Just a small issue, there is a broken link in the default README.rst:

This: http://www.skylyrac.net/gbt-player-usage.html
Should be: http://www.skylyrac.net/2015-04-08-gbt-player-usage.html

A Game Boy tracker, called Little Sound DJ (LSDj), supports pitch bend effect as Pxx.
As this effect is quite useful for the song, there are lots of LSDj songs that use this. example song

It would be nice if s3m2gbt supports Exx, Fxx and Gxx effects.

Hello, great tool!

is possible to create a vgm2gbt converter? or use a GBS file?

http://www.smspower.org/Music/VGMFileFormat?from=Development.VGMFormat

In that way music created with https://www.littlesounddj.com/ could be exported to vgm in an emulator and later used in games.

Thanks :)

This song sounds worse with 4.0.0 than with 3.1.0.

For example, the second pattern almost can't be heard with the new release.

Test ROMS with both GBT Player versions.

pattern and step variables don't exist here:

Previously, would stop the noise channel when using a pan effect on ch4, tested and fixed with gbstudio.

Fix as

gbt_ch4_pan$:
	and	a,#0x88
	ld	(gbt_pan+3),a
	ld	a,#1
	ret ; ret 1

Is it possible that you can include an executable version of mod2gbt for linux/unix/osx? It would make compiling much easier.

Love the work you've done on GBT player.

Hello, i'm having some issues when my track has continuous notes. When gbt_pause is called it pauses the song but keep continuous notes going in a lesser volume. I'm using RGBDS.

Am i missing something?

Thanks!

I tried combined_maxmod example for my song, but there's a slight desync (slight off?) with it.

Here's the unsplit s3m file if you want to check it out.
https://cdn.discordapp.com/attachments/831589248239009832/1076882958721490954/unsplit_creepy_castle_back_door.s3m
(It's discord attachment link because github doesn't support s3m format)

For example, the lead melody (channel 6)
is slightly late for the 0:31 ~ 0:32 on the gba playback video,
but it matches 0:09 ~ 0:10 on the openmpt playback video.

GBA playback

OpenMPT playback (trimmed for the noticeable part, matches from 0:22 on the video above)

Issue

Ch3 vibrato sounds OK in mGBA, but it's broken on hardware.
The waveform is a simple Triangle, which looks like this:

Source files

basic - ch3 vibrato.s3m
basic - ch3 vibrato.gba

Playback

mGBA Playback (OK)

Hardware Playback (Broken)

WARNING!! HEAVILY BROKEN NOISE SOUND!!
https://github.com/AntonioND/gbt-player/assets/34793045/daed84fd-3deb-4ee5-a8ee-72b64f185cbe

I tried this on 3 different GBAs, but they all have this broken noises.

It would be nice to have a proper example of playing sound effects with gbt-player.

From gbadev Discord server:

you can do something like

    disable channel 4 from the player
    play sound effect
    wait until it's done
    enable channel 4

Could you replace exit calls in s3m2gbt with exceptions or something else that doesn't abort the Python interpreter?