參數(shù)資料
型號: WM9712LSEFV
廠商: Wolfson Microelectronics
元件分類: Codec
英文描述: AC97 Audio and Touchpanel CODEC
中文描述: AC97音頻編解碼器和觸摸屏
文件頁數(shù): 27/78頁
文件大?。?/td> 689K
代理商: WM9712LSEFV
Production Data
WM9712L
w
PD Rev 4.0 December 2003
27
3D STEREO ENHANCEMENT
The 3D stereo enhancement function artificially increases the separation between the left and right
channels by amplifying the (L-R) difference signal in the frequency range where the human ear is
sensitive to directionality. The programmable 3D depth setting controls the degree of stereo
expansion introduced by the function. Additionally, the upper and lower limits of the frequency range
used for 3D enhancement can be selected using the 3DFILT control bits.
REGISTER
ADDRESS
20h
General
Purpose
22h
DAC 3D
Control
BIT
LABEL
DEFAULT
DESCRIPTION
13
3DE
0
(disabled)
3D enhancement enable
5
3DLC
0
Lower Cut-off Frequency
0 = Low (200Hz at 48kHz sampling)
1 = High (500Hz at 48kHz sampling)
Upper Cut-off Frequency
0 = High (2.2kHz at 48kHz sampling)
1 = Low (1.5kHz at 48kHz sampling)
3D Depth
0000: 0% (minimum 3D effect)
0001: 6.67%
1110: 93.3%
1111: 100% (maximum)
4
3DUC
0
3:0
3DDEPTH
0000
Table 13 Stereo Enhancement Control
Note:
1.
All cut-off frequencies change proportionally with the DAC sample rate.
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