JK Audio Broadcast Host - Manual (Page 5)

Overview
1
Introducing the Broadcast Host™
Broadcast Host will allow you to send and receive audio over analog telephone
lines. While this may seem like a simple task that any telephone can do, the
challenge is getting the best quality audio from such a limited audio path.
What is a Digital Hybrid?
The Broadcast Host digital hybrid connects audio signals to a standard analog
telephone line without the variations in quality found with analog hybrids. The
main function of a hybrid is to bring in the caller’s voice from the phone line as
clear and clean as possible. In the real world, when you send your voice down
the telephone line it has a tendency to bleed over into the caller’s audio. The
hybrid must adapt to the phone line in order to properly separate transmit and
receive audio. We use a 16 bit DSP (Digital Signal Processor) to continuously
monitor the phone line and local audio signals to deliver excellent trans-hybrid
loss, also known as separation. Our dual-convergence algorithm can achieve
excellent separation, typically exceeding 50 dB.
Ready to go?
The Broadcast Host controls and connectors are clearly marked and ready for
operation. The Features diagrams and Operation sections on the following pages
will help you pinpoint any minor questions that you may have. If this is your first
exposure to a hybrid, we suggest that you read the entire manual to allow you to
take advantage of all these features.
Any Questions?
Before you pick up the phone... Please thumb through the rest of this manual.
You might find those deep technical questions are covered on later pages.
Overview