Application Specific Configurations; Multitrack Editing; Ltc Sync - Merging Pyramix 4.3 User Manual

Application Specific Configurations

Multitrack Editing

Pyramix is ideally suited for editing multitrack recordings. Grouping clips across all tracks used for the
recording allows edit decisions to be made while listening to a single track or several with the resulting
edit changes reflected in all the clips in the group. Track Grouping functions enable you to work in a way
that suits you. The Source - Destination editing model is just one possibility.
Please see the following sections:
Grouping Clips on page 54
Track Groups on page 152
Source - Destination Editing on page 188
Editing with Limited Hardware
Multi-track recordings with many tracks (E.g. 48 track 96kHz 24 bit music recordings) can be edited on
hardware which cannot support this number of tracks. (E.g. a laptop) Simply mute tracks that do not
need to be heard using
the
disk. Providing the Multitrack recording's Clips are grouped across all tracks, then any editing changes
made on the tracks used for the editing guide sound will also be reflected in the muted tracks.

LTC sync

EXAMPLE - where a cinema projector must be the master
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All LTC sync ballistics in the Pyramix software have been carefully designed to both allow a large lock-
ing range (-7 to +5%) while still exhibiting extremely low instantaneous jitter and more importantly a con-
trolled maximum speed change slope - not more than about 25 PPM per ms (25 Parts Per Million/
millisecond) - in order to make sure that any other digital audio equipment connected to it's Wordclock
output is provided with a smoothly changing clock speed (free of any abrupt speed changes). When
used with Tascam digital multi-tracks such as the DA-88 this in turn allows the TDIF input decoding cir-
cuitry in Pyramix to properly decode the digital audio data at all times without disruptions while the com-
plete system follows the actual master speed changes.
Driving the pyramix with the LTC output of the DA-88 is maybe possible in some situations but will dem-
onstrate several limitations which should not occur if you precisely follow the recommended setup as
button in the Track Header. Tracks muted here, rather than in the mixer, no longer access the
Cinema projector follows mains (or is crystal controlled) and sends biphase signal to a
Biphase -to LTC converter. (E.g. the Rosendahl BIF)
Converter's LTC output is directly fed to Pyramix LTC input
Pyramix is set to "LTC sync" mode and will adapt it's own internal clock to sync to LTC
whenever the Pyramix is set to lock and the external LTC is recognized to be playing at
about 1x forward speed.
Pyramix feeds it's own clock to the DA-88 (or similar machine used as an A/D converter) via
Wordclock.
The DA-88 (or equivalent) is set to sync to external Wordclock
The DA-88 in turn provides the Pyramix TDIF daughtercard input with digital audio data.
User Manual : Application Specific Configurations
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User Manual