AAERT CER Exam questions with answers graded A+

AAERT CER Exam 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 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 and 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.