home *** CD-ROM | disk | FTP | other *** search
- IS THE PVR A NON-LINEAR EDITOR?
- From its inception, the Perception Video Recorder was
- envisioned as the heart of an integrated digital video
- workstation. Non-linear editing is just one possible use for the
- PVR-animation is another. Equipped with an AD-2500 video capture
- daughtercard, the PVR-2500 functions as a digital video recorder,
- providing unsurpassed picture quality and a storage capacity
- limited only by the size and number of attached SCSI hard drives.
- The standard PVR software provides some simple editing
- capabilities, but is not intended to replace time line-based
- editing software. Third party editing software can be used to
- directly control the PVR.
-
- CAN THE PVR CONTROL A VIDEO DECK?
- The DPS Perception Video Recorder can directly control any VCR
- which emulates the Sony BVU serial transport protocol. VCR-like
- controls on the PVR GUI simplify the task of batch digitizing and
- recording. In this mode, the PVR can read SMPTE time code from
- the source deck.
-
- HOW DO YOU CONNECT THE PVR TO A VCR?
- The physical interface between the PVR and a VCR or editor is
- via the computer's serial port. Because Sony compatible decks
- utilize a 38.4 KB, RS-422 interface, it is necessary to install
- an RS-232 to RS-422 adapter on the host computer's serial port
- before PVR VCR emulation and control modes can be used. It is
- also necessary to verify that a 16550 or equivalent UART is used
- for the computer's serial port in order to support data rates of
- 38.4 KB.
-
- IS THERE AUDIO SUPPORT?
- The DPS Perception Video Recorder can be used with any Windows
- NT compatible sound card. This provides a wide range of potential
- audio quality choices. Synchronization of audio and video is
- maintained by the PVR software. Some sound cards, such as those
- made by Turtle Beach, provide accurate system timing and have
- been found to consistently maintain synchronization during long
- video clips.
- Captured audio is stored on the computer's system hard drive,
- not on the dedicated PVR drive. This approach provides maximum
- flexibility for manipulating audio and video during the editing
- process. Products which interleave audio and video on the same
- hard drive compromise the total available video bandwidth and
- severely limit audio editing capabilities.
-
- HOW IS THE PVR DIFFERENT THAN THE DPS PAR?
- The Perception Video Recorder is a second generation design
- which incorporates new technologies such as a PCI bus interface,
- 10 bit, 2X oversampled video encoding and an integrated FAST SCSI-
- 2 hard drive controller. Standard video resolution is CCIR-601
- (720 x 480 NTSC, 720 x 576 PAL) for greater compatibility with
- other products. The dynamic range of the PVR is in excess of D1
- scaling so that images are brighter, have more color and greater
- spatial resolution than ever before. Other new features include
- seamless video looping, independent compression rates for each
- video field and virtually unlimited storage capacity.
- The optional live video capture daughtercard (AD-2500) provides
- a component (Betacam/MII) input in addition to composite and S-
- Video inputs. The PVR capture card entropy prediction circuit
- analyzes the content of incoming video and dynamically calculates
- the optimum amount of compression on a field by field basis.
-
- HOW IS THE PVR SIMILAR TO THE DPS PERSONAL ANIMATION RECORDER?
- The Perception Video Recorder, like the PAR, employs an
- integrated hard drive controller. Compressed video data never has
- to travel across the system bus on its way to the hard drive.
- This reduces the load on the CPU, provides extremely efficient
- data transfers and eliminates the possibility of dropped frames
- during recording and playback.
-
- WHAT VIDEO BANDWIDTH CAN I EXPECT FROM CAPTURED VIDEO?
- Full video bandwidth (>5.5 MHz) is maintained in component
- (Betacam/MII) and S-Video modes. The composite input is limited
- to heterodyne (VHS) resolution.
-
- WHAT VERSIONS OF NT DO YOU SUPPORT?
- The Perception Video Recorder software is available for Windows
- NT version 3.5 and later. Versions are available for Intel, DEC
- Alpha and MIPS processors.
-
-
-
-
-