參數(shù)資料
型號(hào)： TECO3264
廠商： Lineage Power
英文描述： 32-Channel Echo Canceller(32通道回波清除器)
中文描述： 32通道回聲消除器（32通道回波清除器）
文件頁數(shù)： 92/128頁
文件大?。?/td> 2328K
代理商： TECO3264
Data Sheet
August 1999
TECO3264 32-Channel Echo Canceller
92
Lucent Technologies Inc.
Register Architecture
(continued)
Page 0 Read/Write Registers 000
—
07FE
(continued)
ê Noise Floor Estimate Maximum 2 Register
Table 72. ê Noise Floor Estimate Maximum 2 Register (04F) [00]
Gamma ê Noise Floor Register
Table 73. Gamma ê Noise Floor Register (050) [02]
Clamp ê Noise Floor 1 Register
Table 74. Clamp ê Noise Floor 1 Register (051) [FF]
Bit
6—0
Symbol
MAXMEMP
[13:0]
Parameter Name and Description
ê Noise Floor Estimate Maximum [13:8].
(See ê Noise Floor Estimate Maximum 1
Register (04E) [1F], Table 71, on page 91, for MAXMEMP[7:0].)
ê
noise floor estimate
continued.
Recommended value = 000000.
7
NESPHOC[8:0]
NES Hangover [8].
(See Near-End Speech Hangover Register (04D) [F0], Table 70, on
page 91 for NESPHOC[7:0].) Near-end speech hangover.
Recommended value = 0.
Bit
7—0
Symbol
GAMMA[7:0]
Parameter Name and Description
Gamma ê Noise Floor [7:0].
Upward adaptation rate for ê
noise floor estimate. Deter-
mines the upward adaptation rate of the noise floor estimate. The range is 1—15 where
15 is the fastest rate (recommended). Changes slowly for slow gamma and fast for high
gamma. Adaptation range—the higher, the faster.
Recent indications are that value should be larger than before (was 01).
Recommended value = 00000010.
Bit
7—0
Symbol
EMPCLP
[13:0]
Parameter Name and Description
Clamp ê Noise Floor [7:0].
(See also Clamp ê Noise Floor 2 Register (052) [3F], Table
75, on page 93, for EMPCLP[13:8].) Clamp on maximum value of ê EMP filter for noise
floor estimate. This guarantees there will be no overflow.
Recommended value = 11111111.
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