ISD-T360 ETC [List of Unclassifed Manufacturers], ISD-T360 Datasheet - Page 97

• Manufacturer Part Number: ISD-T360
• Description: VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support
• Manufacturer: ETC [List of Unclassifed Manufacturers]

ISD
10
12
22
47
48
49
50
Index
Silence (VOX):
VOX_DET_ENERGY_THRE
SHOLD
Silence (VOX):
VOX_DET_TIME_COUNT
Silence (VOX):
VOX_DET_TOLERANCE_T
IME
Constant Energy:
CONST_NRG_DET_TIME_
COUNT
Constant Energy:
CONST_NRG_DET_
TOLERANCE_TIME
Constant Energy:
CONST_NRG_DET_LOW
_
THRESHOLD
Constant Energy:
CONST_NRG_DET_HIGH
_
THRESHOLD
Parameter Name
Table 2-8: TUNABLE PARAMETERS: Energy Detection
This parameter determines the minimum energy level at
which voice is detected. Below this level, it is interpreted as
silence.
Legal values: 1 to 32767.
This parameter, in units of 10 ms, determines the period of
silence before the VoiceDSP processor reports silence. The
accuracy of the constant is ±10 ms.
Legal values: 0 to 65535.
Controls the maximum energy-period, in 10 ms units, that does
NOT reset the vox detector.
Legal values: 0 to 255.
Minimum elapsed time until the VoiceDSP processor reports
constant energy level. Units: 10 ms. Accuracy: ±10 ms
Legal values: 1 to 65534
Variations in constant energy, up to this time, do not reset the
constant energy detector. Units: 10 ms.
Legal values: 0 to 255
Determines the minimum energy level that is treated as
constant energy. The minimum energy is calculated as follows:
(1—1/2
Legal values: 1 to 16
Determines the maximum energy level that is treated as
constant energy. The maximum energy is calculated as
follows:
(1 + 1/2
Legal values: 0 to 16
CONST_NRG_DET_LOW_THRESHOLD
CONST_NRG_DET_HIGH_THRESHOLD
Description
) * average_energy
) * average_energy
12
700
3
700
5
1
1
Default
2-57