帯域拡張装置、方法及びプログラム、並びに、電話端末

Title:

帯域拡張装置、方法及びプログラム、並びに、電話端末

Document Type and Number:

Japanese Patent JP5126145

Kind Code:

B2

Abstract:

A bandwidth extension apparatus can generate from an inputted speech signal a bandwidth-extended signal whose bandwidth is automatically adjusted according to the surrounding hearing situation by means of a parameter. The apparatus has a surrounding characteristic predictor for predicting the characteristic amount of the surrounding sound of the phone terminal on which the apparatus is installed; an adjustment amount predictor for comparing the characteristic amount with the parameter to predict the adjustment amount for the parameter; a speech characteristic predictor for predicting the characteristic amount of the inputted speech signal; and an adjustment amount determiner for determining an adjustment amount for updating the parameter based on the characteristic amount of the surrounding sound and the inputted speech signal.

Inventors:

Atsushi Tashiro
Hiromi Aoyagi

Application Number:

JP2009082690A

Publication Date:

January 23, 2013

Filing Date:

March 30, 2009

Export Citation:

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