Soundproofing
  • 1-3 Octave Band Filters Single 1-1 Octave bands divided into three parts.
  • 1-1 Octave Band Filters A division of the frequency range into bands, the upper frequency limit of each band being twice the lower frequency limit.
  • A WEIGHTING
  • A-B test
  • Absorb
  • Absorption
  • Absorption coefficient
  • ACOUSTICS
  • ACOUSTICAL
  • ACOUSTICAL ANALYSIS
  • ACOUSTICAL CONSULTANT
  • ACOUSTICAL ENVIRONMENT
  • AIRBORNE SOUND
  • ARCHITECTURAL ACOUSTICS
  • ARTICULATION CLASS
  • ARTICULATION INDEX (AI)
  • ABSORPTION
  • AREA EFFECT
  • ASSISTIVE LISTENING DEVICE
  • ATTENUATION
  • A WEIGHTING
  • AMBIENT NOISE/SOUND
  • AUDIOLOGIST
  • ABSORPTION
  • ABSORPTION COEFFICIENT
  • AC3
  • ACOUSTIC CALIBRATOR
  • Acoustic impedance
  • Acoustic material
  • ACOUSTICS
  • ACOUSTIC TRAUMA
  • AES
  • AIRBORNE SOUND
  • Airflow resistance, R
  • Airflow resistivity
  • Alcons
  • Ambience
  • AMBIENT NOISE
  • Amplitude
  • Analog
  • Anechoic
  • Anechoic chamber
  • ANECHOIC ROOM
  • ANSI
  • Articulation
  • ARTICULATION INDEX (AI)
  • Attention to the detail
  • Artificial reverberation
  • Arithmetic mean sound pressure level
  • ASA
  • Attack
  • ATTENUATION
  • AUDIO FREQUENCY
  • AUDIOGRAM
  • AUDIOMETER
  • A-WEIGHTED SOUND LEVEL
  • A-weighted sound pressure level
  • A-frequency weighting [2]
  • average sound pressure level in a room
  • BACKGROUND NOISE
  • background noise total
  • BAND
  • BAND PASS FILTER
  • band pressure level
  • bel
  • BROADBAND NOISE
  • broad-band noise
  • BACKGROUND NOISE
  • BAFFLE
  • BARRIER
  • BEL
  • BOOMINESS
  • C Weighting
  • CE Marking
  • CALIBRATOR (ACOUSTICAL)
  • COCHLEA
  • compressional wave
  • complex tone
  • continuous spectrum
  • CLOUD
  • COCKTAIL PARTY EFFECT
  • COCHLEA
  • CYCLE
  • CYCLES PER SECOND
  • CUTOFF FREQUENCIES
  • CYCLE CUTOFF
  • CYCLES PER SECOND
  • CYLINDRICAL WAVE
  • Data Logging
  • dB(A)
  • dB(C)
  • dB(Z)
  • dead room
  • Decibel (dB)
  • decay rate
  • DIN 45641
  • % Dose
  • DAMPING
  • dBA
  • dB(A)
  • DECIBEL
  • diffracted wave
  • DAMPING
  • DECIBEL (dB)
  • DEFLECTION
  • DEAF
  • DIFFUSION
  • DIFFRACTION
  • diffraction process
  • diffuse sound field
  • direct sound field
  • DIRECTIVITY INDEX
  • discrete tone
  • displacement
  • DOPPLER EFFECT (DOPPLER SHIFT)
  • DOSIMETER
  • duct lining
  • earplug
  • earmuff
  • ECHO
  • echo waveform
  • EAR
  • ECHO
  • ECHO FLUTTER
  • EQUAL LOUDNESS CONTOURS
  • effective sound pressure
  • EQUIVALENT A-WEIGHTED SOUND LEVEL (Leq)
  • Exposure
  • FAR FIELD
  • Fast Time Weighting
  • FILTER
  • FLAME SPREAD
  • FLANKING
  • FREE FIELD
  • FREQUENCY
  • FREQUENCY ANALYSIS
  • filter nominal midband frequency
  • Flanking transmission
  • flanking sound transmission
  • fluctuating noise
  • free progressive wave
  • free field. Field in a homogeneous, isotropic medium free from boundaries.
