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參數(shù)資料
| 型號： | ISD-T360SB |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support |
| 中文描述： | VoiceDSP數(shù)字語音處理器與主/從，全雙工揚(yáng)聲器，多重閃光和雅藍(lán)/內(nèi)存支持 |
| 文件頁數(shù)： | 95/109頁 |
| 文件大?。?/td> | 1567K |
| 代理商： | ISD-T360SB |
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2-55
2—SOFTWARE
ISD-T360SB
ISD
Table 2-7: TUNABLE PARAMETERS: Tone Detection
Index
Parameter Name
Description
Default
18
Dial Tone:
TONE_DET_TIME_COUNT
Controls the duration of a tone before it is reported as a dial
tone, in 10 msec units. The accuracy of the constant is ±10 ms.
Legal values: 0 to 65535.
700
19
Busy and Dial Tone:
TONE_DET_ON_ENERGY
_
THRESHOLD
Minimum energy level at which busy and dial tones are
detected as ON (after 700Hz filtering). If you divide (multiply)
the value by 2 you get about 3 dB decrease (increase) in the
threshold.
The mapping between energy level and the parameter value
is as follows (measured on the codec output when a 400Hz
tone was injected to the codec input):
Tunable value
Energy threshold (dB-Volts)
10
–31.8
20
–28.6
100
–21.7
500
–14.7
8000
–2.5
Legal values: 0 to 65535.
160
20
Busy and Dial Tone:
TONE_DET_OFF_ENERGY
_
THRESHOLD
Maximum energy level at which busy and dial tones are
detected as OFF (after 700Hz filtering). If you divide (multiply)
the value by 2 you get about 3 dB decrease (increase) in the
threshold.
The mapping between energy level and the parameter value
is the same as for TONE_ON_ENERGY_THRESHOLD
Legal values: 0 to 65535.
110
23
Busy Tone:
BUSY_DET_MIN_TIME
Minimum time period for busy detection, in 10 ms units. The
accuracy of the constant is ±10 ms.
Legal values: 0 to 65535.
600
53
Busy Tone:
BUSY_DET_MIN_ON_TIM
E
Minimum period considered as On period for busy tone
detection. Note that for weak signals:
(–30 dB and below) the maximum value is 12 (i.e., 120 ms
minimum detection time).
Unit: 10 ms. Accuracy is ±20 ms.
Legal values: 10 to 1000.
10
54
Busy Tone:
BUSY_DET_MAX_ON_TIM
E
Maximum period considered as On for busy-tone detection.
Unit: 10 ms. Accuracy is ±20 ms.
Legal values: 10 to 1000.
168
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| ISD-TH | 制造商:Newport Electronics Inc 功能描述:MONITOR FOR TEMPERATURE HUMIDITY AND DE 制造商:NEWPORT ELECTRONICS 功能描述:MONITOR FOR TEMPERATURE, HUMIDITY AND DE 制造商:Newport Electronics Inc 功能描述:MONITOR FOR TEMPERATURE, HUMIDITY AND DEWPOINT; Input Voltage:100V to 240V; Kit Contents:Monitor (temp + humidity, dewpoint), LCD, 2GB SD, relay alarms, battery backup, 100-240VAC adapter |
| ISD-TH/N | 制造商:Newport Electronics Inc 功能描述:ISD MONITOR FOR TEMPERATURE AND HUMIDITY; Input Voltage:9V to 12V |
| ISD-TH-5 | 制造商:Newport Electronics Inc 功能描述:MONITOR FOR TEMPERATURE AND HUMIDITY 制造商:Newport Electronics Inc 功能描述:MONITOR FOR TEMPERATURE AND HUMIDITY; Input Voltage:100V to 240V; Kit Contents:iSD monitor, LCD display, memory card, relay alarms, battery back-up, pwr adapter. Probe, cable |
| ISD-TH-5/N | 制造商:Newport Electronics Inc 功能描述:ISD MONITOR FOR TEMPERATURE AND HUMIDITY; Input Voltage:9V to 12V |
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