Sony STR-DE475 Operating Instructions - Page 30

Enjoying Surround Sound Customizing Sound Fields By adjusting the surround parameters and the tone characteristics of the front speakers, you can customize the sound fields to suit your particular listening situation. Once you customize a sound field, the changes are stored in memory indefinitely (unless the receiver is unplugged for about two weeks). You can change a customized sound field any time by making new adjustments to the parameters. See the table on page 33 for the parameters available in each sound field. To get the most from multi channel surround sound Position your speakers and do the procedures described in "Multi Channel Surround Setup" starting on page 15 before you customize a sound field. Adjusting the surround parameters The SURR menu contains parameters that let you customize various aspects of the current sound field. The settings available in this menu are stored individually for each sound field. 1 Start playing a program source encoded with multi channel surround sound. 2 Press SURR. The button lights up and the first parameter is displayed. 3 Press MENU / to select the parameter you want to adjust. 4 Press MENU +/- to select the setting you want. The setting is stored automatically. Effect level (EFFECT) Initial setting : (depends on sound field mode) This parameter lets you adjust the "presence" of the current surround effect. Wall type Initial setting : WALL MID When sound is reflected off soft material, such as a curtain, the high frequency elements are reduced. A hard wall is highly reflective and does not significantly affect the frequency response of the reflected sound. This parameter lets you control the level of the high frequencies to alter the sonic character of your listening environment by simulating a softer (S) or harder (H) wall. • The wall type can be adjusted from WALL S. 1 ~ WALL S. 8 (soft) to WALL H. 1 ~ WALL H. 8 (hard) in 17 steps. • The midpoint WALL MID designates a nÂutral wall (made of wood). Reverberation Initial setting : REVB. MID Before sound reaches our ears, it is reflected (reverberated) many times between the left and right walls, ceiling, and floor. In a large room, sound takes more time to bounce from one surface to another than in a smaller room. This parameter lets you control the spacing of the early reflections to simulate a sonically larger (L) or smaller (S) room. • The reverberation can be adjusted from REVB. S. 1 ~ REVB. S. 8 (short) to REVB. L. 1 ~ REVB. L. 8 (long) in 17 steps. • The midpoint REVB. MID designates a standard room with no adjustment. 30