SOUND FIELD ADJUSTMENT DEVICE

摘要

Provided is a sound field adjustment device which can be applied to, for example, a device for adjusting a sound field in a vehicle. The sound field adjustment device reproduces a signal from a plurality of speaker pairs arranged in an acoustic space. Further, the sound field adjustment device supplies a signal to the plurality of speakers; provides a delay having different delay amounts for respective frequency bands to a signal supplied at least to a proximity speaker pair which is a speaker pair closest to a listening position, among the plurality of speakers; and provides a delay having a constant delay amount regardless of the frequency bands to speaker pairs other than the speaker pair to which the delay having different delay amounts for respective frequency bands has been provided. In this case, the sound field adjustment device does not perform level adjustment, and the sound field adjustment is performed by only adjusting the delay amounts. Therefore, deterioration of sound pressure balance at the position other than the listening position, caused by adjusting the sound pressure balance at the listening position, can be avoided, and further, the sound pressure balance at the listening position can be improved.