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AAERT CER Exam Questions With 100- Correct Answers Latest Updates 2024 Grade A+.
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AAERT CER Exam Questions With 100- Correct Answers Latest Updates 2024 Grade A+.
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1 AAERT CER Exam Questions With 100% Correct Answers Latest Updates 2024 Grade A+ Methods of audio recording - Correct Answer -Analog and digital Microphone - Correct Answer -Converts acoustical energy that is sound into electrical signal that can be delivered to either an analog or digital device Path of digital audio - Correct Answer -To change the analog signal to a digital signal it will need to pass through an analog to digital converter (digital mixer or A/D converter) Sample rate - Correct Answer -Number of samples taken each second when recording sound. (44.1 kHz, 48 kHz, et cetera) Bit rate - Correct Answer -the number of bits transferred or received per unit of time (usually 16 or 24 bits) Low sampling rate - Correct Answer -Approximation 2 High sampling rate - Correct Answer -Smooth Digital mixer or A/D converter - Correct Answer -The digital mixer, or A/D converter, will output the signal through one of a variety of connections such as USB, FireWire (IEEE 1394), serial, local computer bus, or Ethernet. Dynamic Microphone - Correct Answer -(Moving coil) - made up of diaphragm, a coil, and a magnet. As acoustical energy hits against the diaphragm, which is a flat plate at the front of the microphone, it causes the coil that is attached to it to move back an d forth over the top of the magnet. The movement of the coil over top of the magnet creates an electrical signal which travels through the wires within the microphone and eventually reaches your digital mixer or A/D converter. Condenser Microphone - Correct Answer -Consists of a front plate (diaphragm), back plate, and a 48 -volt power source. The front and back plate together create a capacitor. When acoustical energy hits the front plate of the capacitor, the distance between th e front and back plate changes. The gap between these two plates is electrically charged. This charge is created by either an internal battery source or an external power source referred to as phantom power. Should you use microphones with batteries? - Correct Answer -No. If a battery would die during use, you could have a gap in your recording, 3 and you would need to interrupt the event you are reporting to fix this problem. Digital mixers and A/D converters act as - Correct Answer -Phantom power source for condenser microphones Biggest difference between dynamic and condenser microphones - Correct Answer -The way by which acoustical energy is transformed into electrical energy, one assisted by an electrical source and the other by a magnet. Both are capable of facilitating a quality audio recording and are recommended for use in the field of digital reporting. Pickup pattern - Correct Answer -Set path in which a microphone will intercept sound Cardioid pickup pattern - Correct Answer -Unidirectional - heart -shaped pattern which reaches out from the diaphragm of a microphone. Beneficial for single voice located in front of mic while rejecting additional ambient room sound from behind the mic and lower sensitivity on the sides Omnidirectional pickup pattern - Correct Answer -Intercepts sound from all directions from its placement, meaning it captures sound equally from all directions. Beneficial for capturing multiple voices using only one microphone or when you have more speaker s than
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