Research any topic before you write.

Find related topics.Discover entities.See connections.Build a topical map.

Yamaha YM2413

The YM2413, a.k.a. OPLL, is a 9-voice FM synthesis sound chip manufactured by Yamaha Corporation. It is related to Yamaha's OPL family of FM synthesis chips, being a cost-reduced version of the YM3812 (OPL2). It has nine concurrent FM channels with two operators per channel, and features a percussion mode (or rhythm mode) that turns the last three…

[EN, English, English]

Companies, Variants & Overview

Interactive map loads when it comes into view.
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Yamaha YM2413. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Component type
sound chip
First produced
1986
Invention year
1 July 1986
Manufacturer
Yamaha

Topics to explore

A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Description

Variants

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

Yamaha YM2413

Nodes33
Edges32
Triples12
Avg. degree1.94
Density0.060606
Components1

How this topic connects Entity context

Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.

See the strongest relationship patterns around the current topic before diving into the raw triples.

Yamaha YM2413

Top relations

related to External links · 8
Yamaha YM2413 → Accessed, AGE Labs, Brychkov, FM-Pak, Luppes, Martin, Musicd'Osvualdo, SRAM
Component type · 1
Yamaha YM2413 → sound chip
First produced · 1
Yamaha YM2413 → 1986
Invention year · 1
Yamaha YM2413 → 1 July 1986
Manufacturer · 1
Yamaha YM2413 → Yamaha

Important terminology Word statistics

Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

ym2413 fm yamaha also different chip sound patches dac used built pinout um3567 two built-in game machines variants msx removed

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Yamaha YM2413Component typesound chip1.00infobox
Yamaha YM2413First produced19861.00infobox
Yamaha YM2413Invention year1 July 19861.00infobox
Yamaha YM2413ManufacturerYamaha1.00infobox
Yamaha YM2413related to External linksMusicd'Osvualdo0.60section
Yamaha YM2413related to External linksLuppes0.60section
Yamaha YM2413related to External linksMartin0.60section
Yamaha YM2413related to External linksBrychkov0.60section
Yamaha YM2413related to External linksFM-Pak0.60section
Yamaha YM2413related to External linksSRAM0.60section
Yamaha YM2413related to External linksAGE Labs0.60section
Yamaha YM2413related to External linksAccessed0.60section

Related concept clusters Concept neighborhoods

Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.