Yamaha RX V661 MCXSP10 Manual - Page 68

Advanced sound configurations Sound field parameter ROOM SIZE P.ROOM SIZE S.ROOM SIZE SB ROOM SIZE Features Room size. Presence, surround, and surround back room size. Adjusts the apparent size of the surround sound field. The larger the value, the larger the surround sound field becomes. As the sound is repeatedly reflected around a room, the larger the hall is, the longer the time between the original reflected sound and the subsequent reflections. By controlling the time between the reflected sounds, you can change the apparent size of the virtual venue. Changing this parameter from one to two doubles the apparent length of the room. y When you adjust the room size parameters, we also recommend adjusting the corresponding initial delay parameters likewise. This adjustment is especially effective for the CINEMA DSP programs. Control range: 0.1 to 2.0 Source sound Early reflections Level Level Level Time Time Time Sound source LIVENESS S.LIVENESS SB LIVENESS Small value = 0.1 Large value = 2.0 Liveness. Surround and surround back sound field liveness. Adjusts the reflectivity of the virtual walls in the hall by changing the rate at which the early reflections decay. The early reflections of a sound source decay much faster in a room with acoustically absorbent wall surfaces than in one which has highly reflective surfaces. A room with acoustically absorbent surfaces is referred to as "dead", while a room with highly reflective surfaces is referred to as "live". This parameter lets you adjust the early reflection decay rate and thus the "liveness" of the room. Control range: 0 to 10 Source sound Live Dead Level Level Level Time Time Time Small reflected sound Small value = 0 Large reflected sound Large value = 10 64 En