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Sample rate, Bit depth, Time code source – MACKIE HDR24/96 User Manual

Page 131: Time code frame rate, Time code offset, Hdr 24/96

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HDR 24/96

setting can also be used in HDTV production, where many permutations of frame rate and raster
lines are available.

Sample Rate
This is a pull-down menu or LCD selectable
option which is interactive with the Sample
Rate Mode setting selected at the time the
project was created. If you’ve set up the
project at the high (88.2/96 kHz) sample rate
mode, you’ll see those choices in the pull-
down menu. Similarly, if you’ve set up the
project to use the standard sample
rate, your choices will be 44.1 or 48
kHz. See Appendix G for more
information about working at
88.2/96 kHz sample rates.

Bit Depth
This pull-down GUI menu selects a word
length of 16 or 24 bits. You’ll find it on the
second page of the LCD SYNC menu.

Sample Rate Mode

44.1/48K

<< >>

SYNC OPTIONS ( )

Bit Generate TC

Depth SMPTE MTC Offset

Time Code Source
The HDR24/96 can

chase

to either SMPTE or MIDI time code (MTC). Since they arrive at two

different inputs, the SMPTE jack or the MIDI IN connector, this is where to select which source
is used. Pull down the menu to select SMPTE or MTC, or from the front panel SYNC menu,
select

Time Code Source and toggle between the two options with the SELECT buttons.

See page 75.

Time Code Frame Rate
This option selects the frame rate for both the generated and received time code. It’s a pull-down
menu on the GUI. On the front panel, select

Time Code Rate from the Sync Options

menu, then scroll through the options with the Select buttons.

Time code rate must match, both coming and going. If the HDR24/96 is set to

chase time code

from another machine, be sure you know the format and frame rate of the source and set the
HDR24/96 to match. If frame rates are mismatched, while the recorder will still play at the
correct speed, the time display will disagree with the time code, which could make things . . .
well . . . interesting when trying to put a project together. Similarly, when the HDR24/96 is
generating time code, for instance to stripe a videotape shot in sync with the audio, be sure that
you and the video producer agree on the time code format and you give him what he needs.

Time Code Offset
This is the amount of time that will be added to the incoming time code (when chasing) to arrive
at the Current Time value for the HDR24/96. Time code offset is in hours, minutes, seconds, and
frames, can be edited via the previously discussed

time entry and editing

features of the GUI. In

the GUI Setup | Sync page, the adjacent check box makes the offset negative.

From the front panel, select

TC Offset from the Sync Options menu. If you want to

adjust the offset time then select

Set. In the new TIME CODE OFFSET menu that appears, use

the SELECT buttons to move the “

VV” cursor along the time fields and set the time values with

Technical Reference 131