The 1-Bit Forum — new engine: Squeeker Plus

Re: new engine: Squeeker Plus

2016-08-30T10:31:38Z

Reverted the fix and applied another one, which seems to be working. Latest fix is on github now.

Re: new engine: Squeeker Plus

2016-08-24T15:29:52Z

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.

Re: new engine: Squeeker Plus

2016-08-24T08:46:52Z

Ok, found it. It's a bug in Squeeker Plus itself, rather than the converter.
What's happening is that in order to prevent ch4 from being left in a permanent "high" state after applying the slide effect (ie. counter hi byte + duty > 0xff, which would cause channel overload), the channel counter is reset on every tick. That's fine for higher notes, but it's deadly for bass notes.
I've applied a little temp fix for this, but I'm not entirely happy with that solution yet. I've pushed the changes to github for now, though.

Btw, something I forgot to mention regarding detune - contrary to standard XM behaviour, it is only effective in conjunction with a note trigger, and will live till the end of a note rather than the end of a row.

Re: new engine: Squeeker Plus

2016-08-23T20:34:51Z

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?

Re: new engine: Squeeker Plus

2016-08-23T18:47:29Z

Seems I've introduced another bug with the latest changes. Under some circumstances ch4 appears to not generate the correct note frequencies. It only happens sometimes, haven't quite figured out why. Let me know if you encounter this bug as well.

Re: new engine: Squeeker Plus

2016-08-22T22:14:37Z

thanks again, you're the best!

Re: new engine: Squeeker Plus

2016-08-22T17:55:13Z

I agree, the other way around would be more logical. But it would also be much more complicated to detect in the converter, so for the time being I can't be arsed. I've (hopefully) fixed the detune though.

Re: new engine: Squeeker Plus

2016-08-22T15:10:33Z

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.

Re: new engine: Squeeker Plus

2016-08-22T09:37:04Z

Thanks mate. I've made a new commit, hopefully this should fix the issue. There might be more horrors lurking in the abyss of xmkit though.

Re: new engine: Squeeker Plus

2016-08-22T05:33:08Z

I've put a sample file on the github tracker

Re: new engine: Squeeker Plus

2016-08-21T21:06:33Z

You're right, envelopes take precedence over channel volume, not the other way around. Sorry 'bout that...

For the rest, it sounds like some good ol' bugs... I'll look into it, perhaps tomorrow if I can find some time.

Re: new engine: Squeeker Plus

2016-08-21T20:29:54Z

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).

Re: new engine: Squeeker Plus

2016-08-19T15:06:20Z

Cheers Channel volume overrides the envelope. Multi-point envelopes are taken into account, though there's a chance they aren't parsed correctly, so check the asm in case something sounds fishy.

Re: new engine: Squeeker Plus

2016-08-19T13:08:44Z

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)

Re: new engine: Squeeker Plus

2016-08-19T10:18:18Z

Whoa, dafuq did that happen? Yeah, the xmkit version from zbmod is not compatible with xm2squeekerplus. At the moment xmkit is still a rather dysfunctional mess, and a prime example of a bad programmer interface. I though "Oh, I'll quickly make a library so I don't have to rewrite the whole XM conversion code every time" but I greatly underestimated the amount of work involved, and lack of experience didn't help either.

Anyway, I've added the required files to the repo. Thanks for reporting!