The Digital Solutions VM01 is a Virtual Machine with twin
transport control ports which respond to the Sony (RS422) VTR
control protocol. The unit also generates longitudinal timecode
(LTC) corresponding to the current position of the virtual
transport. It is designed to be used with those Digital Audio
Workstations (DAWs) and other random access audio or video
editing systems which require an external master transport as a
low cost, rapid response alternative to a real VTR. The VM01 can
also be used enable two machine controllers to share transport
control of a single VTR.
An external video sync signal may be connected to the VM01 to
ensure that transport motion speeds and LTC framing are properly
referenced. This will ensure that all cumulative drift is
eliminated. The frame rate of the external video sync signal is
monitored and used to switch the unit between PAL (25 fps) and
NTSC (30/29.97 fps) operation modes.
The provision of twin transport control ports enables the control
of the VM01 to be shared by two controlling devices in a single
installation.
The system software will also monitor the VTR port for the
presence of an external machine. If connected, transport commands
from either external controlling device will be passed to the
external VTR, and the transport position and status of the VTR
will be reported and used to generate LTC. In this way the VM01
provides dual control and LTC output for a range of external
devices such as VTRs and Video disk recorders.
The VM01 has been developed to provide LTC and virtual transport
operation to professional random access systems such as the Solid State Logic
range of products including Axiom, Aysis, Scenaria, OmniMix,
ScreenSound and VisionTrack.
The VM01 Virtual Machine
The low cost Virtual VTR:
Digital Solutions (UK) Limited
109 Byewaters
Watford
WD18 8WH
Phone: (+44) (0) 1923 213233
email:
info@digitalsolutions.co.uk
