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Topic: YM2612

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	SMS Power! - Forums - View topic - Rene's YM2612
		In my brief experience of working with the YM2612, I've come to the conclusion that the problems with sound in emulators are often due to extremely small timing inaccuracies with the writes to the chip.
		Since Gens queues YM2612 writes for each scanline and then writes them in a block at the end, it is messing with the timing quite a lot.
		It's the instruments themselves, like the guitar in TF4, which I'm interested in, I believe it is the minute interactions of the operators which changes the type of sound, and the exact time which they are programmed does not make a difference.
	www.smspower.org /dev/forum/messages/11123.html (1610 words)

	Yamaha YM2612 - Definition, explanation
		YM2612 is a 6 channel FM synthesis (Frequency Modulation) sound synthesizer IC produced by Yamaha.
		It belongs to a family of Yamaha FM synthesizer chips, and can be considered an ancestor to the OPL2 (YM3812) and OPL3 (YMF262) FM ICs that were used in the popular AdLib and Creative Labs SoundBlaster PC soundcards.
		The YM2612 does not provide any timing or buffering of the PCM samples, so all frequency control and buffering must be done in software by the host processor.
	www.calsky.com /lexikon/en/txt/y/ya/yamaha_ym2612.php (268 words)

	[No title]
		Byte 8 - number of voices (+1) in the file; -- FF is for 0 voices -- 00 is for 1 voice -- 01 is for 2 voices -- 02 is for 3 voices, etc. A YMX bank is allowed up to 128 voices.
		Below are the YM2612 register equivallents to each byte in a voice.
		For volume, the max volume on the DX/TX series is equal to the max volume on the YM2612.
	www.randomsonicnet.org /srz/s2music/ymx.txt (324 words)

	Qwika - Yamaha YM2612
		YM2612, aka OPN2, is a six-channel sound synthesizer IC, or sound chip, produced by Yamaha.
		It belongs to a family of sound synthesizer chips produced by Yamaha that uses 'FM', or Frequency modulation synthesis to generate sounds, and is somewhat similar to the YM3812 (OPL2) and YMF262 (OPL3) FM ICs that were used in the popular AdLib and Creative Labs Sound Blaster soundcards for the PC.
		The YM2612 does not provide any timing or buffering of the PCM samples, so all frequency control and buffering must be done in software by the host processor.
	wikipedia.qwika.com /wiki/YM2612 (298 words)

	YM2612
		YM2612 is a 6 channel FM synthesis (Frequency Modulation) sound synthesizer IC produced by Yamaha.
		It belongs to a family of Yamaha FM synthesizer chips, and can be considered an ancestor to the OPL2 (YM3812) and OPL3 (YMF262) FM ICs that were used in the popular AdLib and Creative Labs SoundBlaster PC soundcards.
		The YM2612 does not provide any timing or buffering of the PCM samples, so all frequency control and buffering must be done in software by the host processor.
	www.teachersparadise.com /ency/en/wikipedia/y/ym/ym2612.html (221 words)

	Gym
		The name stands for Genesis '''YM'''2612, since the file contains the data sent to the Yamaha YM2612 sound chip in the console.
		The data is logged to a file through the use of emulator s running a ROM image.
		The new file format VGM also supports Yamaha YM2612 logging and is already supported by many popular emulators.
	www.seattleluxury.com /encyclopedia/entry/gym (338 words)

	[No title]
		The YM2612 has two address lines, so it is available at 4000-4003h and is mirrored repeatedly up to 5FFFh.
		For as long as the Z80 is reset, the YM2612 cannot be used.
		It is actually on the same physical chip as the VDP, and it's output comes directly out of the VDP to be mixed with the YM2612.
	cgfm2.emuviews.com /txt/gen-hw.txt (2832 words)

	Sega Genesis Audio Quality - The Problem - Sega-16 Forums
		For the YM2612, it sets the DAC (not the 6th channel DAC, I am talking about the FM DACs), so it can produce a steady audio wave.
		To the CPU, this is fine, to the YM2612, this was a disaster, it made the DAC clock itself down, to be able to produce anything.
		The YM2612 in it is a CLONE, and lives inside the 315 chipset.
	www.sega-16.com /forum/showthread.php?t=2016 (1061 words)

	NedoPC :: View topic - YM2612
		Кроме того,бродя в Инете, на каком-то японском сайте нашёл схемы включения почти всех (включая YM2612) Ямаховских звуковых чипов с фотками макеток собранных плат.
		А мне нужен датащит на YM2612, коего я там не нашел (а может плохо искал?)....
		Да и вообще - регистр статуса YM2612 можно и не опрашивать, так как LPT-порт - достаточно медленное устройство.
	www.nedopc.org /forum/viewtopic.php?p=76177&sid=60bd65bc048af9cc19b469955a03b5f5 (1125 words)

