Yamaha DSP-AX757SE owner manual Sound Field Parameter Descriptions, DSP Level DSP level

SOUND FIELD PARAMETER DESCRIPTIONS

You can adjust the values of certain digital sound field parameters so the sound fields are recreated accurately in your listening room. Not all of the following parameters are found in every program.

■DSP LEVEL (DSP level)

Function:	Adjusts the level of all the DSP effect sounds within a narrow range.
Description:	Depending on the acoustics of your listening room, you may want to increase or decrease the DSP
	effect level relative to the level of the direct sound.
Control range:	–6 dB to +3 dB

■INIT. DLY/P. INIT. DLY (Initial delay)

Function:	Changes the apparent distance from the source sound by adjusting the delay between the direct sound
	and the first reflection heard by the listener.
Description:	The smaller the value, the closer the sound source seems to the listener. The larger the value, the farther
	it seems. For a small room, set to a small value. For a large room, set to a large value.
Control range:	1 to 99 msec
						Source Sound
							Early
	Level			Level			Reflections	Level
			Time				Time			Time
		Delay			Delay			Delay
		Sound Source
		Reflection Face
	Small value = 1 ms								Large value = 99 ms

■ROOM SIZE/P. ROOM SIZE (Room size)

Function:	Adjusts the apparent size of the surround sound field. The larger the value, the larger the surround
	sound field becomes.
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.
Control range: 0.1 to 2.0
					Source Sound
							Early
		Level		Level			Reflections	Level
			Time			Time				Time
Sound Source
	Small value = 0.1								Large value = 2.0

INFORMATION	ADDITIONAL
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