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microphone

vr.tr.microphone · thing-q46384

Let an agent explain microphones and how they work, relay types, polar patterns and applications from audio engineering sources, describe the products the registry aliases name, and distinguish microphones from loudspeakers, pickups, hydrophones and audio interfaces.

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 microphone is.

Definition

Definition.

Definition

Definition.

  1. What is a microphone, and how does it differ from a loudspeaker, pickup, hydrophone and audio interface? definition
  2. Is the question about principles, a type, a product or an application? boundary

Types

Types and products.

Types

Types.

  1. What are dynamic, condenser, ribbon, MEMS and USB microphones, and what are the Rode, Royer and STC models named? definition
  2. Which entry fits the specific type or product? action
Technology Technology.

Principles

Principles.

Principles

Principles.

  1. How do electromagnetic, capacitive and ribbon transduction work? provenance
  2. Which references are standard? provenance

Patterns

Polar patterns.

Patterns

Patterns.

  1. What are polar patterns, and how are they achieved? provenance
  2. Which sources are cited? provenance
Use Use.

Recording

Recording and live.

Recording

Recording.

  1. How are microphones chosen and placed for voice, instruments and live sound? provenance
  2. Which entry fits microphone technique? action

Other

Other applications.

Other

Other.

  1. How are microphones used in telephony, devices and measurement? provenance
  2. Which entry fits acoustic measurement? action
Context History.

History

History.

History

History.

  1. How did microphones develop from carbon to condenser and digital? provenance
  2. Which entry fits the history of sound recording? action

Makers

Makers.

Makers

Makers.

  1. Which manufacturers are notable, such as Neumann, Shure, Rode and Royer? provenance
  2. Which entry fits the specific manufacturer? 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
Røde NT-USB, Royer SF-24, Røde NT1-A, Røde NT-USB Mini, omnidirectional microphone, STC 4021 microphone, pressure gradient microphone, pressure microphone, laser microphone, Wii Speak, boundary microphone, Stenomask

What it is Filled

A transducer that converts sound into an electrical signal, used in recording, broadcasting, telephony, public address and measurement, in types such as dynamic, condenser, ribbon and MEMS microphones, with directional patterns from omnidirectional to cardioid and figure-eight, and products such as the Rode NT1-A condenser, Rode NT-USB and NT-USB Mini USB microphones, the Royer SF-24 stereo ribbon microphone and the historical STC 4021 ball microphone; the registry also classes microphones as sensors and, loosely, as musical instruments.

Why it exists Filled

Let an agent explain microphones and how they work, relay types, polar patterns and applications from audio engineering sources, describe the products the registry aliases name, and distinguish microphones from loudspeakers, pickups, hydrophones and audio interfaces.

Distinguishing features Filled

  • Transducer
  • Several operating principles
  • Directional patterns
  • Wide application

What robots and AI may and may not do Filled

Must not

  • Record people without their knowledge where law or decency requires consent.
  • Leave a microphone recording or streaming after the user believes it is off.
  • Use recorded voices to clone or impersonate a speaker.
  • Share recordings beyond the audience the speakers agreed to.

Only with a human decision

  • Activating microphones in private spaces or shared homes.
  • Keeping recordings longer than the stated purpose needs.

May

  • Turn on a microphone only when its user has asked or agreed to it.
  • Report which microphones are active and who can hear them.
  • Set levels and settings for recording or calls on the user's instructions.

Moral aspects Filled

  • Microphones capture private conversation; covert listening is a serious intrusion.
  • Voice recordings can be used for impersonation and fraud.

Who is affected

  • People being recorded
  • Bystanders
  • The device user

Owners Filled

Steward

The person or organisation that operates it.

Links to other meta-models Filled

parent

  • Q167676 - registry parent class
  • Q1718024 - registry parent class
  • Q34379 - registry parent class
  • Q864114 - registry parent class

related

  • sound transducer - in registry terms
  • sensor - in registry terms
  • loudspeaker - the reverse transducer
  • Shure SM58 - a widely used dynamic microphone

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.microphone
  • Wikidata: Q46384 (https://www.wikidata.org/wiki/Q46384)

Direct properties required Filled

  • invented: 1876-1878 note - Berliner, Edison, Hughes
  • Neumann U 47: 1947 year - landmark condenser
  • polar patterns: omni, cardioid, supercardioid, figure-eight list
  • Rode NT1-A self-noise: about 5 dBA

Recognition required Filled

  • Sound-to-signal transducer
  • Dynamic, condenser, ribbon and USB microphones; omnidirectional pattern; Rode NT1-A, NT-USB, Royer SF-24, STC 4021
  • Loudspeakers do the reverse; pickups sense vibration; hydrophones work underwater; interfaces convert signals
  • A handheld, stand-mounted or built-in capsule, often with a grille.

Capabilities and actions required Filled

  • explain principles
  • relay types and patterns
  • describe products
  • distinguish related devices

Hazards and failure modes required Filled

  • Feedback and handling noise
  • Registry aliases naming specific products
  • Confusing microphones with pickups or interfaces

Standards and interfaces required Filled

  • IEC 60268-4 microphone measurement standard
  • Radio spectrum rules for wireless microphones

Context of use required Filled

  • Capturing sound as an electrical signal.
  • dynamic microphones
  • condenser microphones including electret
  • ribbon microphones
  • MEMS and lavalier microphones
  • USB microphones
  • measurement microphones
  • historical microphones such as the STC 4021

Sources Filled

  1. Wikidata item Q46384: microphone - identity and sense of the item
  2. Wikipedia: Microphone - general description of the item

Open questions

  • Should condenser and ribbon microphones be separate primary entries?
  • How should audio engineering sources be linked?
  • The registry entry has merged aliases naming specific products; 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-q46384/spec.json