Hi.
Most of these chips can't be obtained on their own without buying a vintage keyboard or game console and gutting it just to find the chip in question, because most consoles had multiple chips for audio and video.
Plus, some chips, like the RP2A03, DMG-CPU, TIA, and the SID, had other things other than audio hardware built in.
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your favorite sound chip? (Page 3 of 3)
AudioGames.net Forum → Off-topic room → your favorite sound chip?
Posts: 51 to 74 of 74
#51 2019-02-28 22:14:48 (edited by FamilyMario 2019-02-28 22:18:10)
#52 2019-04-18 08:09:03
I don't know if this is the right topic to posting this but... anyone is interested in melodi ICs? I like them, for example... listen to this video which shows various melody ICs. Most notable are Seiko Epson, Sharp and Chinese companies who manofacture them. Second part is here! If you're a melody IC freak, these two videos will keep you entertained for a long time!
What are the ICs that you liked?
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#53 2019-04-18 14:33:04
Go ahead. that 3rd one is my favorite so far.
#54 2019-04-18 16:36:54
Didn't expect this topic to come back from the dead.
It's also worth noting that the patch set for the Konami VRC7 has finally been extracted from the chip itself by putting it in debug mode. Previously emulator and NSF player developers had to guess the approximate FM values for each of the predefined patches. Now, NukeYKT has dumped the exact values for the predefined patches by hardwiring the chip into a debug mode. He was also able to dump the 3 drum patches. Yes, the vrc7 has drums in debug mode, but before you get excited, they don't seem to produce any sound on any of the pins, since it seems like the VRC7 doesn't have an RO pin like the YM2413/OPLL does, but if you try to trigger the drums their patches do show up in the debug registers, so the VRC7 must still be trying to play them.
As far as I'm concerned alpha versions of Mesen and NSFPlay are the only ones that started using this new patch set.
As for post 52, hmm, never heard of these. Will have to take a look.
#55 2019-04-18 20:35:38
I heard that these melody ICs are used in train stations in Japan and much more... also in other contries they are used in things like Garbage trucks. I do not know if one of these was used in toys. In the first video I linked... from 07:08, I loved that IC but I do not know its name. It has lovely melodies and tones that makes me wonder what kind of method uses for generate sounds. Seems that it has 3 channels (?).
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#56 2019-04-18 20:50:26
@FamilyMario Wait... Nuke.YKT? He made the Nuked-OPN2 and Nuked-OPL3 cores! I haven't updated NSFPlay for months. I think stable version 2.4 was already released.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#57 2019-04-18 21:51:25
Stable NSFPlay 2.4 has been released. Rainwarrior took a break from it because he had to work on his NES game called Lizard, which has been in development since 2014.
NSFPlay unstable 2.5 is the one that has the new VRC7 patch set as the default, but you can change the patch set in in_yansf.ini.
#58 2019-04-19 04:56:40
Was not necesary to modify in_yansf.ini to set Nuke.YKT's VRC7 patch dump. The config file already have VRC7_PATCH set to 0 which is Nuke.YKT's patch dump.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#59 2019-04-19 05:44:01
Yeah, but the NSFPlay TXT readme also has settings for other preset VRC7 patch sets. All you have to do is modify the VRC7_PATCH setting in in_yansf.ini. The possible values are:
0 - VRC7 set by Nuke.KYT 3/15/2019 (dumped from VRC7 via special debug mode)
1 - VRC7 set by rainwarrior 8/01/2012 (used by Famitracker 0.4.0)
2 - VRC7 set by quietust 1/18/2004 (used by Famitracker 0.3.6)
3 - VRC7 set by Mitsutaka Okazaki 6/24/2001 (used by Famitracker 0.3.5 and prior)
4 - VRC7 set by Mitsutaka Okazaki 4/10/2004
5 - VRC7 set by kevtris 11/15/1999 (second set in vrcvii.txt)
6 - VRC7 set by kevtris 11/14/1999 (first set in vrcvii.txt)
7 - YM2413 set by Mitsutaka Okazaki 4/10/2004
8 - YMF281B set by Chabin 4/10/2004
#60 2019-04-19 16:47:02
the seco epson melody IC was used in various musical toys put out by fissure price in the early 2000s, and the sharp one was used in some alarm clocks. the third one is used in some landline phones in the US (I know that because our old home phone was one of them), and the fifth one was used in a childrens Electronic engeneering kit that we had in Science class.
