04. ROOM Flashcards
Sabine’s formula used to predict the reverberation time
RT60 = 0.049 V/a (for meters)
RT60 = 0.16 V/a (for feet)
Produce natural resonances that can be heard as a pleasant sensation or an annoying one
STANDING WAVES
It is also a type of absorption, but is specifically designed to absorb low-frequency energy
BASS TRAPPING
The scattering of sound energy using multi-faceted surfaces
DIFFUSION
Acoustic energy absorbers which are design to damp low frequency sound energy with the goal of attaining a flatter low frequency (LF) room response by reducing LF resonances in rooms
BASS TRAP
The two types of bass traps
- RESONATING ABSORBERS
- POROUS ABSORBERS
The combination of microphones, signal processors, amplifiers, and loudspeakers
SOUND REINFORCEMENT
Quantified as the absorption coefficient-the proportion not reflected
ABSORPTION
Quantified as the Sound Reduction Index (SRI, in dB)-a measure of the reduction in transmission
INSULATION
What does NRC stand for?
NOISE REDUCTION COEFFICIENT
What does SAA stand for?
SOUND ABSORPTION AVERAGE
For every doubling of the weight of the material, one can expect a 6 dB increase in the transmission loss
MASS LAW
Long frequency sounds have _____ wavelengths, and high frequency sounds have _____ wave lengths
LONG; SHORT
Is a sound or combination of sounds that forms or arises from a place, also refer to a performance of sounds
SOUNDSCAPE
Acoustic performance encompasses several issues, including these three
- SPEECH PRIVACY
- SPEECH INTELLIGIBILITY
- NOISE TRANSMITTANCE
