Stereophonic sound system,申请号US19850697499-传众专利搜索

Stereophonic sound system

申请公布号：US4622689(A)

申请号：US19850697499

申请日期：1985.02.01

申请公布日期：1986.11.11

申请人：

HOBROUGH, GILBERT L.

发明人：HOBROUGH, GILBERT L.

分类号：H04S3/00;(IPC1-7):H04R5/00

主分类号：H04S3/00

摘要：A stereophonic sound system has the conventional components of a stereo pre-amplifier, to receive and amplify left and right audio signals, originating from left and right channel microphones, and feed left and right power amplifiers for left and right loudspeakers and additionally has left and right attack separator circuits (6+18, 8+20) connected to receive input audio signals from the pre-amplifier (70) and acting to separate the attack components from the steady-state components of the input audio signals, the steady-state components being fed to the left and right power amplifiers (42, 44) and the attack components being fed to an attack correlator (30) which compares the arrival times of the attack components from the left and right audio signals and calculates an azimuth angle corresponding to the point of origin (8) of the original sound, an attack distributor (40) is connected to the outputs of the correlator and distributes transient attack signals to one of a series of small power amplifiers (46, 48, 50, 52) which amplify the transient attack signal for a respective one of a series of high frequency speakers (58, 60 62, 64) arranged between the main left and right speakers (54, 56); by this means the attack portions of the original audio signals can be perceived by a listener as originating from points spread out between the main speakers, which points individually have a relation to the azimuth angle of individual sounds relative to the microphones.