Kenwood KA-V9500 - Manual (Page 34)

DSP Presence
I DSP parameters]
In addition to the selection of preset sound field patterns, the Surround effect can also be enjoyed by adjusting the following parameters
to obtain a sound field that matches your taste.
1. Main parameters
(T) Room Size ..................... Adjusts the interval of early reflection sound waves to simulate the room size. The size of a standard
listening room is assumed to be 1, and the parameter can be adjusted in the range from 0.5 to 2.0 in
steps of 0.1.
@ Wall....................... ...... Simulates the sound reflected by walls. The higher the set frequency, the harder the simulated walls are
(1 to 16 kHz, 1 kHz steps).
@ Position ........................... Defines the listening position. The adjustment range is from 1 to 100.
When the parameter becomes larger, the listening position moves to the rear.
2. Sub parameters
0 Early Reflection Level ....................... Determines the live feeling of the listening room. The adjustment range is from 0 to 100
in steps of 1. Increasing the value increases the live feeling.
0 Early Reflection Time ......................... Determines the listening room size and listening point which is the position of the listener.
The adjustment range Is from 1 to 60 ms in 1 ms steps. Increasing the value increases the
simulated distance between the sound source and listener.
@ Reverb level ............................................ Represents the level of the reverberation sound. The adjustment range is from 0 to 100
in steps of 1. Increasing the value increases the reflections from the simulated walls.
© Reverb Time ................................. . Adjusts the time until the reverberation sound fades out. The adjustment range is from 0.5
to 4.0 sec. in 0.1 sec. steps.
0 Reverb Density ................... ................. Adjusts the reverberation density to obtain an optimum reverberation according to the
music source. The adjustment is performed in three steps of High, Mid and Low.
Note:
The Reverb Level, Reverb Time and Reverb Density parameters are not operated with the "MOVIE THEATER", "JAZZ CLUB",
"DISCOTHEQUE", "STADIUM" and "SYNTHETIC MOVIE THEATER" patterns.
Example of a concert hall
indicates delayed
sound waves.
Types of sound
As shown in this example of a concert hall, the listener hears the
sound of the piano played on the stage as a composite sound
consisting of the direct sound from the piano, indirect sound which
are reflected by the ceiling and side and back walls before reaching
the listener's ears, and reverberation sound which fades after
repeating several reflections.
The indirect sound is always transmitted through a longer spatial
distance than the direct sound, and the time it takes before
reaching the listener is referred to as the delay time. This indirect
sound with certain delay time plays a critical role in providing better
sound effect and live feeling of the hali. The sound field setting
in your listening room may also be dependent on the positions of
the speakers. It is recommended to vary and try different delay
times to obtain an optimum sound field.
I Variation of sound]
34 KA-V9500 (EnJ
Playback with DOLBY PRO LOGIC or 3 STEREO