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An Efficient 30-Band Graphic Equalizeer Implementation for a Low-Cost DSP Processor

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Long finite-impulse response (FIR) filters are becoming more commonplace in audio processing. This paper presents an efficient method for creating FIR filter coefficients for a 30-band graphic equalizer with well-controlled magnitude and phase properties. By using this synthesis technique, along with an efficient FIR filter implementation, the entire 30-band equalizer can be implemented on a single DSP processor.

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AES - Audio Engineering Society