Alright, got it working. Quick'n'dirty test doodle attached.
The SDL number keys seem a bit wonky, sometimes returning the "last entry" instead of the actual number of the key pressed. Other than that I couldn't spot any issues on my quick try-out.
51 2023-11-10 23:16:01
Re: EBT - ESPboy tracker (16 replies, posted in Other Platforms)
52 2023-11-10 21:02:23
Re: EBT - ESPboy tracker (16 replies, posted in Other Platforms)
Can confirm that the build works. However I can't run it, it's complaining about a missing data/ebt.cfg.
53 2023-11-09 22:29:07
Re: EBT - ESPboy tracker (16 replies, posted in Other Platforms)
Very pleasant sound, indeed. Btw, when you have things ready for linux, I can help with testing the build, at least.
54 2023-10-23 23:05:19
Re: EBT - ESPboy tracker (16 replies, posted in Other Platforms)
Damn, it looks fantastic, very polished UI design in such a small space. Some demo songs would be great, unfortunately I don't have time to dive into this at the moment.
55 2023-10-23 22:47:22
Re: next gen engine ideas (135 replies, posted in Sinclair)
Found a new el-cheapo PRNG/noise generator. It's a bit slower than the usual add hl,de; rlc h variations, but needs only 1 register pair instead of 2. It also sounds a bit different.
ld a,MAGIC_NUM
add a,e
rrca
xor d
ld e,a
inc dFor MAGIC_NUM, most values do pretty much the same, except some that are straight metallic beeps and a few that sound more rumbly.
test.tap plays through all possible values.
The main downside is that we can't smc-hotswap this with regular tone channel code. What could work though is to hotswap it on an 8-bit divider and use a separate 8-bit pre-scale on this. Pre-scale would pitch the noise as well. Unfortunately the perceived pitch of the noise is quite a bit lower than using add hl,de; rlc h. Not sure if it's actually much of an improvement over just lazily reading from ROM:
ld a,(de)
inc de56 2023-10-07 08:22:37
Re: Tutorial: How to Write a 1-Bit Music Routine (56 replies, posted in General Discussion)
Hi Krzysztof,
Not sure what Chris Walsh means, I don't see any errors in the first routine.
Good point about RAM contention from Simon N Goodwin though. I'll add a little note on that. IO contention is mentioned in Part 5, I don't think readers need to be overly concerned about it before that point.
Anyway, thanks for passing on the feedback.
57 2023-10-04 15:36:25
Re: Commodore PET music (5 replies, posted in General Discussion)
I thought that hardware support was supposed to be added/extended in 0.6, but it seems indeed that hasn't happened yet. I trust they'll get around to it at some point, though.
58 2023-10-04 15:33:59
Re: Tutorial: How to Write a 1-Bit Music Routine (56 replies, posted in General Discussion)
Excellent, thanks a lot. I originally had the tutorial in an .org file, but gave up on it somewhere down the line. This'll be a good opportunity to get things in order on my side, hehe.
59 2023-10-02 19:22:44
Re: Commodore PET music (5 replies, posted in General Discussion)
Never mind the low notes, seems there's variable duty as well. I suppose it's not interrupt-driven, then? Anyway, I have my doubts about this. I mean for PET emulator support can't really be trusted. If they can get it to work on hw then that's awesome, though.
60 2023-10-02 19:13:48
Re: Tutorial: How to Write a 1-Bit Music Routine (56 replies, posted in General Discussion)
Thanks, looks great! Do you happen to have *tex sources for this? I'm updating the tutorial every now and then, and I don't want to burden you with updating the pdf every time that happens.
61 2023-09-25 17:45:21
Re: 1tracker v0.47 (164 replies, posted in Sinclair)
Musical talent is overrated 
62 2023-09-25 17:43:07
Re: Loading music sound (3 replies, posted in Sinclair)
Yep, I used that editor back in the day as well. Beware that it leaks memory like there's no tomorrow, so you probably want to run it in a virtual machine of sorts.
Here's a recent loader music thingy: https://spectrumcomputing.co.uk/forums/ … hp?t=10085
63 2023-09-01 13:25:09
Re: 1tracker v0.47 (164 replies, posted in Sinclair)
Can confirm. Prints
Warning: trying to read song data row -1145383 column 4repeatedly with increasingly large negative offsets, effectively freezing the program.
