Installation manual

Chapter 8
Audio Driver
If you operate more than one audio interface (through addi-
tional Bridge I/O cards), the additional interfaces are called
"b",
"c", etc.; for example, “Out
882b
1-2".
Special Features of
ProTools
24
The most significant new features of
PtoTools
24
are:
Under Logic you now can also record and playback with
24
bit word length.
Provides up to
32
audio tracks. For system requirements,
please see the Digidesign documentation.
A core system may have
24
inputs and outputs (versus
16
with
ProTools
III
PCI,
or 8 with
ProTools
III
NuBus).
ProTools
24
does not have its own SCSI bus. It uses the
computer’s SCSI bus. Therefore, you should read QT
movies and audio data not only from separate hard disks, but
also from hard disks connected to different SCSI busses.
For the operation of
ProTools
24
with
TDM,
Logic Audio
Platinum is required. Unlike
ProTools
III, it cannot be run as
if it were a Project or Session8 system, with Logic Audio
Gold. However, you can run a
ProTools
24
system in Logic
Audio Gold, using the Direct I/O driver. This gives you no
access to TDM functionality, so if you have such a system, it
is highly recommended that you upgrade to Logic Audio
Platinum.
TDM Mixer Plug-in
Please be sure that there is only one Mixer Plug-in in the
“Plug-ins” folder (within the DAE folder), which will be either
the
16-bit
version or the
24-bit
version.
24-bit
files can also be played back through the “16-bit opti-
mized mixer” (or vise versa). However, only the “24-bit opti-
mized mixer” can adequately handle the resolution of record-
ings in
24-bit
format.
8-32