WVUncovered: Recording Theory

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WVUncovered Recording Theory
Sound generation
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WVUncovered Recording Theory
Dynamic microphone needs no batteries
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WVUncovered Recording Theory
Condenser microphone needs batteries or phantom
power
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WVUncovered Recording Theory
Microphone sensitivity
Omnidirectional
Cardioid
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WVUncovered Recording Theory
Microphone sensitivity
Hypercardioid
Cardioid
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WVUncovered Recording Theory
Microphone sensitivity
Shotgun of supercardiod
Cardioid
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WVUncovered Recording Theory
Microphone sensitivity
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WVUncovered Recording Theory
Sampling rate 44.1 kHZ (cycles per
second) Twice the highest frequency that a
healthy human can hear (22 kHZ)
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WVUncovered Recording Theory
Bit depth (number of divisions per sample).
Greater bit depth provides smoother, more
accurate sound. 16 bits is the professional radio
standard.
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WVUncovered Recording Theory
Graphic representation of sound in Audacity
editing program
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WVUncovered Recording Theory
VU (analog) and Digital meters register average
recording levels
-12 dB digital with peaks no greater than 0 dB
0 dB analog is standard
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WVUncovered Recording Theory
Clipping means the peaks of sound curves are cut
off making recordings sound harsh and highly
irritating
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WVUncovered Recording Theory
Clipping in an audio editing program
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WVUncovered Recording Theory
Cables, connectors and plugs make sure you have
the right ones
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WVUncovered Recording Theory
Cables, connectors and plugs
Balanced XLR cables. The standard for
professional sound support public address,
musicians, radio TV. Heavy duty, locking
connectors, free from interference over long
distances.
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WVUncovered Recording Theory
Cables, jacks and plugs
1/4 jacks
TRS (tip-ring-sleeve) balanced cable. Has two
conductors plus ground. Same as XLR cable but
with 1/4 plugs. Can run long distances.
TS (tip-sleeve) cable with 1/4 plug. Has two
conductors but no ground, for short distances
only.
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WVUncovered Recording Theory
Cables, jacks and plugs
Miniature stereo phone plugs Standard connectors
for computer and portable audio components
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WVUncovered Recording Theory
RCA (home stereo) cables, jacks and plugs. One
conductor plus ground. Keep as short as possible.
RCA jacks
1/8 stereo jack (female) to two RCA monaural
plugs (male).
1/8 stereo plug (male) to RCA jack (female).
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WVUncovered Recording Theory
Cables, connectors and plugs
Mixer inputs 4 XLR mic input jacks (right), 5
RCA audio component jacks (center), 1 XLR (male)
mic output plug plus 1 RCA output jack (left)