64 2023-08-09 19:41:20
Re: Tutorial: How to Write a 1-Bit Music Routine (56 replies, posted in General Discussion)
D'oh! I was looking at a different part of the tutorial. Thanks for your patience, I've corrected the error now.
65 2023-08-08 10:55:25
Re: Tutorial: How to Write a 1-Bit Music Routine (56 replies, posted in General Discussion)
Thanks for spotting and reporting these! I've corrected No. 2 and 3.
I'm inclined to leave the part on Pulse Interleaving as is. You are of course correct in that moving the ld a,ixh/l up would save 8t here, but I'm concerned that it might make it harder to see the connection with the pseudo-code on the left. In the end a proper player should not be written like this anyway, because you'd still end up with an all-too-large, 10t timing difference between the skip-taken and skip-not-taken paths.
66 2023-07-29 19:14:01
Re: Star Tip 2 (3 replies, posted in Sinclair)
I tried using it, and it soundly defeated me. As in, I don't understand how to make a track in it without going insane.
I don't even want to imagine what the 5ch player is going to be like, as that actually consists of the 3ch one plus some extra stuff, if I understood correctly.
67 2023-07-29 19:09:37
Re: 1tracker v0.47 (164 replies, posted in Sinclair)
Thanks for the hard work, Shiru.
To compile with GCC/Clang, two small changes are needed. makefile:103 should read
playplayer/playplayer.o: playlayer/playlayer.cppand playplayer/playplayer.h must #include <cstddef> to make size_t available.
68 2023-07-03 10:00:16
Re: Tim Follin's source code archive (4 replies, posted in Sinclair)
Unfortunately I can't merge FrankT's post into this thread, so as a compromise I moved this into the Sinclair subforum (not ideal since there are non-Speccy drivers in the source dump as well) and closed the other thread. Sorry for the inconvenience.
Anyway, looky over here: https://spectrumcomputing.co.uk/forums/ … p;start=10
Thanks for your hard work polishing these up, FrankT! Alas, if the notes at https://github.com/ZoomTen/chronos-zxbeeper are correct, I don't have very high hopes for the usability of the 5ch player...
69 2023-07-03 09:51:58
Re: Tim Follin's source disks recovered (1 replies, posted in Sinclair)
Sorry for the late reply. Shiru had already posted this, so let's continue the discussion there:
http://randomflux.info/1bit/viewtopic.php?id=332
70 2023-05-13 19:07:38
Re: Tim Follin's source code archive (4 replies, posted in Sinclair)
Excellent! Only had a quick look so far. This looks promising:
https://github.com/breakintoprogram/arc … A/FIVE.SRC
71 2023-04-25 08:39:54
Re: Ear Shaver - new 1-bit music album (10 replies, posted in Sinclair)
Amazing release! Great compositions and lovely sound all around. Love how, in a way, it sounds very "classical beeper", while at the same time utilizing a massive array of state-of-the-art tech.
72 2023-03-14 13:17:00
Re: Matel Aquarius computer (7 replies, posted in Other Platforms)
Ha, too quick is never a problem, just sprinkle on a few nops here and there 
How is that even possible though? The Aquarius runs at about the same speed as a Speccy, doesn't it?
73 2023-03-05 12:13:12
Re: A Timeline of 1-Bit Music (1949-1979) (10 replies, posted in General Discussion)
Ah, that's a fascinating rabbit hole. Was not aware of this composer at all. Great finds, thanks a lot. And yup, GE-115 is a mainframe for sure: https://archive.org/details/TNM_General … e/mode/2up One of the last ones GE made, if I'm not mistaken.
74 2023-02-24 21:01:51
Re: Vic-20 1-bit music (4 replies, posted in Other Platforms)
Yeah, that's exactly what I mean. There are some things going on with VIC sound which just leave me scratching my head. In any case, considering the strong low-pass filtering, I guess anything that involves fast switching might be out of the question. Haven't studied Aleksi Eeben's code, so I don't know how it works, but my guess would be that it's mainly writing to the global volume reg?
75 2023-02-09 14:19:31
Re: Matel Aquarius computer (7 replies, posted in Other Platforms)
Thanks for the detective work, mate. Do you have a .CAQ format description somewhere? I'll need that if I ever add these to Bintracker.