Parametric coding of speech spectra

How researchers see this paper

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Learning Filterbanks from Raw Speech for Phone Recognition (2017, background): “This would be especially interesting because, unlike arbitrary complex filters, analytic filters have a simple interpretation in terms of real-domain signal processing: taking the squared modulus of the convolution of a real signal with an analytic filter performs a sub-band Hilbert envelope extract”
GSVD-based optimal filtering for single and multimicrophone speech enhancement (2002, background): “Of course, this separation is only possible if the clean signal can be modeled with a low-rank model, which is a model that has often been attributed to clean speech [15], [16].”
Filterbank Design for End-to-end Speech Separation (2019, unknown): “Analytic filters [17] have this property.”