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Published

loudspeaker

vr.tr.loudspeaker · thing-q570

Let an agent explain loudspeakers and how they work, relay driver types, enclosures, specifications and history from audio engineering sources, describe uses from hi-fi to public address, and distinguish loudspeakers from headphones, amplifiers, microphones and complete audio products.

Thing Registry Physical world and living systems PHY.OBJ
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What a loudspeaker is.

Definition

Definition and working.

Definition

Definition.

  1. What is a loudspeaker, how does a driver produce sound, and how does it differ from headphones, amplifiers and microphones? definition
  2. Is the question about the device, a type, a product or a sound system? boundary

Types

Types.

Types

Types.

  1. What are dynamic, electrostatic and horn loudspeakers, and what are PA, guitar and consumer speakers? definition
  2. Which entry fits the specific type? action
Engineering Engineering.

Specifications

Specifications.

Specifications

Specifications.

  1. How are frequency response, sensitivity, impedance and directivity measured and read? measurement
  2. Which references are standard? provenance

Enclosures

Enclosures and crossovers.

Enclosures

Enclosures.

  1. How do enclosures, ports and crossovers shape performance? provenance
  2. Which sources are cited? provenance
Use Uses.

Home

Home and studio.

Home

Home.

  1. How are speakers chosen and placed for hi-fi, home cinema and studios? action
  2. Which entry fits high fidelity? action

Public

Public address and stage.

Public

Public.

  1. How are PA systems, line arrays and instrument speakers used? provenance
  2. Which entry fits public address system? action
Context History and products.

History

History.

History

History.

  1. How did loudspeakers develop from early horns to moving-coil and modern designs? provenance
  2. Which entry fits the history of sound recording? action

Products

Named products.

Products

Products.

  1. What were the iPod Hi-Fi, the Kano Speaker Kit and the Poetry Jukebox? provenance
  2. Which entry fits the specific product? action

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.OBJ
Other names and narrower kinds
public address loudspeaker, Kano Speaker Kit, Poetry Jukebox, iPod Hi-Fi, guitar amplifier loudspeaker, ASW, mechanical siren, Creoqode AUDX, ground speaker, motor vehicle speaker, SRS-XV800, Dome loudspeaker

What it is Filled

An electroacoustic transducer that converts an electrical audio signal into sound, typically a cone driven by a voice coil in a magnetic field mounted in an enclosure, in forms from hi-fi and studio speakers, public address loudspeakers and guitar amplifier speakers to consumer products such as the iPod Hi-Fi, educational kits such as the Kano Speaker Kit, art installations such as the Poetry Jukebox and active subwoofers; loudspeakers are characterised by frequency response, sensitivity, impedance and directivity.

Why it exists Filled

Let an agent explain loudspeakers and how they work, relay driver types, enclosures, specifications and history from audio engineering sources, describe uses from hi-fi to public address, and distinguish loudspeakers from headphones, amplifiers, microphones and complete audio products.

Distinguishing features Filled

  • Electroacoustic transducer
  • Driver and enclosure
  • Many formats
  • Measured performance

What robots and AI may and may not do Filled

Must not

  • Play sound at levels that can damage hearing.
  • Use public address speakers to broadcast false alarms or messages without authority.
  • Run loud sound in residential areas at night in breach of noise rules.
  • Use speakers to harass or disturb people or animals.

Only with a human decision

  • Broadcasting emergency messages over a public address system.

May

  • Set up, test and adjust loudspeakers the agent is authorized to operate.
  • Explain driver types, enclosures and their use in hi-fi, studio and public address systems.
  • Monitor sound levels and report when they exceed safe or permitted limits.

Moral aspects Filled

  • Loud sound causes permanent hearing loss, often in young people.
  • Public address systems carry safety messages that must be trusted.

Who is affected

  • Listeners
  • Neighbours
  • Event workers

Owners Filled

Steward

The owner or operator of the system.

Links to other meta-models Filled

parent

  • Q1718024 - registry parent class
  • Q267228 - registry parent class
  • Q3749263 - registry parent class

related

  • sound transducer - in registry terms
  • sound generator - in registry terms
  • electrical device - in registry terms
  • audio power amplifier - in a sound system

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.loudspeaker
  • Wikidata: Q570 (https://www.wikidata.org/wiki/Q570)

Direct properties required Filled

  • moving-coil driver patented: 1925 year - Rice and Kellogg
  • typical impedance: 4 or 8 ohms
  • typical sensitivity: about 85-95 dB at 1 W 1 m

Recognition required Filled

  • Electrical signal to sound transducer
  • Hi-fi speakers, PA loudspeakers, guitar amplifier speakers, iPod Hi-Fi, Kano Speaker Kit, Poetry Jukebox, subwoofers
  • Headphones sit on the ears; amplifiers drive speakers; microphones convert sound to signal
  • A box or cabinet with one or more cone or dome drivers.

Capabilities and actions required Filled

  • explain working and types
  • relay specifications and history
  • describe uses
  • distinguish related devices

Hazards and failure modes required Filled

  • Hearing damage from high levels
  • Confusing speakers with complete systems
  • Registry aliases naming products and installations

Standards and interfaces required Filled

  • IEC 60268 sound system equipment standards
  • Electrical safety and EMC regulations
  • Noise regulations for public address

Context of use required Filled

  • Reproducing sound from electrical signals.
  • dynamic cone and dome drivers
  • electrostatic, planar and horn loudspeakers
  • hi-fi and studio monitors
  • public address and line array loudspeakers
  • guitar and instrument speakers
  • active and wireless consumer speakers such as the iPod Hi-Fi
  • kits and installations such as the Kano Speaker Kit and Poetry Jukebox

Sources Filled

  1. Wikidata item Q570: loudspeaker - identity and sense of the item
  2. Wikipedia: Loudspeaker - general description of the item

Open questions

  • Should subwoofer, PA loudspeaker and guitar speaker be separate primary entries?
  • How should audio engineering sources be linked?
  • The registry entry has merged aliases naming products, a kit and an art installation; should they be split off?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q570/spec.json