Sound Reinforcement questions and answers 100% verified.

Sound Reinforcement questions and answers 100% verified. One complete cycle of an acoustic pressure wave consists of one half-cycle of compression followed by one-half cycle of - correct action 1. is defined as "fluctuating waves of pressure is a physical medium - usually air." - correct answers.Sound or Acoustical Energy the ___ of air pressure fluctuation is called the frequency of the wave. - correct The unit used to express a sound wave's frequency - correct answers.Hertz (Hz The amount of time required for one complete cycle of a sound wave is called - correct d The physical distance covered by one complete cycle of a given frequency is called the - correct ength Since we know the speed of sound, give the formula used to calculate the answer to question 6 above. - correct answers.Wavelength = Speed of Sound/Frequency Define the term signal level - correct answers.The amplitude or strength of the wave Define "the phase of a signal - correct answers.The time relationship of a sound to a known time reference. If two identical waves are superimposed and are exactly (180˚) out of phase, what do we know about the resulting wave? - correct answers.It will be nulled out to zero With regards to audio systems, what is the purpose of an input transducer? - correct answers.To convert acoustical energy into electrical energy Give three examples of an input transducer - correct answers.Mics, Contact Pickups, Magnetic Pickups, Tape Heads, Phono Cartridge, Laser Pickup, Optical Pickup The purpose of an RIAA pre-amplifier is? - correct answers.Provide the necessary EQ correction so a turntable can be run into a mixer Which would typically require a larger mixing console, a sound reinforcement situation or a sound reproduction situation? - correct answers.Sound Reinforcement Give three examples of an output transducers used in audio systems - correct answers.Woofers, Midrange Speakers, Tweeters, Full-range Speakers, Subwoofers, Supertweeters, Monitor Speakers, Headphones. I am running 0.2 Amps (200 mA) through an 8 Ohm speaker. What is my voltage through the speaker? - correct answers.E = R • I so 1.6 Volts Using the same information from question 16, what is my power at the speaker? (I am running 0.2 Amps (200 mA) through an 8 Ohm speaker. What is my voltage through the speaker? ) - correct answers.P = I • E so 0.32 Watts (320 mW) Resistance is measured in ohms. What is the symbol used for ohms - correct answers.Ω Define the term "Frequency Response" - correct answers.The relationship between a device's input and output with regard to signal frequency and amplitude. The frequency ratio between any two musical tones one octave apart is - correct answers.2:1 Define the term "presence peak." - correct answers.A broad peak (3 to 6 dB) in a microphone's frequency response centered in the region of 2 kHz and 5 kHz. It has the effect of adding crispness and intelligibility to words. What would be the typical useful frequency range of a subwoofer? - correct answers.< 300Hz (typically <100 Hz) down to about 30Hz When it comes to speech, would it be acceptable to amplify it though a sound system with a frequency response of 300Hz to 1 kHz? Why or why not? - correct answers.Most of the consonants are above 1kHz so the voice through this sound system would be hard to understand. The highest fundamental frequency (pitch) produced by acoustic instruments (including the piano) - correct ximately 4 kHz The musical term "timbre" is how we describe the number and amplitude of a note's - correct nics, partials, overtones. What sort of connector is found on an industry standard mic cable? - correct answers.3 pin XLR