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Digital Voice Recording System
The Digital Voice Recording System (DVRS) was developed by ADI to provide a cost effective and flexible solution for the Royal Australian Navy's (RAN) commitment to fit recording facilities to all Fleet Units by 2003. The DVRS records and replays external and internal voice communication circuits on HMA Ships.
Overview
The DVRS comprises five main elements:
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Element |
Description |
|---|---|
|
Digital Voice Recording Equipment (DVRE) |
Samples audio signals and records the processed digital signal onto the LTSM |
|
Communications System Interface (CSI) |
Within the DVRE, interfaces between the DVRE and the audio circuit to be recorded |
|
Long Term Storage Medium (LTSM) |
Within the DVRE, provides a long-term storage facility for the recorded signals |
|
Uninterruptible Power Supply (UPS) |
Provides the DVRS, supply voltage and auxiliary power in case of mains failure |
|
Bridge Microphone System (BMS) |
Enables conversations on the bridge to be recorded |
The system is ruggedised and designed to provide a record and replay facility for up to 20 external and internal voice circuits in a variety of applications, whilst providing a separate unit with a replay capability only.
Features & Benefits
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| Digital Voice Recording Engine | ||||
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- The system has been designed and tested to meet EMI / EMC (AS/NZ 3548), shock, vibration and TEMPEST (ACSI 72A) requirements
- The DVRE is an industrial standard Intel Pentium computer (four rack units high) running Microsoft Windows NT and state-of-the-art dedicated Multi-Channel Recording Application Software
- Sixteen independent channels, expandable to 20, can be recorded continuously or under VOX control
- Recorded channels are logged detailing time, date and circuit name
- The LTSM has dual DAT tape drives, which provide up to five days of recording time using standard industrial DDS-3 tapes
- Local alarms provide a range of warnings for a number of error states, including replacement of first LTSM 30 minutes before full to prevent missed recording
- Software has security features to control level of operator access and protect recorded data
- A UPS (two rack units high) provides auxiliary power in case of mains failure for over one hour
- The high performance BMS is housed in an EMI shielded die cast enclosure
Mini Communications Logger
A concept design exists for a mini DVRS (four rack units high) with a capability for six channel recording and built-in UPS, with an option for global positioning system (GPS).
Contact Information
For more detailed information, please contact:
Pieter Knower
DVRS Project Manager
ADI Limited
Tel: +61 2 9325 1760, Fax: +61 2 9325 1630, Email: pieter.knower@adi-limited.com
