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Graff DigiMaster
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Graff DigiMaster
The Graff DigiMaster is for anyone who intends to make use of digital audio technology and still requires distribution of audio in the compact cassette format.
Many organisations are now becoming aware of the advantages of digital audio over analogue audio, particularly with regard to ease of editing, long term storage and audio quality. However, compact cassette is currently still a very dominant playback medium and is likely to remain so for some time.The Graff DigiMaster is designed to bridge this technology gap.
Based on personal computer (PC) technology, Graff have added specialised high speed digital to analogue conversion hardware and simple customised software which interfaces to standard cassette duplicators. In addition, customised hardware and software may be added to enable digital recording and editing, as well as the facility to burn a master CD for later duplication with GEM DigiTrax.
Since the master audio is stored in digital form, any number of copies can be made without degradation of the master normally associated with analogue master tapes.
- Record and edit masters.
- Store files.
- Burn master CD for separate CD duplication on GEM DigiTrax
- Duplicates digital audio from mono or stereo 'wave' files sampled at 44100Hz, 16bits per sample - other sampling rates possible.
- A separate 'wave' file, or silence, can be selected for each side of tape.
- Adjustable lead in silence for tapes with and without leader.
- Automatic alignment of side B start with side A end.
- Sides A and B copied simultaneously at 16x speed.
- Configurable to copy 'wave' files from any PC compatible media such as CD-ROM, hard disk, magneto optical, removable discs etc.
- Last copied digital audio stored on hard disk. Continue duplicating same audio at anytime without delay
- Connects to one or more Graff slaves. Connection to other slave copiers possible.
- Uses personal computer (PC) technology incorporating Graff designed hardware.
Compatible with all Graff expandable duplicators and current Sony, Telex and Otari audio cassette duplicators.
| Graff DigiMaster | |
| Audio Source | One digital audio file per tape side: The sourcefiles can be at any location accessible by thePC; for example - hard drive or CD ROM. |
| Audio file format/copy speed | Digital audio "wave' files: 16 bits persample, linear mono or (with stereo slaves) stereo.The standard build of the digital master copies 44100Hzsample rate files at 16 times speed. Special buildsfor other sample rates or copy speeds are possible. |
| Capacity | To fit compact cassette tape length required. |
| Digital audio storage | Ultra wide SCSI hard disk. |
| Digital to analogue conversion | GEM designed four channel high speed (16 times 44100Hz) digital to analogue converter. Output levels pre-settable to the requirement of slaves. |
| Slave control | Flexible slave interface and control logic which can be factory built and configured such that (with appropriate software drivers) it can control most slave copiers. |
| Frequency response | 300Hz - 200KHz ± 1dB (16x speed). |
| Distortion | < 0.1% @ 1KHz. |
| Dynamic range | 96dB. |
| Wow and flutter | Below measurable limit. |
| Crosstalk | < 50dB. |
| Power source | 230v 50Hz / 120v 60Hz. |
| The DigiMaster comprises: |
OPTIONAL FOR RECORDING MASTERS (SPECIFICALLY CUSTOMIZED TO SUIT REQUIREMENTS):
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