new engine: Squeeker Plus

it seems there is a required xmkit.h file which is missing in the archive... (I need to recompile xm2squeekerplus)

ok, I found it there, in the zbmod dir: https://github.com/utz82/ZX-Spectrum-1- … od/xmkit.h

edit: can't compile it:

I've cloned the whole github repo, i could compile zbmod but for squeekerplus, after copying xmlib.cpp and xmlib.h I got this:

g++ -c -Wall -Os -s -std=c++11 -o xmkit.o xmkit.cpp 
g++ -c -Wall -Os -s -std=c++11 -o xm2squeekerplus.o xm2squeekerplus.cpp 
xm2squeekerplus.cpp: In function ‘int main(int, char**)’:
xm2squeekerplus.cpp:103:79: error: ‘class xmod’ has no member named ‘instrVolEnvUsed’
          && (xm.ptnVolumes[ptn][0][row] == xm.ptnVolumes[ptn][0][row-1] || xm.instrVolEnvUsed[xm.ptnInstruments[ptn][0][row]]) && !xm.ptnTriggers[ptn][0][row])
/.../
xm2squeekerplus.cpp:219:34: error: ‘class xmod’ has no member named ‘instrVolEnvPoints’
      unsigned char startval = xm.instrVolEnvPoints[i][j*4+2];
                                  ^
make: *** [xm2squeekerplus.o] Erreur 1

and a bunch of other errors

g++ --version
g++ (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4

I'll try the windows binary meanwhile.

(edit2) : ok, it was commented in the xmlib code, probably you've extended this in the version missing, I've uncommented after that: //TODO: hide this

and it compiles now

(edit3):

but the converter doesn't work (even with demo song):

but with wine I can use the .exe so it's ok for me at the moment...

thanks, it's working now.
I've compared the two xmkit versions, there aren't so many differences, so it's not that bad. Maybe one day you'll manage to make a library suitable for every engine, but for the moment it's quite an achievement. Well done.

I've played with the squeeker plus, the duty change with volume or envelope is very clever, it's working fine, except it doesn't really sound similar with milkytracker, but I'm used to imagine clean sounds with some saturation in them Sometimes the saturation is quite too much though...

I guess the volume channel and the envelope are cumulative?

It seems possible to make several points in the envelope, is it taken into account by the engine? With two points, if I change the middle one, it will change the sound but I can't really tell if it's an average or if it modulates the effect (I think the former).

For the instrument envelope, we mustn't forget to enable ("on") it in the settings (it's just below the "add" button)

I'm working more on my Squeeker plus tune. Very enjoyable to compose with this...

I've noticed on the slide kick channel, if I enter some volume change, it doesn't change the duty cycle. But it works if I create a new instrument for that.
Also it looks like for tone instruments with volume envelope, it's the envelope which takes precedence over the channel volume (from my quick tests)

Hmm, strange I've made further tests and now it seems for example for instrument 3 (tone), I can't even change the duty by modifying the volume channel. I'm almost sure it worked before so I don't understand (i'm using this from another computer, maybe my settings? I'll investigate further).

I've put a sample file on the github tracker

Thank you for the quick fix. Now it's much easier to adjust the saturation to a more bearable level.
For the "Envelope overrides the Channel volume" or the reverse, what do you think would be better? After a bit working with this, I've got the feeling the reverse (like you said earlier) would be more logical but maybe it's just me.

And sorry to bother you also with this (I forgot in my previous post), but it seems the detune is not working.

thanks again, you're the best!

I haven't experience anything like this. Is it really out of frequency or is it almost not noticable?
Do you have a sample tune with this behavior?

I've applied the fix but I'm afraid it breaks some parts of my song. Maybe I was using a bug but I doubt it, because the sound is cut for some high notes, but not always (on other channels than ch4). I'll send you an email with some examples, before and after your modifications.