[SEGA MD / GEN] GenMDM SEGA Genesis / Mega Drive MIDI Interface (Page 67 of 87)

ok 3-10 days will hopefully do Thanks seb.. have a nice day

Seb I have a question, (while I am waiting for the genmdm to be delivered this morning )
Reading your latest blog entries, witch are awesome, If I understand right, the sample data are actually into the teensy GENMDM firmware source code inside an array like:
prog_char array_name[length] PROGMEM = {
// sample data
};
I wonder if it is possible (if you release the original sample datas an array(s) name(s)) to replace the array(s) with our own data, patching the source code with an hex editor..? of course it could be a workaround until you release natively this function (if I remember right, you already have something like that planned )
Cheers

No, take your time to make a fine loader
Yes! I got my GENMDM, hook it up since 5min works fine
Doin' a quick test on my PAL MD1, I will have to inverse some of the FMDRIVE controls for the controller version (and rescale some midi data too at some places)
( ex: FMD AR CC 0 ==1F versus GENMDM AR CC 0 == 00)
Everything seems fine for the first 5 minutes here, except this:
Secondary Decay Rates have no effect here, it seems to be stuck to a value but none of CC 51,52,53 or 54 have any effect.

//EDIT: Secondary decay rate for OP1 (CC 51) works fine but only go from 0x00 to 0x0F instead of 0x00 to 0x1F
I saw that you notify 16 data range for D2R maybe there is something here.. as it should be 32 data range like D1R.
register 70H+ for D2R has D4, D3, D2, D1 and D0.
So far D2R does nothing for me for OP4,3 and 2.

Can somebody confirm that it has an effect? maybe it is just me but I do not see something wrong in my setup.
For example setting Algo 7 just pure sine on OP4 CH1 AR 1F D1R 0 SL 0 RR 0F and D2R (CC54) (changing D2R here should go to infinite sustain at 0 to a short blip at 1F) but sending anything from CC value 00 to CC value 127 do not change anything to D2R.
"When First decay rate and secondary amp level are not set ==0x00 the envelope generator directly switch to D2R after the Attack phase"
seb can you confirm this test?

I think I should report this as it might be just me or something that could be corrected
looking forward for an answer ^^

Also something very interesting here with the stereo control.
(CC77) go from mute,left,right to center. staying in the mute position does not output silence but only the distorted part at low level with TL having minor effect until near max attenuation witch is SUPER INTERESTING!
seb can you please also confirm to me that mute position on GENMDM is B4h+ D7=0 and D6=0
If it is the case I might try to record something in mute, then in center position and then phase reverse the first and add...in theory we should have a little more only the clean signal... assuming the distortion is non linear it may not change anything in the end

Last edited by Aly James (May 18, 2013 10:29 pm)

Ah yes - the secondary decay rate is my mistake, I have fixed it now and it will be included with genmdm 103.

This will also be updated in the editors and in the docs.

Thanks for pointing this out! My apologies.

Oh, I've already fixed the issue - I was shifting left by one too many bits, that's all! Just a typo

Yes, I know the bug you mean and actually I don't think of it as a bug at all but rather a feature to be used creatively... which I have done with some of my releases.

One man's trash is another man's treasure etc.

Xactly.

I love your releases by the way, that experimental vibe is very deep
I am looking forward to make a release with all these new chip vibes...It is kind of refreshing to include this new side of music I haven't explored yet.
when I will find some TIME...

This morning free time:
Tribute to Yuzo Koshiro on FMDrive
http://soundcloud.com/alyjameslab/ninja … mdrive-vst

Once you have the basics for the CSM working, I will talk with you on a possible way to implement a wav to csm speech...
that your coding knowledge should handle
// Wav vocal sample >> FFT analyse >> Formant Freqs >> MIDI
4 main formants in the speech>> FRQ to operators Fnumber >> midi pitch or notes
4 levels for the power of spectrum >> Db to operators TL >> midi volume or TL(cc)

These should output 4 midi files for OP4,3,2 and 1

Last edited by Aly James (May 20, 2013 12:01 pm)