ESB TDM allows the outputs of the DTDM Mixer—processed by the computer CPUs (Direct TDM audio engine)—to be routed in to the input slots of TDM Mixer aux channel strips. This enables you to process Logic Pro audio tracks and Logic Studio or Audio Units instruments with TDM-based effects.

Note: Direct TDM must be activated in the Logic Pro > Preferences > Audio > Devices pane if you want to route signals from the DTDM Mixer into the TDM Mixer. See Direct TDM Settings.

Depending on the number of required channel strip types, your DTDM Mixer could look something like this:

Figure. Mixer window showing several audio, instrument, aux and output channel strips.

This DTDM Mixer example features six audio channel strips, two aux channel strips, two instrument channel strips, and two stereo sums. The eight output signals of the DTDM Mixer example shown above are routed into the TDM Mixer. The DTDM Mixer output signals are received by the ESB TDM inputs—chosen as TDM aux channel strip input sources.

To configure and choose ESB TDM sources
  1. Set up mono (ESB 1–8) or stereo (ESB 1–2, 3–4, 5–6, and 7–8) DTDM Mixer output channels.

  2. Choose one of the available input sources for each TDM Mixer aux channel strip.

    The following example shows ESB TDM sources in the input slots of TDM Mixer aux channel strips 1–8:

    Figure. Mixer window showing eight TDM aux channel strips, each with an ESB instance as input.

ESB TDM Mono and Stereo Handling

Logic Pro handles ESB TDM mono and stereo channel settings separately. You can specify either a mono output channel (ESB 1–8), or a stereo output channel pair (ESB 1–2, 3–4, 5–6, and 7–8) in the DTDM Mixer.

These can be individually selected as aux channel strip input sources in the TDM Mixer.

Figure. Mixer window showing a stereo aux channel strip with channel pair ESB 1–2 selected in an open input menu.
To create mono and stereo ESB TDM template projects
  1. Set up mono DTDM Mixer output channels (ESB 1–8), and choose them as input sources for each TDM Mixer aux channel strip, then save your project as a template.

  2. Set up stereo DTDM Mixer output channels (ESB 1–2, 3–4, 5–6, and 7–8), and choose them as input sources for each TDM Mixer aux channel strip, then save your project as a template.

    Choose the appropriate template to quickly switch between mono and stereo setups, without needing to manually change settings each time.