Apple Logic Pro 7 User Manual
34
Chapter 5
Tips and Tricks
How to Import Native Songs from Any System
If you simply want to use the native processing capabilities of Logic, start Logic Pro
using Core Audio—with the standalone Digidesign Core Audio driver for your TDM
hardware activated.
using Core Audio—with the standalone Digidesign Core Audio driver for your TDM
hardware activated.
You will be asked if you’d like an automatic conversion if the song was created on a
non Core Audio system, provided that the Universal Track Mode setting is the same on
both systems.
non Core Audio system, provided that the Universal Track Mode setting is the same on
both systems.
Be aware of problems with incompatible plug-ins and/or settings, as mentioned above.
If you want to work further on this song, with the addition of TDM plug-ins and
instruments, start Logic Pro with DTDM only, as described earlier. You will be asked if
you’d like an automatic conversion, provided that the Universal Track Mode setting is
the same on both systems.
instruments, start Logic Pro with DTDM only, as described earlier. You will be asked if
you’d like an automatic conversion, provided that the Universal Track Mode setting is
the same on both systems.
Be aware of problems with incompatible plug-ins and/or settings, as mentioned above.
Follow the advice given earlier about reactivating DAE, the creation of further DAE
audio objects, and actively choosing the ESB Inputs of DAE Aux objects.
audio objects, and actively choosing the ESB Inputs of DAE Aux objects.
Using DAE, DTDM, and Core Audio Simultaneously
We strongly recommend that you do not attempt to use more than two audio engines
simultaneously within Logic Pro. The strain on the PCI bus will cause too many
problems, and will generate a number of DAE error messages.
simultaneously within Logic Pro. The strain on the PCI bus will cause too many
problems, and will generate a number of DAE error messages.
Your first choice should be DAE in conjunction with DTDM. If necessary, choose DAE
and Core Audio.
and Core Audio.
System Performance and TDM DSP Usage
The System Performance window does not reflect any native processing via the
Digidesign StreamManager in the DAE. Bear in mind that there may be heavy use of
the CPU due to the insertion of numerous ESX24 TDM or third party HTDM (Host TDM)
plug-ins, in addition to the DTDM or Core Audio processing.
Digidesign StreamManager in the DAE. Bear in mind that there may be heavy use of
the CPU due to the insertion of numerous ESX24 TDM or third party HTDM (Host TDM)
plug-ins, in addition to the DTDM or Core Audio processing.
An exception to the rule that all processing in TDM is performed by the DSP chips of
the TDM hardware are plug-ins and instruments that are routed to the CPU via the
Digidesign StreamManager, including: the EXS24 TDM, HTDM instruments and plug-
ins. The eight ESB TDM streams are provided by the StreamManager.
the TDM hardware are plug-ins and instruments that are routed to the CPU via the
Digidesign StreamManager, including: the EXS24 TDM, HTDM instruments and plug-
ins. The eight ESB TDM streams are provided by the StreamManager.
The StreamManager uses one of the TDM hardware DSPs. Up to 32 streams are possible
if working at 44.1/48 kHz, 16 at 88.2/96 kHz and only six at 176.4/192 kHz. Only one
StreamManager instantiation is possible.
if working at 44.1/48 kHz, 16 at 88.2/96 kHz and only six at 176.4/192 kHz. Only one
StreamManager instantiation is possible.