Broadcast Host - Desktop 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. 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.
The digital hybrid connects audio signals to a standard analog telephone line without the transmit / receive crosstalk common to analogue 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.
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.
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 | |
|---|---|
| Input (Mic/Line): | Balanced Female XLR, 1kohm, -10 mVRMS (-35 dBV nom) Mic/Line pad switch = +4dBV max |
| Line: | 3.5 mm mono, 20kohm, 250 mV RMS (-10 dBV nom) |
| Output Balanced: | Male XLR, 200ohm, 500 mV RMS (+12 dBV max) |
| Unbalanced: | 3.5 mm stereo, 50 ohms, 250 mV RMS (+4 dBV max) Left = send, Right = caller. |
| Headphone: | 3.5 mm stereo, 8 ohms, 250 mW, mixed send and receive. |
| Phone Line: | RJ11C |
| Aux Phone: | RJ11C |
| Isolation: | 1500 VAC |
| Ringer: | 0.8B REN |
| Frequency Response: | Telephone Side 200 Hz - 3600 Hz |
| Power: | 120-240 VAC power supply (included). |
| Size: | 7” x 6” x 1.6” (18 x 15 x 4.2 cm) |
| Weight: | 1kg |
FAQs
- What happens if someone takes a second phone off-hook when the Broadcast Host is on a call?
- Broadcast Host will treat the other local voice the same as the caller. It will attempt to keep transmit audio from returning back with the caller's audio, but this becomes more difficult with this scenario. The local voice will certainly sound much louder than the distant caller's voice.
- How does Broadcast Host adjust itself to the phone line?
- We use a proprietary dual-convergence echo canceller algorithm which continuously compares transmit and receive audio while building a model of the phone line. The first model is built within the first 200 milliseconds of the call. Afterwards, the algorithm continuously adapts to the phone line for the duration of the call. This system is not disturbed by changes such as someone taking an extension phone off-hook. Only your audio source is used as input to the algorithm. It does not require any noise bursts or "quiet time" to complete its mission. Bottom Line... Excellent separation all the time.
