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Generalized Fractional-Octave Smoothing of Audio and Acoustic Responses

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A methodology is introduced for smoothing the complex transfer function of measured responses using well-established or arbitrary fractional-octave profiles, based on a novel time-frequency mapping framework. A corresponding impulse response, also derived analytically, has reduced complexity but conforms to perceptual princples. The relationship between complex smoothing and traditional power spectral smoothing is also discussed.

JAES Volume 48 Issue 4 pp. 259-280; April 2000
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