Introduction to Digital Filters: with Audio Applications

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Perceptual Importance of the Phase Related Information in Speech (2012, methodology): “Instead, prior to the RPS analysis, we convert the phases of the spectrum of every analysis frame to minimum phase using a cepstrum based non-parametric method [12].”
Universal quantum control through deep reinforcement learning (2018, methodology): “Without affecting the Markovianity of the control problem while limiting the frequency components of the control, we choose to apply a two pole normalized double exponential smoothing filter [42] to the proposed control”