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Thanks for sharing that tool!

Softsynths on the Apple 2 actually predate softsynths on both Spectrum and IBM PC! Lo and behold, the mighty Electric Duet:
https://arachnoid.com/electric_duet/

Unfortunately not: https://www.pouet.net/prod.php?which=87465 https://github.com/AYCEdemo/pettan
You're definitely the first to make a proper native tracker for the thing though!

For curiosity, I've dumped my old engines here: http://irrlichtproject.de/downloads/a2snd.zip No guarantees whatsoever, I haven't looked at this code for years and I have no memories of how functional/complete it actually is.

Interesting, sounds like the engine uses a combination of PCM samples and synth.

That reminds me, I actually have a couple of unreleased Apple II engines laying around! Never released them because I could never work out a way of building disk images that don't involve adding some proprietary blobs, but I think things have been moving in that domain in recent years. So I should get those out some day... Nothing fancy, just boring standard stuff, though.

Ahh, then I'd have to reverse-engineer that... I'll see if I can whip up some example tune, at least. Though it shouldn't be too difficult.

A few pointers:
- The first pair of channels can be combined into a Phaser channel. For this, set mix mode (M) to 2, and use for example the same note on both channels, applying a few cents of detune (d) on one of them. If M is set to 1, then these channels work like in Squat&friends.
- The last 3 channels are pin pulse with volume control, with accumulative pin pulse synthesis like in OctodeXL. Use the volume command (Vo) liberally on these. Generally you want to keep volumes in the low single digits, to prevent overloading.
- On channels 1+2, the duty setting (Du) is actually semi-independent of phasing, so if you set the duty to a low single digit you can fake some volume control on the phaser, for example.

Another question that one could ask here is: What happens if you make the vibrato run at a rate that is faster or (especially) a multiple of the base tone frequency? In theory that should give us some sort of 1-bit FM sound, though in practise I never got it to work very well.

Perhaps one could get away without calculating the full vibrato in this case, since it only matters around the points where the output flips. Say your wave is

--------________--------________

then I'd expect the effective result of applying a hyper-fast vibrato would be something like

------_-_-____-_-_----_-_-______

Excellent release. Amazing to hear the Tuftmeister™ style applied to such a wide range of genres.

Cheers MovieMovies1, it was fun working with you on this
I think the .exe you posted dynamically links msvcrt.dll, which may not be present on systems without Visual Studio installed. I've attached a stand-alone version below that shouldn't require any additional .dlls.

Whoops, actually paying attention while compiling may help lol

Edit: Added the upgraded E5x support, as discussed. Pls let me know if it works as intended.

Multimatograf will have a beeper compo again this year.
https://events.retroscene.org/mf2025
Deadline is May 2nd, 12:00 local time.

I think I could hack something like it into the converter. What exactly should those 15 steps in E5x represent, though? E58 is no detune of course and then I guess E50 should represent -¼ tone and E5F should represent +¼ tone. I don't like the idea of having a lookup for this, so I'd prefer to have a formula in the form of

freq = freq_base + (E5x_param - 8) * something_something

Hi, after playing around with Archie in 1tracker a bit, I decided to modify the engine plugin a little to better suit my needs. Sharing the modded engine here in case someone else will find it useful.

The changes are:

- Applies half as much detune. x*2 detunes too much on an engine with 12-bit dividers, imo.
- Phase offsets are now log(x)-based. This is useful because it mirrors the relation between phase offset and volume, ie. we're mostly interested in values close to phase inversion.

My apologies Shiru, I'm super pressed on time rn so haven't had the chance to test these. Just judging from Tufty's test track (also heard it without EQ) though, QC24 at least sounds amazing. I think absolutely nailed the volume balance between tones and drums this time.

Team Qchan represent! Also still one of my favourite engines. Those envelopes are magic.
Also classic Tufty style at it's finest.