Routing example

Goal

We want to use EKIO to filter the stereo stream generated by Windows applications. EKIO processes the input stream into 4 analog channels, which are then sent to four amplifiers.

Configuration

The proposed solution is as follows:

It is performed with the following links:

Link 1:

Windows Applications

PC applications utilize standard Windows audio drivers (WDM, DirectSound, etc.). The audio is sent across 2 channels.

Link 2:

Audio interface configuration

In order to direct the stereo signal received from Windows to ASIO inputs, we use the loopback channels of the card. The Saffire Pro40 router automatically sends these channels to ASIO IN. So we connect:

Link 3:

EKIO configuration (Input Selection)

Within EKIO, start by choosing the Saffire sound card. Then, select the relevant inputs. The list of inputs includes all physical inputs and loopback channels. Choose Loopback entries 1 and 2, equivalent to channels 19 and 20.

Link 4:

EKIO Configuration (Output Selection)

For outputs, 20 DAW channels are available. However, the first channels are occupied to receive audio from the Windows audio driver (e.g. WDM). If Windows is set for 2.0 output, channels DAW1 and DAW2 are in use; for 5.1 output, channels DAW1 to DAW6 are in use; and for 7.1 output, channels DAW1 to DAW8 are in use.

Avoid these occupied channels and configure EKIO to output on channels DAW9, DAW10, DAW11, and DAW12.

Link 5:

Audio interface configuration

In MixControl, connect the physical outputs as follows:

Link 6:

Hardware

Connect the sound card analog outputs 1 to 4 to four amplification channels.