Skip to main content
padlock icon - secure page this page is secure

A Loudness-Level-Meter for Broadband and Pulse-Containing Sound

Buy Article:

$30.00 + tax (Refund Policy)

A measuring device is described, where all essential laws are considered by which the loudness, and therefore also the loudness level, is estimated by the auditory system. The instrument continuously shows the spectrum of the recorded sound on the screen of a cathode-ray tube; the physical scale of frequency is transformed into the critical-band function, the physical sound pressure into the specific loudness. The masking of sound components of high frequency by stronger components of lower frequency as well as the dynamic properties of the auditory system are simulated, guaranteeing respectively also the correct measurement of loudness and loudness level of pulse-containing sound. The instrument permits either the continuous observation of the loudness-critical-band-diagram of a varying sound or of the preservation of the “maximum-loudness-critical-band-diagram” of a single sound on the screen for a certain time. This offers the possibility of measuring correctly, short sound events happening but once. In four overlapping measuring ranges a dial gauge records the loudness over a range of 1 soneG to 400 soneG corresponding to a range of 40 phono to 125 phonG. The instantaneous value of the measured loudness can be registered by a level recorder as a function of time.

The dynamic properties of the instrument were examined with broadband noise pulses, the measuring accuracy by comparison with subjective measurements. The recorded value is in good agreement with the subjective values of loudness level. The error of measurement is less than ±3 phonG.

The instrument is portable; the mains as well as a 24 V battery may be used for its operation. It can be stored in the trunk of a large passenger car.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: January 1, 1966

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Online User License
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more