Yamaha RXV1065 Owner's Manual - Page 54

INTRODUCTION PREPARATION BASIC OPERATION Editing surround decoders/sound field programs Level Level Level Level Note • This setting is available only when "Extra Speaker Assignment" is set to "Presence" (page 56). Sound field parameters for advanced configurations ■ Parameters for adjusting early-reflected sound Initial Delay / P. Initial Delay / Sur. Initial Delay / Sur. Back Initial Delay Adjustable range: 1 to 99ms (Initial Delay / P. Initial Delay), 1 to 49ms (Sur. Initial Delay / Sur. Back Initial Delay) Adjusts attenuation characteristics of early-reflected sound. You can create a lively sound field (with a high reverberant sound level) as you increase the value, and a dead sound field (with a low reverberant sound level) as you decrease the value. Creating either a lively sound field or a dead sound field in an actual music hall is determined by the acoustic absorption characteristics of reflection surfaces. A dead sound field is created when the attenuation time is short while a lively sound field is created when the attenuation time is long. Original source sound Early-reflected sound Delay Time Sound source Delay Time Reflecting Small = 1ms Large = 99ms y • We recommended that you adjust the size of corresponding sound field when you adjust the delay time. ■ Parameters for specifying room size Room Size / P. Room Size / Sur. Room Size / Sur. Back Room Size Adjustable range: 0.1 to 2.0 Produces different senses of sound expansion according to room sizes specified. In a large size room such as a music hall, the duration from when reflected sound is heard until when the next reflected sound is heard is long. Thus, different senses of sound expansion can be created by changing the duration. 1.0 is the original room size. When this parameter is set to 2.0, each side of the room is defined as twice larger than the original room size. Level Level Time Sound source Source sound Early Time Small = 0.1 Large = 2.0 ■ Parameters for defining attenuation characteristics of early-reflected sound Liveness / P. Liveness / Sur. Liveness / Sur. Back Liveness Adjustable range: 0 to 10 Adjusts the attenuation of reflected sound. You can create a lively sound field (with a high reverberant sound level) as you increase the value, and a dead sound field (with a low reverberant sound level) as you decrease the value. Creating either a lively sound field or a dead sound field in an actual music hall is determined by the acoustic absorption characteristics of reflection surfaces. A dead sound field is created when the attenuation time is short while a lively sound field is created when the attenuation time is long. Dead Source sound Live Time Time Small reflected sound Small = 0 Large reflected sound Large = 10 ADVANCED OPERATION ADDITIONAL INFORMATION APPENDIX English 51 En