#61 2019-04-19 23:19:28
I loved that IC of the first video, from 07:08. And the second video shows the SM1350AAQM single-chip melody IC, which was manufactured by Seiko NPC. It features the Dual Wave Synthesis sound generator. I loved it. IIRC, I posted that IC in post 24.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#62 2019-04-20 02:40:43
another favorite is the umc 6619 used in the super akan (taiwanese game console from 1995). this chip is very similar to the one used in the tg16 (huc6280)
#63 2019-04-20 03:37:01
UMC? That sounds me familiar, UMC was the company that manufactured a OPL clone? (I don't know if was the YM2413 or another of the OPL family).
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#64 2019-04-20 03:47:29
UMC also manufactured clone chips that were used in very early Famiclones of the day. They also later manufactured the NOAC (NES On a Chip) circuits.
#65 2019-04-20 04:08:36 (edited by Dekyo-NEC2608 2019-04-20 04:11:33)
Speaking of chip clones, does anyone cknow the YM2612 clone called SE-95?
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#66 2019-04-20 04:51:39
no I haven't heard of it. Here are ones I do know:
ncr7xx (sn77489 clone used in tandy1000)
winbond wb300 (ay 8910 clone used in slot machines)
there was a YMZ series chip that was just a ym2149 with a built in dac.
Op t990 (OPL3 clone used in various sound cards)
ES1688 (enhansed OPL3 clone used in early audiodrive sound cards)
cs4281 (another OPL3 clone used in sound cards)
#67 2019-04-20 05:44:23
The SE-95 has a bit less of ladder effect. If you do not know what ladder effect is... it is the quantization noise that the YM2612's built-in DAC produces.
Nuke.YKT's OPN2 core emulates this perfectly. MAME's YM2612 core does not emulate this in any way, the sound is totally pure.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#68 2019-04-20 13:55:06
Does anyone know what products used the SE95?
#69 2019-04-21 00:03:01
I listened the Super A'Can, and I can say that the sound is PCM.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#70 2022-07-06 09:11:07 (edited by Dekyo-NEC2608 2022-07-06 10:53:52)
Bringing this topic from the death because someone uploaded a video of the Holtek HT3894A, also known as the melody IC used in the Nichols Electronics OMNI. Take a listen! I recommend this channel if you're in that kind of content.
Holtek did various melody ICs, and they're the ones behind "My Music Center" sound hardware too. It's known as the Holtek "Ad-Lib Micro" HT36 series, officially called "uC Piano" series. The sound generation method is called "ETS" (Electronic Tone Synthesizer/Electrical Tone Synthesizer).
They probably are the ones behind this one, too.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#71 2022-07-07 01:39:02
I would also like to draw your attention to an OPLL clone called the K633-A. It was only ever used in one game, and it's an unlicensed Famicom game of all things. The game in question is called Family Norebang, which from what I could dig up, seems to be a karaoke-type game with songs that are exclusively covers. The entire soundtrack uses nothing but the K633-A, and no internal 2A03 channels at all.
https://youtu.be/MvAfFBYxtp8
#72 2022-07-07 13:31:54 (edited by Dekyo-NEC2608 2022-07-07 15:41:51)
Someone logged a VGM pak of the Family Noraebang, you can find it in mrNorbert1994's NSF archive. Pretty good remixes in there!
Back to Holtek, they also manufactured other ICs, and some of them were the heart of a few Brick Game. For example this one. I'm unsure about others though. More info in this blog post (sorry, it's in Portuguese).
The Holtek HT1130, and the HT1113LA variant are part of a series of ICs called "Game Controller MCU" (previously called "Recreation" and "LCD Game Series").
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#73 2022-08-31 15:34:42 (edited by Dekyo-NEC2608 2022-08-31 15:35:41)
More Holtek stuff: Ian Wan uploaded the 6 demo songs from the BIGFUN BF-430A1. My Music Center fans, rejoice! These are a bit different though.
Yamaha YM2608
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
YOU
SAY! - Sonic the Hedgehog CD (Dec 4, 1992 prototype)
#74 2022-08-31 16:55:17
offcourse SID from commodore lol
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