Search found 74 matches

by Aly James
Mon Mar 31, 2014 1:20 pm
Forum: Sound
Topic: FMDrive VST / YM2612 + Extended Vsti (Some News!)
Replies: 35
Views: 40750

The hardware is running on a modified Littlescale Open Source Teensy code for the SN76489. (which is not the GenMDM nor the SMS device one) I have modified how the voices are handled to avoid the cutting of the notes when you press a new key without releasing the previous and some other tweaks here ...
by Aly James
Fri Mar 28, 2014 6:50 pm
Forum: Tools
Topic: VGM Juice
Replies: 3
Views: 3548

Very nice to have automatic PCM trimming and average sample rate :)
it can't save some extra time!
Thanks :)
by Aly James
Wed Mar 19, 2014 5:41 am
Forum: Sound
Topic: FMDrive VST / YM2612 + Extended Vsti (Some News!)
Replies: 35
Views: 40750

I forgot to drop some news in here... So here we go! SOUNDCLOUD CHANNEL: https://soundcloud.com/alyjameslab/sets/fmdrive-vsti FMDrive VST (YM2612) and SPSG (SN76489) VST ... VGM conversion with registers automation support! available very soon :) I am currently debugging the tool with Valley Bell an...
by Aly James
Sat Mar 08, 2014 9:23 pm
Forum: Sound
Topic: Extreme High Quality Sound Emulation
Replies: 24
Views: 22083

Yes, but assuming if my driver is changing instruments frequently, it can't guarantee that release rate is enough to reset volume to lowest, when I change instrument. So I can get unexpected behavior when some instrument with low release rate was changed to some instrument that assume all TL at low...
by Aly James
Sat Mar 08, 2014 5:05 pm
Forum: Sound
Topic: Extreme High Quality Sound Emulation
Replies: 24
Views: 22083

What happens is that the Phase is reset during KEY ON but not the current attenuation level ! That means that although you KEY OFF with all 4 bits to 0 , the attenuation will start where it was. This simply because when you KEY OFF you force the envelope to the release stage directly. The release st...
by Aly James
Fri Mar 07, 2014 5:08 pm
Forum: Sound
Topic: Extreme High Quality Sound Emulation
Replies: 24
Views: 22083

Can you please test this rom: http://elektropage.ru/r57shell/madtest.bin Don't be scared from such distorsion :D It was weird for me. It's ALGO 0 with first slots much less release rate than attack. They still "rotating" during key off at high levels. I just wondering, is it supposed to work in tha...
by Aly James
Fri Mar 07, 2014 4:14 pm
Forum: Sound
Topic: Extreme High Quality Sound Emulation
Replies: 24
Views: 22083

If it can help, Here is the same thing recorded in mono (only FM); Original Megadrive model 1 Headphone filtered output: MD1 Original Megadrive model 1 Direct YM2612 (output pins) unfiltered output: MD1 YM2612 PIN DIRECT As Tiido stated you can clearly hear some simple lowpass filtering. Also note t...
by Aly James
Tue Feb 25, 2014 3:17 am
Forum: Sound
Topic: AY 3 8912/8910 to Genny ?
Replies: 3
Views: 6822

It could be not that hard if it is only simple music.. (simple notes, no custom techniques). First the AY frequency counter is 12-bit versus 10-bit on the PSG which allows for a lower frequency range. (ex: PSG lowest Tone FRQ possible = counter set to 1024 = 109.239044 Hz (NTSC clocked)) Secondly th...
by Aly James
Tue Feb 18, 2014 4:59 am
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

Same here, now displays correctly on every models :)
excepted some garbage on the top line and flickers on the cursor.
by Aly James
Fri Feb 14, 2014 2:27 am
Forum: Tools
Topic: GensKMod on Git
Replies: 32
Views: 35327

Awesome :) Some quick correction to the YM2612 & PSG debug, Please correct these lines in kmod.c //////////////////YM2612 //line 7805 if (YM2612.REG[part][0x60 + chan + 4*op]&0x80) lstrcat(debug_string, "ON\n"); else lstrcat(debug_string, "OFF\n"); // correct handling of AM on/off //line 7834 wsprin...
by Aly James
Mon Feb 03, 2014 8:41 am
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

Thanks for confirming Tiido :)
My ASM instructions reading is not that good, I'll wait on MrD side to check it out!
by Aly James
Mon Feb 03, 2014 8:26 am
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

RAM and registers are loaded with garbage on startup, you need to do some setup on those. TMSS units do some of that cleanup. So in that case, why my early non TMSS loads fine and the TMSS not? + the Hard reset option on the Everdrive should clean system registers b4 game starts. http://krikzz.com/...
by Aly James
Mon Feb 03, 2014 4:52 am
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

garbled display...probably not your custom card. As previously stated it runs fine on my early model 1 (PAL, don't remember which VA but probably early one with external joy port and high-def graphics mention). On another PAL MD later revision (with TMSS and no High def mention) I have the garbled d...
by Aly James
Wed Jan 29, 2014 8:36 pm
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

I think I will get me a MegaEverdrive at some point, USB in/out features sounds interesting... Worth mentioning that Regen or GenKmod can already save dumped channels as .tfi format :) IIRC the Basic Everdrive features a SRAM save function and will save a .srm file onto the SD card, then it should b...
by Aly James
Wed Jan 29, 2014 5:52 pm
Forum: Sound
Topic: Help with setting FM patch values
Replies: 34
Views: 37580

This version has the background and won't crash in Regen. http://www.mrdictionary.net/stuff/2014/smd/20140129_instmaker.zip awesome, loads fine and works fine on MD1 :) If you need or want to improve this at some point, adding pages for CH3 special modes or csm and even CH6 PCM...let me know I will...