	VGM at AllExperts (Site not responding. Last check: )
		On November 20, 2005, VGM 1.50 was officially announced, and a new version of the input plugin released.
		The new version of the format now supports PCM optimization for the Yamaha YM2612 sound chip, what makes sound files using the chip a lot smaller - sometimes with over 75% of size reduction.
		The first YM2612 VGM archive, Project 2612, optimized all of its packages soon after.
	en.allexperts.com /e/v/vg/vgm.htm (288 words)

	Sega Megadrive YM2612 tracker released
		YM2612 chip, which used in SMD, is a one of next soundchips in same line (OPN2).
		So, features of FM synth in YM2203 and YM2612 is quite similar.
		TFM Music Maker can be used to compose SMD music if you keep in mind difference between TFM and YM2612 - mainly in part of SSG-EG.
	p068.ezboard.com /Sega-Megadrive-YM2612-tracker-released/fstreetsofrageonlinefrm9.showMessage?topicID=259.topic (288 words)

	YM2612 - Sonic Retro
		YM2612 is a 6 channel FM synthesis (Frequency Modulation) sound synthesizer integrated circuit produced by Yamaha.
		It belongs to a family of Yamaha FM synthesizer chips, and can be considered an ancestor to the OPL2 (YM3812) and OPL (YMF262) FM ICs that were used in the popular AdLib and Creative Labs SoundBlaster PC soundcards.
		The synth patches used by the YM2612 in Megadrive games are compatible with certain members of the Yamaha DX/TX synthesizers, such as the DX100.
	info.sonicretro.org /YM-2612 (276 words)

	Eidolon's Inn : YM2612
		Here's my first crack at the ym2612, i thought it'd be "interesting" to see what others think ha ha.
		And Drums and other sounds that play through the DAC would require a special work too, but it could be done.
		Re: Re: Re: Re: Re: Re: Re: YM2612
	www.eidolons-inn.net /tiki-view_forum_thread.php?comments_parentId=627&topics_threshold=0&topics_offset=36&topics_sort_mode=lastPost_desc&topics_find=&forumId=3 (3223 words)

	Forums de Abcelectronique - utiliser le processeur sonore YM2612 récupéré d'une mégadrive2
		Je ne connais pas le YM2612, mais après avoir survolé le lien que j'ai indiqué dans l'autre post, j'ai l'impression qu'il fonctionne un peu comme le YM2149 qui est le circuit son des Atari 520 ST (et modèles supérieurs).
		Dans ce cas tu as sans doute besoin, pour le faire fonctionner, d'un circuit d'alimentation, d'un circuit d'horloge, d'un circuit pour gérer la programmation des registres et d'un circuit d'amplification du son.
		dommage que j'ai encore rien vu sur le ym2612...
	www.abcelectronique.com /forum/printthread.php?t=3034 (674 words)

	Slightlydark.com Forums - The GYM replacement project.
		That person could be whomever, who wants, and is able to program (in any language) and willing to learn the YM2612, and a dozen of other soundchips.
		It's the player (and it's driver) which produces the sound, not the format itself (but as I said, GYM is an exception to this, because of improper logging).
		I don't own the game, so I don't know wether it is the YM2612 emulator or the soundtrack which stands for the creation / loss of the reverb.
	www.slightlydark.com /forums/showthread.php?t=2063 (1630 words)

	Emu#dreams (c) '1997-2007
		With Gens 2.14 (you can get it in the download section), we now have much better support of Sega CD save state (thanks to Upthorn, he did the job here), but it's still not really safe to use it as i doesn't work every time.
		SGG ENV support was desactived from the YM2612 since it brings severals bugs in the core unfortunatly.
		Some others minors stuff were modified, consult the history file to know more about them.
	emu.makii.pl /njus_detal.php3?id=122 (226 words)

	GENS - OFFICIAL HOME PAGE
		It'll be easier for me to improve them now since it's my own code (i was using a modified version of the PSG and the YM2612 MAME core in previous Gens version).
		I think the YM2612 core already sounds good but i want to improve speed and accuracy in future, it's why feedback and bugs reports are welcome :)
		YM2612 emulator upgraded to the last version, FM sound is a bit better.
	gens.consolemul.com /history.shtml (2563 words)

