Add music and SFX to your BEX game with the XGM driver :)

[theelf]

Question, is possible to use different rates? other than 14khz for PCM

14khz is too much for some samples, and is just a waste of rom


Thanks!

May 12, 2015 16:24:00 GMT -5 @theloon said:

Just wanted to say THANK YOU to Stef for this. I just sucessfuly compiled your test.bex. I tried a different .xgc files. I also tried converting a MIDI to VGM to XGC and it worked! Next I'll try and see how sound effects work. This is great!!

UPDATE: Used nineko's midi2vgm

Hi!

Any advice how to open a midi file in midi2vgm? ?¿ I dont see any option, meu or anything ? jaja


Thanks

[Deleted]

The .MID files must be in the same folder as MIDI2VGM. Remember to push the [ Force Note off ] button. Windows 10 doesn't have the right libraries to run it either. Get them at:
www.microsoft.com/en-us/download/details.aspx?id=10019

[theelf]

Aug 26, 2015 16:42:57 GMT -5 @theloon said:

The .MID files must be in the same folder as MIDI2VGM. Remember to push the [ Force Note off ] button. Windows 10 doesn't have the right libraries to run it either. Get them at:
www.microsoft.com/en-us/download/details.aspx?id=10019

Hi thanks! finally I solve the problem

I use XP x64, and there is a incompatibility with some dll, thats why i push the button "convert" and nothing happen.. jaja


Thanks for your help

[Stef]

theelf said:

Question, is possible to use different rates? other than 14khz for PCM
14khz is too much for some samples, and is just a waste of rom


Thanks!

Unfortunately no, that s a limitation of the XGM driver. Samples must be at 14Khz; i know it eats more rom space but i really wanted nice PM quality (8Khz is not enough for some instrument)

[landeel]

Thank you so much for this.
I have just one question:
How can I make the music play again once it ends (loop)?
Thank you!

[Deleted]

Sept 16, 2015 13:12:42 GMT -5 landeel said:

Thank you so much for this.
I have just one question:
How can I make the music play again once it ends (loop)?
Thank you!

You would do that in the tracker, ie, set a loop point.

[landeel]

Hm, I'm converting midi tracks I wrote to vgm, and then to xgc.
I presume I should add a loop point when it's in the vgm format, as midi doesn't have it.
Can you recommend a tracker program for that?
Thanks.

[Deleted]

Elusive has the definitive answer. For me, I have to half-ass it because:
A. I don't know tracking software enough to create loops
B. Sometimes the music files hard lock at some point on a real genesis

For these reasons when I start playing a song I set a songlength counter that counts down until I should start playing the song again:

if songlength > 0 then songlength = songlength - 1 else gosub play_ingamemusic

play_ingamemusic:
songlength = 5500
   asm    
   lea     XGMsong,a1      ; put address of song to play in a1
   end asm
   xgm_startPlayMusic
return

[Deleted]

If you use vgm music maker, right click on the pattern on top and select "loop"

[landeel]

I have tried the vgm music maker, but it won't open or import vgm files, only vge.
I'm using theloon's idea for now.

[Sg]

hey stef, can we use the 6 pad buttons + start and the 4 directions with your xgm driver?
because sound work very bad when i use it

[Deleted]

Sept 27, 2015 11:54:44 GMT -5 Sg said:

hey stef, can we use the 6 pad buttons + start and the 4 directions with your xgm driver?
because sound work very bad when i use it

For the VGM music track, with what you're probably wanting to do - nope. (I'm assuming you want to enable and disable the FM channels based on button press?).

If you want to do it with the PCM functionality, you can, but you only have 4 samples available at a single time, so you'd be limited to 4 buttons.

The 6 button controller is compatible as it's outside of the drivers scope, but you'd probably need to write a custom driver for what you're wanting to do. Again, assuming the above assumptions

[Sg]

Sept 28, 2015 15:56:50 GMT -5 @elusive said:

Sept 27, 2015 11:54:44 GMT -5 Sg said:

I want to make one instrument ( pcm/raw format) for each button based on  button press

[Deleted]

Sept 29, 2015 5:05:21 GMT -5 Sg said:

Sept 28, 2015 15:56:50 GMT -5 @elusive said:

I want to make one instrument ( pcm/raw format) for each button based on  button press

You can do that, but only with 4 PCM samples as that's all the driver supports (any more and you'd lose quality), so you'd be able to use only 4 buttons.

[nathan999]

Hey, Stef. My buddy Leander has reached me about a bug he has found in your PCM player, in the function

declare asm sub xgm_startPlayMusic()

There's a

move.l  NULLpcm,d2

in the first loop which should read

move.l  #NULLpcm,d2

Otherwise there's problems - depending on where the function finally falls in the compiled binary, you get a continuous background noise as the pointer is not pointing where it should.