| 摘要 |
PURPOSE:To execute acoustic reproduction with the feeling of extent and presence in a wide range without limiting a listening position. CONSTITUTION:The sound image localization fixing processing of respective signals inputted by FIR filsters 5-1, 5-2, 5-3 and 5-4 is executed, the difference signal D(n) between a stereo and audio signal inputted by a subtractor 6-3 is obtained and the difference signal D(n) is delayed by delay equipments 13-1, 13-2, 13-3, 13-4, 13-5 and 13-6. The difference signal delayed by multipiers 14-1, 14-2, 14-3 and 14-4 is multiplied by prescribed coefficients + or -g1 and + or -g2, a result in the sound image localization fixing processing and the multiplied result of the multipliers are added by addresses 6-4, 6-5 and addition of the original stereo and audio signal is executed by signal adders 6-6 and 6-7 and the result is outputted. |
