Patent ID: 7773755

Claim:
A reproduction apparatus comprising: inverse characteristics conversion means for converting the acoustic characteristics of an acoustic space into inverse characteristics thereof; reproduction means for reproducing music data; acoustic characteristics output means for outputting acoustic characteristics different from the acoustic characteristics of the acoustic space; adjustment means for adjusting the music data reproduced by the reproduction means on the basis of the inverse acoustic characteristics of the acoustic space converted by the inverse characteristics conversion means and the acoustic characteristics output from the acoustic characteristics output means; and output means for outputting the music data adjusted by the adjustment means to the acoustic space, wherein the adjustment means calculates a first transfer function (HLS) corresponding to a route from a left speaker of the output means to a left ear of a person in the acoustic space, a second transfer function (HLO) corresponding to a route from the left speaker of the output means to a right ear of the person in the acoustic space, a third transfer function (HRO) corresponding to a route from a right speaker of the output means to the left ear of the person in the acoustic space, and a fourth transfer function (HRS) corresponding to a route from the right speaker of the output means to the right ear of the person in the acoustic space, and the adjustment means adjusts the music data output from the left and right speakers of the output means by inputting a received signal corresponding to the left speaker to a first cross-talk cancelling section having a transfer function (CR) expressed by—HRO/HRS and adding an output of the first cross-talk cancelling section to a received signal corresponding to the right speaker, and by inputting the received signal corresponding to the right speaker to a second cross-talk cancelling section having a transfer function (CL) expressed by—HLO/HLS and adding an output of the second cross-talk cancelling section to the received signal corresponding to the left speaker.