Information generation method enabling objective enhancement of perceived timbre based on human three-dimensional body shape, and sound data processing device allowing intuitive and easy change of perceived sound impression

Abstract

A system acquires head-related transfer functions (HRTFs) obtained by emitting sound toward the head of an individual from multiple sound emission directions in an anechoic chamber, averages the plurality of HRTFs, and calculates a target response curve (TRC) for the individual, which is referred to as TPTRC, and which clarifies information related to sound timbre. The system generates TPTRC(W) by multiplying the TPTRC by each of different multipliers W, presents sounds conforming to the respective TPTRC(W) to individual, to prompt individual to select from among the sounds a preferred sound, storing the TPTRC(W) selected by individual as TPTRCadj. The system generates a generic TPTRCadj by averaging TPTRCadj stored for each of a plurality of different individuals. A sound data processing device superimposes the generic TPTRCadj on input sound data and outputs the processed sound data to a sound-emitting device such as earphones.

Dependencies are inferred from the claim text.