Yamaha DSP-AX620 Sound Field Parameter Descriptions, ■ROOM SIZE, ■INIT.DLY (initial delay), (P.INIT.DLY — for the presence sound field), 0.1 –, Function:, Function:

SOUND FIELD PROGRAM PARAMETER EDITING

Sound Field Parameter Descriptions

You can adjust the values of certain sound field parameters so the sound fields are recreated accurately in your listening room.

Note

•Not all of the following parameters can be found in every program.

■INIT.DLY (initial delay)(P.INIT.DLY — for the presence sound field)

Function:	This parameter changes the apparent distance from the sound source by adjusting the delay between the
	direct sound and the first reflection heard by the listener.
Control range:	1 – 99 msec
Description:	The smaller the value, the closer the sound source seems to the listener. The larger the value, the farther
	the apparent distance seems. For a small room, this parameter would be set to a small value, for a large
	room, set it to a large value.				Sound source
						First reflection
	Level		Level				Early		Level
		Time					reflections				Time
								Time
	INIT. DLY			INIT. DLY						INIT. DLY

Sound source

Reflection surface

Small value = 1 ms Large value = 99 ms

■ROOM SIZE(P.ROOM SIZE — for the presence sound field)

Function:	This parameter adjusts the apparent size of the surround sound field. The larger the value, the larger the
	surround sound field becomes.
Control range:	0.1 – 2.0
Description:	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.

			Sound source
Level		Level		Early reflections		Level
	Time				Time		Time

Sound source

Small value = 0.1 Large value = 2.0

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