9
MTR Software
The MTR software is a simplified single pane interface for recording and editing. Main differences from the full
SADiE are currently:
1 stream per input is created.
There is no configurable mixer
–
each stream is routed to its respective physical output.
The top pair of streams is a mixdown stream and this can record a stereo mixdown of the other
streams in the EDL. The master fader is before this stream and the mixdown stream is monitored on
the headphone output.
Pressing the top-left
“
Clipstore
”
button reveals a
“
Source Tracks Folder
”
, along with a Metadata entry
page, and sections for setting the Primary and Mirror destinations for audio recording
–
audio can be
recorded to two locations at the same time.
PERFORMANCE CONSIDERATIONS
The LRX2 is able to record and playback up to 64 channels of 44.1/48K audio material (or 32 of 88.1/96K) but
when recording at the high end of the number of channels, you will need to be more careful over the
performance of the PC and hard disks that are used for the recordings.
For greater than 24 channels of 48K/24 bit (or 12 channels of 96K/24 bit)
–
what we would call
“
larger track
counts
”
- we recommend:
Pentium Core Duo / Centrino Duo Processor 1.80GHz or higher. Or AMD Athlon 64 X2.
1GB of RAM or higher
7200rpm USB2 or Firewire hard drives.
A Laptop with a screen resolution of approximately 1000 lines will be better for running SADiE5.
Good USB2 performance is crucial to LRX2
’
s operation with larger track counts, and this can vary greatly
–
we
have seen very poor performance, particularly on some cheaper plug-in cards. SADiE5 and MTR software has
a
“
DSP Bandwidth
”
tool in the Help menu. Speeds of approximately 13.5MB/s read, and 15.5MB/s write should
be expected.
Disk Drive fragmentation
will spoil performance and even make a quick disk too slow for operation.
Windows de-fragmentation tools should be run if drives are regularly not being completely wiped before
recording.
The
“
Optimised Record Mode
”
item in the Record Setup page should be enabled for larger track counts.
This disables
“
punch-in
”
type recording, which would otherwise assign processing power to BOTH recording
and playback. If you
’
re not punching in, this mode should be enabled anyway. With the larger track counts you
may see
“
Disk Too Slow
”
messages if Optimised Record Mode is not enabled.
Disk Drives containing large numbers of files
will take longer to refresh and read directories than empty
disks, and thus the speed of starting and stopping recordings will be improved on relatively empty disks.
“
Optimised File Creation Mode
”
in the Record Setup page will speed up the time taken to start and stop
recordings when the project becomes large. The stop record/ start new recording sequence is a busy for file
opening & closing operations.
“
Optimised File Creation Mode
”
pre-creates a large number of temporary files in
the record directory so that the creation of files need not happen at this busy moment. These files are called
i.e. 123.pre and are usually 0 bytes (if they are larger, they are in the process of being renamed).
Disk drives formatted to NTFS have been seen to perform slightly better than those using FAT32 format.
iXML
–
including the iXML chunk (See Record Setup) will slow down the end of the recording a little.
It is not recommended to run other software applications during a recording. SADiE is a high priority task,
however certain Windows operations can change that priority, so even browsing a disk drive with Windows
Explorer or copying files is to be avoided.
Summary of Contents for LRX2
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