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11 lines
614 B
11 lines
614 B
one use of an x/y mode of scope (vectorscope)
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Audio
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In audio applications, a vectorscope is used to measure the
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difference between channels of stereo audio signals. One stereo
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channel drives the horizontal deflection of the display, and the other
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drives the vertical deflection. A monaural signal, consisting of
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identical left and right signals, results in a straight line with a
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gradient of +1. Any stereo separation is visible as a deviation from
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this line, creating a Lissajous figure. If a straight line appears
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with a gradient of −1, this indicates that the left and right channels
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are 180° out of phase.
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