Yamaha YM2608
E736646
The Yamaha YM2608, also known as the OPNA, is an advanced FM synthesis sound chip used primarily in Japanese PCs and arcade systems, featuring integrated FM, SSG, ADPCM, and rhythm sound capabilities.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Yamaha YM2608 canonical | 2 |
| Yamaha YM2608 (software-level similarity) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8472799 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yamaha YM2608 Context triple: [Yamaha YM2612, relatedTo, Yamaha YM2608]
-
A.
Yamaha YM2610
The Yamaha YM2610 is a classic FM synthesis and ADPCM sound chip widely used in arcade and Neo Geo game systems to produce rich, multi-channel audio and sound effects.
-
B.
Yamaha YM2151
The Yamaha YM2151 is an 8-channel FM synthesis sound chip widely used in 1980s arcade machines and computers to produce rich, multi-voice music and sound effects.
-
C.
Yamaha YM2612
The Yamaha YM2612 is a six-channel FM synthesis sound chip widely known for defining the distinctive music and audio of many 16-bit Sega Genesis/Mega Drive games.
-
D.
Texas Instruments SN76489
The Texas Instruments SN76489 is a classic programmable sound generator chip widely used in early home computers and game consoles to produce simple three-voice music and sound effects.
-
E.
MOS Technology SID
The MOS Technology SID is a legendary programmable sound chip renowned for its rich, distinctive synthesizer-like audio in classic home computers and game music, most famously in the Commodore 64.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yamaha YM2608 Target entity description: The Yamaha YM2608, also known as the OPNA, is an advanced FM synthesis sound chip used primarily in Japanese PCs and arcade systems, featuring integrated FM, SSG, ADPCM, and rhythm sound capabilities.
-
A.
Yamaha YM2610
The Yamaha YM2610 is a classic FM synthesis and ADPCM sound chip widely used in arcade and Neo Geo game systems to produce rich, multi-channel audio and sound effects.
-
B.
Yamaha YM2151
The Yamaha YM2151 is an 8-channel FM synthesis sound chip widely used in 1980s arcade machines and computers to produce rich, multi-voice music and sound effects.
-
C.
Yamaha YM2612
The Yamaha YM2612 is a six-channel FM synthesis sound chip widely known for defining the distinctive music and audio of many 16-bit Sega Genesis/Mega Drive games.
-
D.
Texas Instruments SN76489
The Texas Instruments SN76489 is a classic programmable sound generator chip widely used in early home computers and game consoles to produce simple three-voice music and sound effects.
-
E.
MOS Technology SID
The MOS Technology SID is a legendary programmable sound chip renowned for its rich, distinctive synthesizer-like audio in classic home computers and game music, most famously in the Commodore 64.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
FM synthesis chip
ⓘ
integrated audio IC ⓘ sound chip ⓘ |
| alsoKnownAs | OPNA NERFINISHED ⓘ |
| application |
arcade game sound
ⓘ
computer music ⓘ video game music ⓘ |
| audioFormat | 4-bit ADPCM ⓘ |
| compatibleWith | Yamaha YM2203 (OPN) NERFINISHED ⓘ |
| controlInterface | parallel bus interface ⓘ |
| countryOfUse | Japan NERFINISHED ⓘ |
| designedFor |
multi-channel music synthesis
ⓘ
sound effects generation ⓘ |
| era |
early 1990s
ⓘ
late 1980s ⓘ |
| family | Yamaha OPN/OPNA sound chips ⓘ |
| feature |
I/O ports
ⓘ
LFO (low-frequency oscillator) ⓘ envelope generators ⓘ integrated ADPCM channel ⓘ integrated FM channels ⓘ integrated SSG channels ⓘ integrated rhythm sound source ⓘ timers ⓘ |
| hasComponent | YM2149-compatible SSG core ⓘ |
| hasRhythmSounds | preset drum and percussion samples ⓘ |
| integrationLevel | multiple sound generation methods on one chip ⓘ |
| manufacturer | Yamaha Corporation NERFINISHED ⓘ |
| notableFor |
rich FM and PCM hybrid sound
ⓘ
widespread use in PC-98 game soundtracks ⓘ |
| powerSupply | single-chip LSI audio solution ⓘ |
| predecessor | Yamaha YM2203 NERFINISHED ⓘ |
| series | OPN family ⓘ |
| successor | Yamaha YM2610 NERFINISHED ⓘ |
| technology |
ADPCM
ⓘ
FM synthesis ⓘ SSG (Software-controlled Sound Generator) NERFINISHED ⓘ rhythm sound generator ⓘ |
| usedIn |
Japanese personal computers
ⓘ
PC-88VA series NERFINISHED ⓘ PC-9801 series NERFINISHED ⓘ arcade systems ⓘ sound expansion boards for NEC PCs ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Yamaha YM2608 Description of subject: The Yamaha YM2608, also known as the OPNA, is an advanced FM synthesis sound chip used primarily in Japanese PCs and arcade systems, featuring integrated FM, SSG, ADPCM, and rhythm sound capabilities.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Yamaha YM2608 (software-level similarity)