Sound Reinforcement Final questions and answers 1005 guaranteed success.

Sound Reinforcement Final questions and answers 1005 guaranteed success. What Frequency bands are illegal to operate in? - correct answers.700-799mHz What is Squelch - correct it function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal (noise gate) What is diversity receiving? - correct answers.Has 2 antennae and has a sensor that detects which antennae picks up the strongest signal from the right antennae What is the difference between limiting and Compressing and where is it appropriate to use each? - correct answers.Limiter is a compressor that has a 10:1 or greater ratio. Stops the audio. Compressors are pushed by the audio signal more. Uses: Limiters-use on PA system to avoid clipping Compressors- reduce dynamic range and use on vox, bass, etc. What is a side-chain input on a compressor? What are examples of how it is used? - correct answers.Input to circuit that controls the gain reduction of circuit and allows external audio source to control that circuit. When a speaker is talking over music, the music will turn down every time the speaker speaks so that his/her voice can be heard more. What is a gate? - correct answers.Mutes the signal of audio until the signal surpasses the threshold What is the advantage of using a stereo input channel over a reverb return? - correct answers.You can EQ it, send it back out to wedges, frees up AUX sends Notch Filter (band stop) - correct ts a specific band of frequency and turns it down. Has a Hi-Q. Used to remove feedback by using a parametric EQ Graphic EQ's - correct answers.2 Types: Combining and non Combining. Number of octaves present, generally 31 band EQ's. Used in monitors, mains, or any type of speaker. Parametric EQ - correct des both sweepable center frequencies and adjustable Q, as well as boost / cut controls Semi Parametric - correct des control of the amplitude and frequency, but uses a pre-set bandwidth of the center frequency Non Parametric (fixed Band) - correct answers.... LPF - correct -pass filter; passes low-frequency signals and attenuates signals with frequencies higher than the cutoff frequency... BPF - correct -pass filter; passes frequencies within a certain range and attenuates frequencies outside that range HPF - correct -pass filter; passes high-frequency signals but attenuates signals with frequencies lower than the cutoff frequency Attack - correct d when the compressor is decreasing gain to reach the level that is determined by the ratio Release - correct d when the compressor is increasing gain to the level determined by the ratio, or, to zero dB, once the level has fallen below the threshold Threshold - correct in dB point at which a compressor reduces the level of an audio signal if its amplitude exceeds that point Ratio - correct answers.For every amount of decibel that is put in, a certain amount is sent out. Ratio of 4:1 means for every 4 dB put into the compressor, 1 dB is sent back out. Make-up Gain - correct answers.Restores the gain that is lost during compression Personal PA - correct system for small venues or for personal use Fixed Installation - correct answers.PA system that is permanently nstalled into a venue Distributed systems - correct answers.Speakers that are spread through a venue, like a football arena. Headroom - correct amount by which the signal-handling capabilities of an audio system exceed a designated level Distortion (and Harmonic Distortion) - correct e in a waveform from its original state. Crest Factor - correct re of a waveform, such as alternating current or sound, showing the ratio of peak values to the average value Gain before Feedback - correct answers.The amount of gain a system can handle before the monitors feedback. Each mic on stage loses 3 dB NL2 - correct on connector with 2 leads NL4 - correct on connector 4 leads NL8 - correct on connector 8 leads flanging (delay time) - correct answers.1ms-10ms chorusing (delay time) - correct answers.6ms-12ms phase (delay time) - correct answers.... Balanced Cable - correct ins two identical wires, which are twisted together and then wrapped with a third conductor (foil or braid) that acts as a shield Drive Rack - correct answers.Center for EQ, Crossovers, Amplifiers, etc. 13.5 pg 212 - correct answers.... Active Crossover - correct answers.Able to change the parameters more readily Passive Crossover - correct answers.Cannot change the parameters easily and it eats up power 2-way, 3-way, 4-way series - correct answers.2-way: consists of a low-pass and a high-pass filter 3-way: constructed as a combination of low-pass, band-pass and high-pass filters (LPF, BPF and HPF respectively) 4-way: constructed as a combination of low-pass, band-pass and high-pass filters (LPF, BPF and HPF respectively) Bass reflects - correct answers.... Passive radiators - correct ly contains an "active driver" (or main driver), and a passive radiator Aux driven subs - correct answers.Running your Subs off of an AUX Send Feedback Control (delay) - correct many time the signal repeats VU - correct answers.Volume Unit +4dBu de-esser - correct to remove syllabance from a track Inverse Square Law - correct doubling of distance away reduces the sound by 6dB