  • Free field region
  • FREE SOUND FIELD (FREE FIELD)
  • FREQUENCY
  • frequency amplitude
  • frequency weighting
  • fundamental
  • fundamental frequency
  • HAIR CELL
  • HARMONIC
  • HEARING
  • HEARING LEVEL
  • HEARING LOSS
  • hearing protector
  • HEARING THRESHOLD LEVEL (HTL)
  • Helmholtz resonator
  • hemi-anechoic room
  • HEARING IMPAIRMENT
  • HEARING RANGE
  • HERTZ (Hz)
  • HERTZ (Hz)
  • IEC 60804
  • IEC 61672
  • IEC 60651
  • IEC 61260
  • Impulse Time Weighting
  • Integrating Averaging Sound Level Meter
  • IMPACT SOUND
  • INTENSITY
  • INVERSE SQUARE LAW
  • IMPACT INSULATION CLASS (IC)
  • IMPACT SOUND
  • IMPULSIVE NOISE
  • INFRASONIC
  • infrasonic frequency coefficient
  • instantaneous sound pressure
  • integrating-averaging sound level meter
  • INTENSITY
  • intermittent noise
  • INVERSE SQUARE LAW
  • ISO
  • isolated burst of sound energy
  • Integrating Averaging Sound Level Meter
  • LA10
  • LA10
  • LA90
  • LA90
  • LAE
  • LIVE END/DEAD END
  • LOUDNESS
  • LAeq,t
  • LAF
  • LAFmax
  • LAFTeq
  • LAI
  • LAImax
  • LAS
  • LASmax
  • LCE
  • Lceq,t
  • LCF
  • LCFmax
  • LCI
  • LCImax
  • LCpeak
  • LCS
  • LCSmax
  • LEP,d
  • Leq
  • LIeqT
  • Ln
  • LZE
  • LZeq,t
  • LZF
  • LZFmax
  • LEVEL
  • level average
  • line spectrum
  • live room
  • LOGARITHM
  • longitudinal wave
  • LOUDNESS
  • Loudness test
  • LOUDNESS LEVEL
  • MASKING
  • MASKING NOISE
  • MEDIUM
  • MASKING SOUND
  • MASS
  • MOUNTING
  • narrow-band noise
  • NEAR FIELD
  • NIOSH
  • NOISE
  • noise emission
  • noise immission
  • noise induced temporary threshold shift. Temporary hearing loss resulting from exposure to noise. Abbreviation, NITTS.
  • noise induced permanent threshold shift
  • NOISE
  • NOISE CRITERIA (NC)
  • NOISE ISOLATION CLASS (NIC)
  • NOISE REDUCTION (NR)
  • NOISE REDUCTION COEFFICIENT (NRC)
  • NOISE ISOLATION CLASS. (NIC)
  • NOISE LEVEL
  • noise power emission level
  • NOISE REDUCTION (NR)
  • NR (noise reduction)
  • NOISE REDUCTION COEFFICIENT (NRC)
  • NRC (noise reduction coefficient)
  • Noise Rating Curves
  • NON-IMPULSIVE NOISE
  • non-steady noise
  • OCTAVE
  • octaves
  • OCTAVE BAND
  • OCTAVE BAND LEVEL
  • OSCILLATION
  • OSHA
  • Overload
  • OCTAVE BANDS
  • OTO
  • OTOLOGIST
  • OTOLARYNGOLIST
  • particle velocity
  • Peak
  • PEAK SOUND PRESSURE
  • PSP (peak sound pressure). Greatest value of the absolute instantaneous sound pressure within a specified time interval. Unit, pascal (Pa).
