AN-9001
環境噪音偵測麥克風
DP-L2
環境噪音控制器
DiscontinuedDP-L2
The DP-L2 is a digital audio processor equipped with 2 x Input, 2 x Output, 1 x ambient noise sensor microphone input and 1 x monitor output and features easy setting of each function by the front panel operation. It is equipped with an ambient noise control function (The ANC function distinguishes between the unit's output sound and the ambient noise. The unit's output sound is not detected as noise.) and an automatic level control function that keeps the input signal level constant. It can be mounted in an EIA Standard equipment rack (1 unit size).
- 數碼音訊處理器調整BGM/公告音量以適應環境噪音的變化
- 自動準確調整輸入和輸出聲級
- 排除輸出不受環境噪音感應
- 安裝方便、快速，操作簡單
- 1 單元尺寸
* 0 dB = 0.775 V
電源
220 – 240 V AC, 50/60 Hz
消耗功率
20 W (220 mA)
頻率響應
20 Hz – 20 kHz, ±1 dB
取樣頻率
48 kHz
動態範圍
108 dB (IHF-A weighted) or more
失真率
0.006% or less, 1 kHz, + 4dB* input/output (20 Hz - 20 kHz BPF)
輸入
Sensor input (Ambient noise sensor microphone input): +4/–48 dB* changeable, 10 kΩ, electronically-balanced, removable
terminal block (4 pins), phantom power (+15 V DC, can be turned on or off with Phantom switch) with +15 V DC terminal
Input 1, 2: +4/–8/–20 dB* changeable, 15 kΩ, electronically-balanced, removable terminal block (3 pins)
terminal block (4 pins), phantom power (+15 V DC, can be turned on or off with Phantom switch) with +15 V DC terminal
Input 1, 2: +4/–8/–20 dB* changeable, 15 kΩ, electronically-balanced, removable terminal block (3 pins)
輸出
Monitor output: +4 dB*, 600 Ω, electronically-balanced, removable terminal block (3 pins)
Output 1, 2: +4 dB*, 600 Ω, electronically-balanced, removable terminal block (3 pins)
Output 1, 2: +4 dB*, 600 Ω, electronically-balanced, removable terminal block (3 pins)
A/D轉換器
24 bit
D/A 轉換器
24 bit
Digital Signal Processing
Automatic Level Control Function
Level meter (4 LED meters), Automatic input signal level control function, Automatic input sensitivity setting function (+4/–8/–20 dB*), Noise gate level setting (–99 to –3 dB)
ANC (Ambient Noise Control)
Level meter (4 LED meters), BGM/Announce level control function, Automatic sensor input reference level measuring function,
Sensor input reference level fine adjustment function, Maximum output signal level control (–15 to 0 dB),
Minimum output signal level control (–18 to –3 dB), Sample time setting (10 s, 20 s, 30 s, 1 min, 5 min), Gain ratio setting (6:3, 5:3, 4:3, 3:3, 3:4, 3:5, 3:6), Ambient noise measuring frequency setting (20 Hz – 20 kHz, 3 points)
Maximum Output Signal Level Control Function
–12, –6, 0, +4, +6, +12, +18, +24 dB*
Input Level Indicator
8 LEDs indicator
Output Level Indicator
8 LEDs indicator
Other Feature
Phantom power switch (sensor input), Key lock function, Ground lift switch (INPUT 1, INPUT 2), Input/Output byass function in power off
工作溫度
0 ºC to 40 ºC (32 ºF to 104 ºF)
工作濕度
90% RH or less (no condensation)
外觀
Pre-coated steel plate, black, 30% gloss
尺寸
482 (W) x 44 (H) x 303 (D) mm (18.98" x 1.73" x 11.93")
重量
3.7 kg (8.16 lb)
附屬品
Removable terminal plug (4 pins) x 1, Removable terminal plug (3 pins) x 5
Note: Prepare ambient noise sensor microphone separately.
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