	Okiw
		GYM is a sound format for the Sega Mega Drive/Sega Genesis.
		The name stands for Genesis YM2612, since the file contains the data sent to the Yamaha YM2612 sound chip in the console.
		The data is logged to a file through the use of emulators running a ROM image...
	www.okiw.pl (1666 words)

	Emu Programming: YM2612 Envelope Generator
		I'm trying to convert the envelope generator's attack/decay rates, the 6-bit values, into actual time.
		Some manuals for related chips (OPL3, OPM) give tables, but they are different from one another and the different clocks probably mean that the tables don't apply.
		Also, if someone knows where I can get the YM2612 manual, I would appreciate it (although the exact wait mechanism isn't likely to be described since it isn't in other Yamaha FM chips' manuals).
	www.retrogames.com /cgi-bin/wwwthreads/showpost.pl?Board=retroemuprog&Number=3964&page=0&view=expanded&mode=threaded&sb=7 (106 words)

	Software: Generator (Site not responding. Last check: )
		To that end, it provides surprisingly fast performance for an emulator with no assembly code in it, using tricks such as block marking and redundant flag calculation removal.
		Support for both standard sound chips (YM2612 and SN76489).
		Two different video rendering modes; one for speed, one for accuracy.
	www.bannister.org /software/generator.htm (84 words)

	Mac Game Database > Product Detail > Generator/MacOS
		Registered users who are logged in may rate the games in our database.
		Accurately emulates both the YM2612 FM chip and the SN76489 PSG.
		Support of cheat codes is included, with a database of cheats accessible inside the emulator.
	www.gamedb.com /ssps/0/1/00966 (58 words)

	Picodrive 0.96
		The most important feature which I am very happy about is the utilization of the second processor.
		It now can be used to generate YM2612 sound samples, what causes quite an improvement of overall performance.
		It would be nice if someone would check, I do not have time for that now.
	www.generalemu.net /forums/Picodrive-096-t-818.html (320 words)

	Generator - Emuscene Wiki
		To that end, it provides surprisingly fast performance for an emulator with no assembly code in it, using tricks such as block marking and redundant flag calculation removal.
		Support for both standard sound chips (YM2612 and SN76489).
		Two different video rendering modes; one for speed, one for accuracy.
	www.macemu.com /wiki/index.php/Generator (110 words)

	SourceForge.net: scummvm-tracker
		First, apologies if this bug is the same cause as the no looping audio; but in zak256 when you use the kazoo it just plays a blip, whereas using the fm towns emulator he plays the indy theme.
		YM2612 implementation has been submitted as a patch
		Just a note that the YM2612 was used for FM synth on the
	sourceforge.net /mailarchive/forum.php?forum_id=10311&style=flat&viewday=5&viewmonth=200310 (1669 words)

	[No title]
		However, if you try to run the ISO file, it will not find the MP3 tracks (unless you first rename the ISO file to remove the "01".) If you have existing CD images on your XBox that worked with another port of GENS, then they will also work with this one.
		The sound output is more accurate in HQ mode, but it slows things down a bit.
		Gens also features an "improved" DAC (part of the YM2612) sound mode.
	www.xbins.org /nfo.php?file=xboxnfo294.nfo (3174 words)

	[No title]
		Genesis sound output is driven by a secondary Z80 processor running at 4Mhz, however the 68000 can also control the sound hardware directly.
		The Genesis uses a YM2612 sound chip which has six FM channels and one digital channel.
		Neill Corlett for general 68K information Merlyn LeRoy for the Sega Game Genie format Special thanks to Loaded and Benny Boola Hill Yuzo Koshiro would be proud Marat Fayzullin, Jens Restemeier, Carl-Henrik Skårstedt, and Zophar And Y0SHi for kindly donating webspace.
	www.zophar.net /faq/nitrofaq/genecyst.readme.txt (1419 words)

	pouet.net BBS :: USB chip music card
		I NEED Somebody who is OPL3 or Yamaha YM2612 Coder.
		AFAIK most of sound chips these days used analog synthesis, so if that's the case, you aren't going to reproduce them using digital FPGA's.
		If I'm not completely wrong the YM2612 is a subset of the OPL2 (YM3812) which is a subset of the OPL3.
	www.pouet.net /topic.php?which=2793 (182 words)

	DevSter - Welcome, Corpsicles!
		The ym2612 tracker i made and used to make the fm test rom is now released.
		The sources can only be used for assembly, but i'm sure it can be used for C too.
		For the last day of August, I'm going to release a ROM with my first attempt at music playing for the ym2612.
	devster.monkeeh.com /news2004.html (1069 words)

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