Application of Voice Database in Enterprise Human Resources Optimization Based on Improved Algorithm
Table 3
Default value and range of E model parameters.
Parameter
Abbreviation
Unit
Defaults
Allowable range
Note
Loudness level
SLR
dB
+8
0...+18
(Note 1)
Receive loudness level
RLR
dB
+2
−5...+14
(Note 1)
Side tone masking level
STMR
dB
15
10...20
(Note 2)
Side tone level
LSTR
dB
18
12...23
(Note 2)
D value of the phone on the sending side
Ds
—
3
−3...+3
(Note 2)
D value of the receiving side phone
Dr
—
3
−3...+3
(Note 2)
Speaker echo intensity level
TELR
dB
65
5...56
Weighted echo channel loss
WEPL
dB
110
5...110
The average word delay of the echo channel
T
ms
0
0...500
4-wire loop round trip delay
Tr
ms
0
0...1000
Absolute delay in echoless connection
Ta
ms
0
0...500
Number of quantization distortion units
Qdu
—
1
1...14
Equipment damage factor
Ie
—
0
0...40
Packet loss intensity factor
Bpl
—
1
1...40
(Note 3)
Random packet loss probability
Bpl
%
0
0...20
(Note 3)
Burst ratio
Burs:R
—
1
1...2
(Note 3)
Circuit noise referenced to 0dBr point
Ne
dBm0p
−70
−80... −40
Receive side noise floor
Nfor
dBmp
−64
—
(Note 3)
Indoor noise on the transmitting side
Ps
dB(A)
35
35...85
Indoor noise on the receiving side
P
dB(A)
35
35...85
Benefit factor
A
—
0
0...20
Note 1: the total value of 0dBr points between the transmitter and the receiver. Note 2: fixed relationship: LSTR = STMR + D. Note 3: currently under study.
