This article will cover Mic Closures, what they are, why they are necessary and the typical types. The Futuri POST transmitters require a dry latched closure to ensure proper talk break segmentation.
What is a "Mic Closure"? - A mic closure is a trigger that signals the Futuri Encoder that the microphone is live. (Mic Closures can be a physical connection to the station's "On-Air" light.)
Why is it necessary to have "Mic Closures"? - Mic closures are important for POST to determine when the mic is live. By sending the mic closure to the encoder, POST is able to accurately break the audio into correct segments, allowing the end user to more efficiently create postable content.
What is a "GPIO"? - You will occasionally hear Mic Closures referred to as GPIOs. A GPIO or (General Purpose Inputs and Outputs) are physical hardware connections that allow computers to interact on a software level. (The Futuri Encoder in this instance.)
Types of Mic Closures:
Types of Mic Closures
Description of Closure
|Gen4 Single Stream Boxes:||The Gen4 Single stream boxes have their GPIO connection incorporated into the DB15HD connector that also connect analog audio to the encoder.|
|Gen4 Multi-Stream Boxes:|
The Gen4 Multi-stream Encoder or (MSE), has a DB15 connector on the back of the box. The MSE is unique, in that each station, or slot on the box may have two separate GPIO connections. This will allow for the "On-Air" lights from two different studios to trigger a Mic Closure from within the POST System.
Axia closures work by listening to a Port and Pin on an xnode device. For the Axia closure to work properly, we will need:
|"Stop Block" Closures:|
"Stop Block" closures are basically inverted closures. Instead of sending a signal when the mic is in the "ON" or "Off" position, the system sends a signal before and after a commercial break occurs. For this reason "Stop Block" closures are generally on used on Talk radio stations.
|Serial Closures - Gen3 Boxes:||The serial connections on a Gen3 box are made by connecting a female DB9 adapter to a 9 pin serial port on the back of the unit.|