參數(shù)資料
型號: 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): 73/128頁
文件大?。?/td> 2328K
代理商: TECO3264
Data Sheet
August 1999
TECO3264 32-Channel Echo Canceller
73
Lucent Technologies Inc.
Register Architecture
(continued)
Page 0 Read/Write Registers 000
07FE
(continued)
Far-End Speech Threshold 1 Register
Table 31. Far-End Speech Threshold 1 Register (026) [9B]
Far-End Speech Threshold 2 Register
Table 32. Far-End Speech Threshold 2 Register (027) [02]
Narrowband Energy Peak Factor Register
Table 33. Narrowband Energy Peak Factor Register (028) [18]
Bit
7—0
Symbol
FESTH[12:0]
Parameter Name and Description
Far-End Speech Threshold [7:0].
Determines the threshold level at which receive input
level exceeds the FES threshold = (X power > FEST). Set to a few dB above network
noise threshold [FESTH[12:0] = 2B0 corresponds to –32 dBm0]. See Far-End Speech
Threshold 2 Register (027) [02], Table 32 for FESTH[12:8].
20log
10
(FESTH/4000) = 0 dB
Range: –60 dB to –20 dB
Step: 1 dB
Recommended value = 10011011.
Bit
4—0
Symbol
FESTH[12:0]
Parameter Name and Description
Far-End Speech Threshold [12:8].
See Far-End Speech Threshold 1 Register (026)
[9B], Table 31 for bits FESTH[7:0].
Recommended value = 00000.
Reserved.
Set to 0.
7—5
Bit
7—0
Symbol
NBEPKF[7:0]
Parameter Name and Description
Narrowband Energy Peak Factor [7:0].
Recommended to leave at 18 for best performance of interrelated functions.
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