Method and apparatus for dynamically adjusting the spectral content of an audio signal
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United States of America Patent
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app pub date -
Jan 16, 2007
filing date -
Apr 22, 2006
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Abstract
An electronic circuit for dynamically adjusting the spectral content of an audio signal. The circuit includes a constant current source, a output buffer amplifier and a biased inductor for introducing controlled amplitude asymmetry. This apparatus thus can be arranged to process an audio signal so as to introduce a predictable and controllable harmonic distortion that is negligible at small signal amplitudes and increases progressively at larger signal amplitudes.
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