the points not deleting, just downloaded the last version and seems to be working here.. Can you add points?

angstrom · 24 Apr 2006

I can add points OK to debug a little I put a MouseMove in the schematic and the values do track outside the V area, so your 'special' MouseArea with expanded borders is OK. It must be something specific to the way I am doing things. very odd.

Yet it should be simple, left click and drag on a red point - when the mouse is outside the V area the point should delete. I can't think where I am going wrong. Especially as we are both looking at the same OSM.

hmm, my capacity for human error must be grater than I thought!

sambean · 24 Apr 2006

Are you releasing the mouse outside the area? 😉

angstrom · 24 Apr 2006

heh, releasing the mouse you say...

*cough*

erm, yes, it all works fine now. Well at least I was on target with where the problem lay !

I must have another spline based app that requires merely to drag out, so my meat-matrix had imprinted that behaviour. 🙂

sambean · 24 Apr 2006

Adobe Audition per chance?

This has happened to me before too.. 😉

Tom7777 · 25 Apr 2006

The link for Waveshaper_28.osm was not working for me 🙁

sambean · 25 Apr 2006

Ropey server probs, keep trying!

Tom7777 · 25 Apr 2006

Yeah, i just got it though but it took a few clicks 🙂

sambean · 26 Apr 2006

Apologies folks!

Due to a slight oversight the waveshaper was providing uber-foldback distortion when on either of the waveshaping modes.. This has now been fixed..

http://magalov.myweb.hinet.net/waveshap ... per_29.osm

If you were quite partial to the sound it should be failrly straightforward to draw a similar distortion yourself.. 😉

Sam

andyg84 · 29 Apr 2006

I'm having the same trouble with new preset modlue not adjusting the spline wave line with the user dragging line. I tryed put the wireless out into the preset manager as you can see from the pic but it didn't seem to work. Could you help me?

Cheers Andy

oddson · 29 Apr 2006

... the wireless output primitive only transmits up one level and then downward through sister modules. It can't send a signal up multiple levels...

...apologies if that's old news to you.

andyg84 · 29 Apr 2006

Cheers I didn't realsie that. Do you have any ideas as I'm having the same trouble as before, when I first posted about this? Or would I just be best to stick with the other preset manager?

skOre · 29 Apr 2006

oddson wrote: ... the wireless output primitive only transmits up one level and then downward through sister modules. It can't send a signal up multiple levels...

To specify: he's talking about the wireless module transmit. The normal wireless output is even more restrictive and can only transmit downwards.

sambean · 30 Apr 2006

Wireless types need to match I->I, F->F etc etc, check the type of the reciever, it's probably a trigger, if it's so, you can right click on the transmitter you have highlighted and select trigger..

Sam