參數(shù)資料
型號： KD16902
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Virtual Surround Processor(虛擬環(huán)繞處理器)
中文描述： 虛擬環(huán)繞聲處理器（虛擬環(huán)繞處理器）
文件頁數(shù)： 12/74頁
文件大小： 327K
代理商： KD16902
KD16902 VIRTUAL SURROUND PROCESSOR
FUNCTIONAL DESCRIPTION
12
3 FUNCTIONAL DESCRIPTION
The KD16902 processor provides five functional modes. These modes, shown in Table 7, are selected by the
command sent from the host. At the start or reset, the KD16902 stays idle and waits for the mode selection from the
host. The KD16902 starts processing the corresponding functions after the mode selection.
Two different kinds of audio outputs exist in the KD16902. The first one is the two channel VCR output which is in
turn input to VCR after being converted into analog by an external DAC. This feature is very useful for recording
DVD output into VCR tape. The audio signal is recorded into VCR tape with the virtualizing effect, or downmix in
case of mode 3. The second output is the speaker output. The audio is reproduced to speakers through this output.
The KD16902 supports up to six channel output.
Functional Modes
Mode-1
Figure 8. Mode 1
The mode 1 is used for two speaker systems. Dolby Digital bit stream requires up to six speakers to reproduce the
audio properly. In this mode, the audio is reproduced using two speakers with the virtual surround effect. Since the
number of channels for VCR output is always two, the output for the VCR output and the speaker output are the
same as shown in Figure 8.
Table 7. Functional Modes
Mode
Function
Description
Speaker Output
VCR Output
1
2 Channel Virtual Surround
2 Channel Virtual Surround
For two speaker system
2
Multi Channel Virtual Sur-
round
2 Channel Virtual Surround
For three or more speaker system
3
Bass Redirection
Downmix
The bass part of selected channels are
redirected to other channels
4
Bypass
2 Channel Virtual Surround
Output is the original Dolby Digital audio
5
User Written Program
User Written Program
For downloading and executing user writ-
ten program
LFE
Rs
C
L
R
Ls
Virtual Surround
2 Channel
to VCR
to Speakers
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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