BROAD FA2

Sound waves reflected at a convex surface are diminished.

• True

• False

A concert hall contains 3000 customary sabins of absorption (279 metric sabins). Its reverberation time in seconds is 2.23. What is its interval volume in meters?

• 3684.14 m^3

• 2674.14 m^3

• 3862.41 m^3

• 3864.41 m^3

The equation governing the decay of uniformly diffuse sound in a live room form an average absorption less than or equal to 0.2.

• Stephen and Bate Equation

• Sabine Equation

• Norris-Eyring Equation

• Norris Equation

Calculate the Norris-Eyring reverberation time of uniformly diffused sound in a live room if the average absorption is 0.65 and the reverberation time is 1.23 seconds.

• 1.172 secs

• 1.117 secs

• 1.217 secs

• 1.271 secs

It refers to the temporal patterns of relfections reaching the listener.

• Brilliance

• Blend

• ensemble

• texture

A condenser microphone's operation is based on

• Reactance

• Inductance

• Capacitance

• Resistance

It describes the output of a microphone over a range of frequencies.

• Directivity

• Sensitivity

• Frequency Response

• All of the above

Sealed cabinet in the enclosure design of loudspeakers is also known as

• Acoustic Suspension

• Folded Baflfle

• Bass reflex

• Double radiator

_____ microphones offer the purest form of transduction.

• Ribbon-type

• Condenser

• Dynamic

• Parabolic

It can be achieved by simply cutting a hole in a sealed cabinet enclosure.

• Ported Cabinet

• Infinite baffle

• Folded baffle

• Sealed baffle