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美国JK AUDIO Broadcast Host 数字电话耦合器

时间:2011/4/14 9:31:05 (点击:2351次)

美国JK AUDIO   Broadcast Host

美国JK AUDIO Broadcast Host 数字电话耦合器

美国JK AUDIO Broadcast Host 数字电话耦合

美国JK AUDIO Broadcast Host 数字电话耦合

 

JK Audio的Broadcast Host是一款个人用台式数字耦合器,可用于电话采访等。Broadcast Host可以通过电话线路发送话筒和线路电平信号,同时仍能保持你的声音和主叫者声音的分离。后面板上的立体声输出接口的一个通道是你的声音,另一个是主叫者的声音。平衡的XLR输出接口只传输主叫者的声音。
数字耦合器可将音频信号连接到标准的模拟电话线路中,而不会像普通的模拟耦合器一样发生传输/接收串扰。数字信号处理器(DSP)可连续监听双方的线路及音频信号,以保证准确的分离。它专有的双向回声消除器程序可以达到理想的分离效果,一般都超过50 dB,而且不需要任何安装,也不会在线路中发送噪音音爆。
Broadcast Host还可以连接一个话筒、耳机、调音台、声卡、电话和你的模拟电话线路。在需要分机的时候可以增加一个辅助电话。当你按下“Call”(呼叫)按键时,辅助电话会自动挂断,当你按下“Drop”(取消)按键时恢复连接。
Broadcast Host还带有自动应答和自动中断功能,可用于IFB和监听应用。其他的应用还包括:电话采访、谈话节目、教堂PA接口以及会议室全双工应用。

Our Most Popular Digital Hybrid.

Broadcast Host turns your desktop into a professional broadcast center. Contains everything you need to get talk show quality phone recordings into your mixer or sound card. Connect a mic and headphones for a simple broadcast back to the station. Already at the station? Use Broadcast Host in your newsroom to record high quality interviews. Or, you can upload your recorded interview to your podcast. Broadcast Host allows you to send mic and line level signals into the phone line while maintaining excellent separation between your voice and the caller. The stereo output jack on the back of the unit provides your voice on one channel and only the caller’s voice on the other channel. The balanced XLR output jack contains only the caller’s voice.

Digital Signal Processor

The digital hybrid connects audio signals to a standard analog telephone line without the transmit / receive crosstalk common to analog hybrids. The Digital Signal Processor (DSP) continuously monitors both the phone line and audio signals to deliver excellent separation. This proprietary, dual-convergence echo canceller algorithm can achieve excellent separation, typically exceeding 50 dB, without any setup and without sending a noise burst down the line.

Interview and Conference Applications

Broadcast Host provides connections for a microphone, headphones, mixer, sound card, telephone and your analog telephone line. An auxiliary telephone is only required to place outgoing calls. The auxiliary telephone is disconnected when you press the “Call” button, and reconnected when you press the “Drop” button.

IFB Applications

Broadcast Host features Auto-Answer/Auto Disconnect for use in IFB and monitoring applications. Other applications include: telephone interviews, talk shows, church PA interface, and conference room full duplex applications.

Specifications
Send 1 Balanced Female XLR
Impedance 1k ohms
Level 15 mV RMS (-34 dBu nom)
Mic/Line Pad Switch +6 dBu max
Send 2 1/8" (3.5mm) Stereo
Impedance 20k ohms
Level 250 mV RMS (-10 dBu nom)
Caller Out Balanced Male XLR
Impedance 200 ohms
Level 500 mV RMS (-4 dBu nom, +14 dBu max) 
Caller Only
Stereo Out 1/8" (3.5mm) Stereo
Impedance 50 ohms
Level 250 mV RMS (-10 dBu nom, +6 dBu max) 
Left = Send, Right = Caller
Headphone 1/8" (3.5mm)
Impedance 8 ohms
Level 250 mW 
Mixed Send and Caller
Misc
Phone Line Connector RJ11C
Aux Phone Connector RJ11C
Ringer 0.8B REN
Isolation 1500 VAC
Frequency Response Telephone Side 200 Hz-3600 Hz
Power 120-240 VAC Power Supply
Size 7" x 6" x 1.6" (18 x 15 x 4.2 cm)
Weight 2.2 lbs. (1kg)

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