noise
sound of any kind (especially unintelligible or dissonant sound)
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle noise by source, level, effects, regulation and control, and separate acoustic noise from signal noise.
Sound of any kind, especially unwanted, unintelligible or dissonant sound such as bangs, blasts and banging; in science and engineering also random fluctuations that obscure a signal.
What it is for: Understanding and controlling unwanted sound and interference.
It can be measure noise levels; reduce noise at source or path; protect hearing; report noise nuisance.
Distinguishing features
Unwanted or random sound
Measured in decibels
Harms health above certain levels
Signal noise is a technical sense
What it looks like
Heard as unwanted sound; seen as random variation in signals.
Physical character
occupational action value (upper): 85 dB(A) - EU daily exposure
WHO road traffic guideline: 53 dB Lden - Europe guidelines
How it is recognised
Levels in dB(A)
Sources such as traffic or construction
Signal noise in electronics and data
Related models
is a kind of - category
can cause - harm
is regulated by - rules
is contrasted with - information
In practice
Families and kinds
environmental noise
occupational noise
impulse noise
neighbour noise
signal noise (electronic)
Standards and regulation
EU Environmental Noise Directive 2002/49/EC
EU Directive 2003/10/EC noise at work
WHO Environmental Noise Guidelines
ISO 1996 environmental noise measurement
Failure modes and hazards
Hearing loss
Sleep disturbance and stress
Masked warning signals
Analytical facets
- substance
- activity
- origin
- conceptual
- agency
- inert
- mobility
- not-applicable
- scale
- not-applicable
- affordances
- observable
Also called
+68
Where this came from
oewn:2024 · CC BY 4.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Source Where it comes from.
Source decides control.
Identify
Source.
Identify
Noise source.
- What is producing the noise? definition
- When does it occur? measurement
Level
Measurement.
Level
Noise level.
- How loud is it, and for how long? measurement
- How was it measured? provenance
Health Effects.
Noise harms health.
Hearing
Protection.
Hearing
Hearing protection.
- Is exposure above action values requiring protection? boundary
- Which protection is suitable? action
Well-being
Sleep and stress.
Well-being
Well-being.
- Is the noise disturbing sleep or health? boundary
- What do WHO guidelines suggest? provenance
Control Reduction.
Noise can be reduced.
Measures
Source, path, receiver.
Measures
Noise control.
- Which measures reduce noise at source, path or receiver? action
- How much reduction is expected? measurement
Complaints
Nuisance.
Complaints
Nuisance complaints.
- How can noise nuisance be reported? action
- To which authority? provenance
Signals Technical noise.
Noise obscures signals.
SNR
Signal-to-noise.
SNR
Signal-to-noise ratio.
- What is the signal-to-noise ratio? measurement
- How can it be improved? action
Senses
Disambiguation.
Senses
Other senses.
- Is acoustic noise or signal noise meant? boundary
- Which entry fits? action
What the second pass must settle
- Should noise types be separate entries?
- How should noise maps be linked?
- How should signal noise be split off?