AmigaKlang is out

[Antiriad_UK]

Thanks for the explanation - I was getting there but that helps. I’ve just got phx’s replayer plugged into my framework and that’s playing normal mods fine. I found a c program he also did to split the mods into pattern and sample data and that works fine too. Now time to add the amigaklang part.

I probably won’t even use it after all this, but looks very cool and it’s all fun in lockdown

[Antiriad_UK]

Hi, I've got the code working with one of the test modules. But the precalc code seems to overwrite memory. Readme says call precalc like this:

It needs following adresses in registers:
a0: startaddress where to render the samples to chipmem .
a1: startaddress of a temporary render buffer (32768 byte)
a2: startaddress of external samples (if used. Include Ismp.raw)
a4: address where the synth puts the rendering progress (e.g. for a progressbar)

In the test module Ismp.raw was 0 bytes so I've set a2 to 0 (no idea if that's needed). For a4 I wasn't sure if that could be zero so pointed that to a valid memory location.

Problem seems to be the temporary area in a1. At 32768 bytes it was getting overrun. If I increased the size to double it seems to be ok. Is there a chance that this area needs to be 32768 words and not bytes?

Cheers

[virgill]

wooho. Sorry, you´re right. You need twice the bytes for the temp buffer. Will update the readme

[Antiriad_UK]

For any coder wanting to use this I've just knocked up a little readme file describing how to use the phx replayer with AmigaKlang GUI to precalc samples. Anything to make the initial use in intros a little easier

I've also extended phx's code to split the module into song data and samples and added some output and a way to export the sample size similar to what Dan suggests.

>SplitMod.exe optimalworkflow.mod
>
>Written song data: optimalworkflow.mod.trk (30780 bytes).
>Written sample data: optimalworkflow.mod.smp (168198 bytes).
>Written assembler include for SPLITMOD_SMP_SIZE: optimalworkflow.mod.i.

Contents of mod.i:

SPLITMOD_SONG_SIZE = 30780
SPLITMOD_SMP_SIZE = 168198

I've uploaded the readme and splitmod.exe to my website:

Virgill, if anything in there is useful to you, you are welcome to hack it and include it with your main archive.

http://www.autoitscript.com/files/am...lang_extra.zip

Enjoy!

[daxb]

If you write sample data direct to a Protracker mod file, does it mean that by this method the limit of loading samples > 64 kb can be bypassed? That would be really nice, because to use samples > 64 kb and < 128 kb in Protracker you need to copy/paste samples in its sample editor.
Especially for synth sounds I think up to 128 kb samples could be interesting.

[virgill]

Antiriad: Fantastic <3

daxb: I´m sorry to disappoint, but no

[falken]

Works fine! Thank you for that awesome tool....

[h0ffman]

Originally Posted by DanScott

We had issues with P61 player, as the converter also seems to do some stuff to the samples... meaning that the resulting module sample offsets were not correct for the aklang sample renderer.

Correct, P61 converter removes unused sample slots and remaps all the samples. A dirty hack around this is to include a pattern in the song data which triggers every sample, then they don't move because the converter thinks everything is used.

In terms of mapping the samples to P61, the way I did it was to add a hook near the end of the P61_Init which jumps into the sample rendering part. As each sample is rendered you can patch the pointers into the table P61_Samples.

At some point i'll look to rebuild the P61 converter into a modern language. Having to fire up an emu just to convert song data is a royal PITA.

[abbub]

Nice! Looks very cool!

[virgill]

Here´s a little update:
https://www.pouet.net/prod.php?which=85351

improvements:
- less crashes
- external samples are stored in delta format to please the shrinkler packer
- render and play via functions keys
- numerical input for parameters.
- fast sample display
- added the mod splitter tool by Antiriad (thx mate)

[Antiriad_UK]

Virgill, if you see this, PM me your email address. I have a buggy patch/module that won't play back properly one of the samples. Cheers.

[abbub]

This looks very cool!

[saimon69]

Anyone did a more comprehensible tutorial on how to create instruments? I got the basics but AK assume i know what am doing on creating instruments, and sometimes i don't;

[saimon69]

By the way how do you set the loop in the 0.952?
[edit]never mind, i found it[/edit]

[virgill]

@saimon69: I would be glad to help you. PM

[virgill]

Small update:
AmigaKlang V0.953

improvements:
- new player (Frank Wille) that supports CIA timing (thx Antiriad)
- loading bar while rendering on the Amiga side (thx again Antiriad)
- new offset parameter for the clone sample node.
- little orange markers beneath "wrong" wired nodes to keep track of errors.
- elimination of some rendering bugs on the amiga side (thx Tecon)

[Photon]

Originally Posted by Steril707

Amiga based softsynth?

It runs on PC and requires tracking the music with a PC modtracker. When music is finished, the module and the Amiga code to generate the samples are exported.

Originally Posted by virgill

you can use whatever mod player you want. The exported .bin just renders the synthesized samples to a given memory location.

Very good and I support the initiative. I hear some aliasing distortion in the Youtube demo, can a Nyquist band attenuation filter or some form of simple amp emu be applied to lessen this within the power of 680x0?

Originally Posted by DanScott

We had issues with P61 player

The P61 format was left unfinished in the mid 1990s. It is to be used for notedata compression - sample compression and separate sample linking should be considered experimental. There are a few more things that are only partially supported, mostly to do with the notedata compression. 9xx effects await testing in co-op with a chip musician. You can test what is supported in the player by playing a track compatible with PT2.3D in the converter (edit: and have the original musician listen to it to verify - it may sound fine to you, but he will hear every nuance).

[virgill]

V0.953.1 is out. Grab it here:

https://www.pouet.net/prod.php?which=85351

Some new features from Antiriad:
- Player source is optimized and is about 1k smaller now
- Render while playing can be enabled (good for competitions with precalc time limits)
- A cool copper vu-meter is shown while playing

[Silverstreak]

Looking forward to playing with this, the results sound super nice. I always thought soft-synths were a bit under developed for the Amiga, I still love Sonix for that.

[virgill]

more evidence:
https://www.pouet.net/prod.php?which=88548