2. Microphone ANS >>> Converts acoustical energy that is sound into electrical
signal that can be delivered to either an analog or digital device
3. Path of digital audio ANS >>> 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)
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, 4. Sample rate ANS >>> Number of samples taken each second when recording
sound. (44.1 kHz, 48 kHz, et cetera)
5. Bit rate ANS >>> the number of bits transferred or received per unit of time
(usually 16 or 24 bits)
6. Low sampling rate ANS >>> Approximation
7. High sampling rate ANS >>> Smooth
8. Digital mixer or A/D converter ANS >>> 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.
9. Dynamic Microphone ANS >>> (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.
10. Condenser Microphone ANS >>> 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 the 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
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, an external power source referred to as phantom power.
11. Should you use microphones with batteries? ANS >>> No. If a battery would
die during use, you could have a gap in your recording, and you would need to
interrupt the event you are reporting to fix this problem.
12. Digital mixers and A/D converters act as ANS >>> Phantom power source
for con- denser microphones
13. Biggest difference between dynamic and condenser microphones ANS
>>> 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.
14. Pickup pattern ANS >>> Set path in which a microphone will intercept sound
15. Cardioid pickup pattern ANS >>> Unidirectional - heart-shaped pattern which
reaches out from the diaphragm of a microphone. Beneficial for single voice
located in front
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