CTPR 242 Fa11 '11 - Week 4

CTPR 242 Fa11 '11 - Week 4 - StrengthofAudioSignal

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Strength of Audio Signal - Mic level ~ 2 mV. Usually only the direct output of a  microphone. A mic pre-amplifier is needed to bring it  up to line level. - Line level ~ 1.2 V. Common in the field and in the  studio for all signals not directly out of the mic. - Speaker level ~ 4 V. Power amplifiers bring line level  up to this to drive speakers.
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PD-150
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PD-150 Audio Board
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Balanced vs Unbalanced Cables XLR – three conductors = balanced
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Balanced vs Unbalanced Cables RCA – two conductors = unbalanced
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Balanced vs Unbalanced Cables RCA – two conductors = unbalanced signal shield signal shield
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Balanced vs Unbalanced Cables - Unbalanced cables have only two  conductors: one for  signal, one for ground. - Balanced cables have three  conductors: two for  signal, one for ground. - In balanced cables, one signal conductor carries the  signal, the other carries its opposite. This allows the  receiver to reject any unwanted noise induced in the  cable.
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This note was uploaded on 12/23/2011 for the course CTPR 242 taught by Professor Holman during the Fall '08 term at USC.

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CTPR 242 Fa11 '11 - Week 4 - StrengthofAudioSignal

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