Apple Logic Pro 9 (TDM Guide) - Manual (Page 17)

Logic Pro allows you to use both your TDM system DSPs and the computer’s native CPU
processing resources. The link between the DSP world of your TDM system and your
computer’s native CPU processing resources is ESB TDM.
ESB TDM uses your computer CPU to process one audio engine (Direct TDM), and the
DSP of the TDM hardware to process another (DAE). This is done by using two different
mixers in Logic Pro. The TDM Mixer uses the DAE to process TDM plug-ins. The DTDM
Mixer uses the computer CPU (Direct TDM) to process Logic Studio and Audio Units
plug-ins.
Up to eight DTDM Mixer outputs can be configured as ESB TDM outputs, which can be
routed in to the TDM Mixer. The DTDM Mixer outputs (ESB TDM outs) are received by the
ESB TDM inputs—which are available as sources in the input slot pop-up menus of TDM
Mixer aux channel strips.
This enables all Logic tracks, Logic Studio plug-ins, and Audio Units plug-ins—including
software instruments—to be used in conjunction with your TDM system DSPs.
This chapter covers the following:
• About the ESB TDM and EXS24 TDM Plug-ins (p. 17)
• Using EXS24 TDM (p. 18)
• Using ESB TDM (p. 19)
About the ESB TDM and EXS24 TDM Plug-ins
The ESB TDM and EXS24 TDM plug-ins enhance TDM system functionality by expanding
the capabilities of the TDM Mixer. If working at 44.1 or 48 kHz sample rates, up to 32
additional channels are available. These extra channels can be used for multiple
EXS24 TDM sampler instances, and up to eight inputs routed from the DTDM Mixer—which
uses the native audio engine (Direct TDM), running in parallel with the DAE.
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ESB TDM and EXS24 TDM 3