Yamaha RX V659 MCXSP10 Manual - Page 79

Sound field parameter ROOM SIZE P.ROOM SIZE S.ROOM SIZE SB ROOM SIZE SOUND FIELD PROGRAMS 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. Control range: 0.1 to 2.0 Level Level Level Sound source Time Source sound Early reflections Time Time LIVENESS S.LIVENESS SB LIVENESS Small value = 0.1 Large value = 2.0 Liveness. Surround and surround back 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 SOUND FIELD PROGRAMS 75