YSS915 Datasheet, PDF (14/32 Pages) YAMAHA CORPORATION – Karaoke Processor 2 for Video disc player

2. Movie and music program
Functions for processing the movie and music signals are described here.
The movie and music program can be used in KP2V extended mode.
Function
Description
De-emphasis ^{De-emphasizes audio input signal that has been emphasized.}
Specifies a sampling frequency and on/off of de-emphasis.
Tone Control ^{Controls tone of inputted audio signal in three frequency bands.}
Specifies the levels for bass (fc = 200 Hz), treble (fc = 5 kHz), and mid-tone (fc = 1 KHz) after selecting a sampling
frequency.
Surround 1 ^{Applies surround that uses initial reflected sound synthesizing system to audio input signal.}
(Initial reflected ^{One of four types of surround modes is selected and Output levels for R and L channels are set individually based on the}
sound) selected surround mode.
Surround 2
(YMERSION)
Applies YMERSION surround to audio input signal.
One of two types of surround modes is selected and Output levels for R and L channels are set individually based on the
selected surround mode.
Soft Mute
Noiseless mute, Specifies on/off.
Control register
Coefficient register
OPR[1]
OPR[7:6]
TCR[7:0]
RVR[3:0]
OPR[7:6]
KSR[6:5]
C10,C11,C12
C13,C18,C19
KSR[7]
C1A,C1B,C1C
C1D,C01,C04
OPR[3]
Volume
Controls volume.
C02,C06,C09,C0A,
C0E,C0F,C15,C16
C17,C1E,C1F
This LSI presents the features of sound field by using a combination of tone control, surround (initial reflected sound)and surround(YMERSION).
The tone control determines frequency characteristics of the sound field.
Initial reflected sound synthesis determines extent and depth of sound field to characterize a surround environment(concert hall and stadium).
YMERSION surround determines size and extent of reverberation.
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