  • peak-to-peak value
  • PERIOD
  • periodic
  • periodic quantity
  • PERMANENT THRESHOLD SHIFT (PTS)
  • PHON
  • PINK NOISE
  • PITCH
  • PLANE WAVE
  • plane waveform
  • power spectrum density
  • point source
  • porous sound absorber
  • PHON
  • PITCH
  • PRESBYCUSIS
  • PRESBYCUSES
  • PURE TONE
  • pure tonic
  • quasi-impulsive noise
  • RANDOM NOISE
  • random incidence
  • REFLECTION
  • REFRACTION
  • refraction angle
  • RESONANCE
  • REFLECTION
  • RESONANCE
  • RESONANT FREQUENCY
  • REVERBERATION
  • REVERBERATION TIME
  • RESONATOR
  • REVERBERANT FIELD
  • REVERBERATION
  • reverberation dwell
  • REVERBERATION ROOM
  • REVERBERATION TIME (RT)
  • reverberation shift time
  • reverberation room
  • RMS SOUND PRESSURE
  • room absorption
  • ROOT-MEAN-SQUARE (RMS)
  • SABIN
  • Sabine absorption
  • SEL Sound Exposure Level
  • simple harmonic quantity
  • simple harmonic motion
  • signal
  • Simple Sound Source
  • Slow Time Weighting
  • sound field
  • Sound Level
  • Sound Level Meter
  • SPL
  • sound power level. Logarithm of the ratio of a given sound power in a stated frequency band or with a stated frequency weighting, to the reference power of one picowatt (1 pW). Unit, bel (B); symbol, LW.
  • sound pressure level
  • SABIN
  • SABINE FORMULA
  • SEPTUM
  • SIGNAL TO NOISE RATIO
  • SMOKE DEVELOPED INDEX
  • SOUND
  • SOUND ABSORPTION
  • SOUND ABSORPTION COEFFICIENT
  • SOUND BARRIER
  • SOUND LEVEL
  • SOUND PRESSURE
  • SOUND PRESSURE LEVEL
  • SOUND PROOFING
  • SOUND LEVEL METER
  • SPEECH
  • SPEECH PRIVACY
  • SOUND TRANSMISSION CLASS (STC)
  • SPECTRUM´s components of frequency and amplitude.
  • Statistical Analysis
  • SHIELDING
  • silencer
  • SONE
  • SOCIOCUSIS
  • SOUND
  • sound absorption
  • sound absorption coefficient
  • sound energy
  • sound-energy flux
  • sound exposure
  • sound exposure level
  • sound intensity
  • sound intensity direction
  • sound intensity level
  • SOUND LEVEL
  • SOUND LEVEL METER
  • sound level meter
  • SOUND POWER
  • sound power watts
  • sound power level
  • SOUND PRESSURE
  • sound pressure amplitude [2]. Absolute value of the instantaneous pressure. Unit, pascal (Pa).
  • SOUND PRESSURE LEVEL (SPL)
  • SOUND TRANSMISSION CLASS (STC)
  • SOUND TRANSMISSION LOSS (STL)
  • SPECTRUM
  • Sound Reduction Index ( SRI )
  • spectrum
  • spectrum density
  • spectrum analyzer
  • specular reflection
  • spherical wave
  • Sound Frequency
  • Site Conditions
  • SPEECH-INTERFERENCE LEVEL (SIL)
  • SPEED (VELOCITY) OF SOUND IN AIR
  • speed of sound
  • SPHERICAL DIVERGENCE
  • SPHERICAL WAVE
  • STEADY-STATE SOUNDS
  • standing wave
  • static pressure
  • steady noise
  • structure-borne sound
  • subharmonic
  • TEMPORARY THRESHOLD SHIFT (TTS)
  • THIRD-OCTAVE BAND
  • THRESHOLD OF AUDIBILITY (THRESHOLD OF DETECTABILITY)
  • THRESHOLD OF DETECTABILITY
  • TIME WEIGHTED AVERAGE (TWA)
  • Threshold of Hearing
  • THRESHOLD OF PAIN
  • THRESHOLD SHIFT
  • TIMBRE
  • TINNITUS
  • TONE
  • TRANSDUCER
  • transmission loss
  • transverse wave
  • Type 2 sound meter
  • Type 1 sound meter
  • ULTRASONIC
  • ultrasonic frequency
  • ULTRASOUNDS
  • Under Range
  • VIBRATION
  • VIBRATION ISOLATOR
  • VIBRATION
  • VIBRATION ISOLATOR
  • VOLUME
  • WAVE
  • WAVELENGTH
  • wavefront
  • WAVELENGTH
  • WEIGHTING
  • WHITE NOISE
  • WINDSCREEN
  • Z Weighting ±1.5dB excluding microphone response.