TEC-1 and the Mute block
This article describes how to connect the TEC-1 to a Mute block in Tesira so the triangle indicator in the TEC-1 indicates the mute state of the selected channel. Adding volume control to the same Control Item adds functionality to the design.
This illustration shows the topology of the circuit being discussed. Elements are examined in detail below.
TEC-1 Logic Control
Flip Flop logic gate
The flip flop gate is a logic element that converts a momentary pulse to a latching state, one pulse latches it high, another pulse flips the state to latch it low, and so on.
The TEC-1 provides a momentary logic pulse. A flip flop gate attached to the TEC-1 will latch high or low on each tap of the center of the TEC-1 control ring and will also provide feedback to the TEC-1 that a logic high or low is being maintained. The TEC-1 will use that feedback to show or hide the triangle indicator associated with that logic control.
The flip flop gate should be placed inline between the TEC-1 and the Mute block.
Right click on the mute block to select "Edit Block Parameters..." and check the box in front of "Control Inputs". This will turn on the input logic nodes for the block, 1 node per channel. If the "Gang Controls" option is checked only a single node will be available.
Connect the Mute block control inputs to the outputs of the flip flop gate. Once the system is compiled and loaded to your devices the TEC-1 should allow control of the mute block within Tesira. Note that triggering a mute within the Mute block does not provide feedback to the TEC-1 as it does not affect the flip flop gate.
Adding volume control
It is possible to use both the Level Control and Logic Control with individual Control Items in the TEC-1.
The composite of both elements would allow you to create a Control Item which would mute and unmute a channel based on tapping the center of the ring, as well as modifying the volume via a Level Control block by using the ring interface.
See the attached Tesira v2.2 file for an example of wiring the logic for a mute control attached to a TEC-1.