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Phase Modulation and Intermodulation in Feedback Audio Amplifiers

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The recently published theory on feedback-generated phase modulation is reviewed, and the magnitude of closed-loop phase nonlinearity is calculated for various amounts of open-loop amplitude nonlinearity. A measurement method for this effect is outlined, and typical measurement results are shown.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=12002

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AES - Audio Engineering Society