Sound Reinforcement 1 Final Exam questions and answers 100% verified.

Sound Reinforcement 1 Final Exam questions and answers 100% verified. Decreases - correct answers.When frequency increases wavelength _____________ Front of House - correct the term used to refer to the equipment or resources whose primary function is to provide audio coverage to the main audience area. Touring PA - correct answers.A line array is more commonly used in which type of PA system? intelligibility, fidelity, power, and controllability - correct ry requirements for a sound system? Power Alley - correct answers.The line between two speakers when both are in phase True - correct answers.T/F When referring to reverberation, early reflections are sounds that arrive within the first 80ms of the direct sound and add to the perceived loudness of the sound. heat - correct answers.Energy absorbed by acoustic panels is released as ______ False - correct answers.T/F It is easier to absorb low frequency sounds than it is to absorb high frequency sounds. Toeing in - correct answers.How to reduce the effects of early reflections from side walls when placing loudspeakers in a room? False - correct answers.T/F A good way to quickly assess the early reflective properties of a room is to excite the acoustics of the room by whistling. Diffusion - correct the energy of a sound is propagated in many directions by an irregularly shaped object. Diffraction - correct change of direction of travel of sound waves caused by the interaction with an object. Reflection - correct striking of a sound against a large flat object that propagates the energy at an angle equal to the angle of incidence. Pink noise - correct answers.What type of noise signal, that is equal energy per octave, is most commonly used to assess speaker performance? time - correct answers.Phase describes the _____ relationship between two wave cycles. 2 and 3 - correct answers.Phantom Power is 48 volts of power supplied through the microphone cable on pins... Proximity effect - correct answers.An increase in the low frequency response of a microphone as a user moves very close to the diaphragm is the definition of... frequency range - correct answers.The________ of a microphone describes the highest and lowest frequencies a microphone responds to frequency response graph - correct how sensitive the mic is at different frequencies. 600 ohms - correct answers.In general, a low impedance microphone is less than... diaphragm mass - correct answers.The sensitivity of a microphone directly relates to its... monitor world - correct answers.The location from which the speakers located on the stage for the musicians is mixed. false - correct answers.T/F A stage plot shows the location of the Main PA's Left and Right speakers. feedback - correct answers.What is likely to happen when someone cups a microphone diversity - correct answers.____is used to prevent dropouts caused by radio cancelations at the antennas when using wireless microphones. 1/2 - correct answers.For wireless microphones it is best practice to separate the antenna by a minimum of ______wavelength. ORTF - correct a stereo near coincident technique using two cardioid microphones placed at a 110 degree angle. cardioid - correct answers.What mic(s) best rejects sound from the back? omnidirectional - correct answers.What mic is not subject to proximity effect? condenser - correct answers.Which microphone type requires a small built-in amplifier to amplify the voltage fluctuations from a sound source before it is sent to the mixer? dynamic and condenser - correct answers.What are the most common types of microphones in live sound reinforcement? impedance - correct the total opposition that an electronic device gives to alternating current. condenser - correct answers.Since vocal ensembles are spread out over a larger area it is typically best to use two _____ microphones because of their sensitivity. false - correct answers.T/F An Unbalanced cable uses three conductors while a balanced cable only uses two conductors. common mode rejection - correct answers.Splitting a signal into two copies and inverting one copy while being transmitted through a cable in an effort to prevent signal interference describes: RFI - correct answers.Interference created by radio signals. EMI - correct answers.Interference created by electrical signals or fields. cross talk - correct answers.When an audio signal induces current into a cable lying next to it. foil - correct answers.Which type of cable shielding is used for permanent installations? True - correct answers.T/F Speaker wire has two conductors but no shielding is needed. pin 1 - correct answers.Shield/ ground pin 2 - correct answers.Hot + pin 3 - correct - powered - correct answers.A _______ mixer is a mixer with the speaker's amplifier built into it. monitor outputs - correct answers.A line level, and typically pre-fader output used to feed headphones and/or a speaker on the stage for the band. auxiliary sends - correct answers.An output that sends various combinations of the input signals to off-board processing equipment. stereo channel - correct answers.Two mono channels that typically only accept line level inputs, and are managed by one set of controls. VCA - correct answers.A fader that controls signal levels at multiple channels with a voltage, but never actually combines the audio onto one shared electrical conductor busses or subgroups - correct answers.A shared electrical conductor for multiple audio signals to be mixed together, then accessed and processed from a single channel. insert cable - correct answers.To place an EQ, compressor, or other external audio device onto a channel on my mixer I need to use a... False - correct answers.T/F In order to split an audio signal to two mixers, a passive or Y splitter is used to prevent noise from increasing on our microphone signal. Equivalent input noise - correct important because it measure the noise created at each channel's preamp. If it is too high the console will have a large amount of noise when adding each channel together at the main outputs. AFL - correct answers.Allows the engineer to listen to the audio from a channel with relative mix and panning levels in his/her headphones. XLR, TRS line, TRS insert - correct answers.A typical mono channel input will have all of the following input jacks. all pass filter - correct answers.An ___ is an EQ that leaves all frequencies in tact but allows us to manipulate the phase of our audio signal. constant-Q - correct answers.___ is a graphic EQ where the bandwidth of each filter does not change when the slider is moved. infinity to one - correct answers.A compressor set to have "brick wall" limiting will have a ratio of... latency - correct answers.Digital processing is a serial process of several discrete steps where each step takes a small amount of time to complete. This amount of time is known as _____. 1/3 of an octave at maximum boost - correct answers.When using an 31 band graphic EQ, the frequency band filters adjust ____. impulse response - correct answers.The ____ of a room gives us information about the intensity of reflections, or reverberation, inside the space. Q, frequency, gain - correct eters of a parametric EQ False - correct answers.T/F When a compressor has a high ratio and long release time you may hear the level of the audio rise and fall. This effect is called breathing. false - correct answers.A chorus effect needs to do two crucial things, delay a copy of the signal and add a flanging effect into that copy. parallel - correct answers.When "Daisy Chaining" speakers together you are actually hooking up the speakers in B - correct answers.A class __ amplifier will more than likely never be used in live sound because the amplifier creates a crossover distortion ITU-R-468 - correct answers.When considering an Amplifier's signal to noise ratio, an engineer must take note of the weighting system used to measure the noise. If a ______ is