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Signal Enhancement via Digital Signal Processing

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Signal enhancement describes attempts at approximating original musical signals from non-ideal recordings, In a novel processing method, a digitized audio signal is split into phase-linear, complementary narrow-band signals for individual processing prior to being re-emerged to form the enhanced output signal. A simple model indicates which SNR improvement may be achieved in terms of the original signal quality. The behavior of some signal enhancement algorithms is demonstrated both graphically and via digital recordings of digitally processed analog originals.

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AES - Audio Engineering Society