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Digital Data and Audio Recorder

The Digital Data and Audio Recorder (DDAR) records the analog audio inputs receiving from four monitoring receivers, four operator mikes and data inputs from two Ethernet LANs and two RS-232 Ports and four voice annotation for data channel. The four monitoring receivers and the four operator mikes are connected with OPICOM that in turn connected to DDAR. The digitized audio signals or Ethernet data or RS-232 data are stored as separate audio and data files on the hard disk. It uses an inbuilt hard disk as a primary storage medium for record and replay. CD R/W drive is also provided for backup and restore. RAID configuration is provided for data redundancy (RAID1 - data mirroring) with two hard disks. DDAR supports audio and data compression for recording and on the fly replaying of the compressed audio/data files. While recording is in progress in one channel, operator can replay an existing file on a different channel. Two-row LCD display is provided to display the activity of the DDAR. VGA on LAN is also available to trouble shoot the DDAR using a Laptop/PC over LAN.

DDAR is capable to

Digital Audio and Data Recorder

Features

  • Sixteen channel digital data and audio recorder
  • Audio File formats: .wav (default), .mp3 (Compression and Backup)
  • Data File Format: .dat
  • Instantaneous playback ofselected channel
  • Headphone connector on front panel
  • Display connectivity to external monitor on front panel (D-type VGA)
  • Played Audio O/P to be available simultaneously on Line out, Local Headset
  • Accept Audio input from any analog sources (viz. microphone or communication receiver)
  • Book marking while recording and replaying
  • Text annotation for each bookmark up to 1 kb size
  • Repeated replay of selected portion
  • Indication of balance memory of HDD in GUI
  • Recording on any channels while playing any stored files
  • Primary recording medium – HDD, Back up media – CD
  • Voice annotation linked to recording channels
  • Ethernet/RS-232 Data Recording/Replaying with voice annotation
  • GPS time Synchronization

Specifications

Input Output Hardware Processor
Input
No. of audio input channels 12 (simultaneous recording of four Receiver inputs, four mikes of four operator’s headsets and four voice annotation for data channels)
Audio Card ADC Quantization 16 Bit Or Higher
Sampling Rate 44,100 Hz
Input Audio Signal Level 0.4 to 2 V rms +_ 0.2 V rms
Input impedance 600 Ohms
Recording media 2 x 256 GB Hard disc
Recording Format .wav (audio), .dat (data)
No. of Ethernet LAN inputs 2 (same Ethernet ports for I/P & O/P)
No. of RS-232/RS-422/Rs-485 inputs 6 (any of 2 selectable)
Visual indication of input signal level of audio while recording (in local mode of operation)
Monitoring through local headset while Recording
Files Restore to DDAR from CD/FD: .mp3 to .wav
Output
No. of audio line outputs 12
Line output voltage 1 V rms ± 0.2 V rms
Output impedance 600 Ohm
Distortion (At 1 kHz 1 V Sample) <= 5%
Playing Media Hard Disc
Play Format .wav (audio), .dat (data)
No. of Ethernet outputs 2 (same Ethernet ports for I/P & O/P)
No. of RS-232/RS-422/Rs-485 outputs 6 (any of 2 selectable)
Visual indication of output signal level of audio signal while playing (Only in local mode of operation)
Backup Storage CD, Flash drive(FD)
Backup to CD /FD .wav to .mp3
Hardware
Industrial PC, 2.4 GHz Intel Pentium IV Processor or above
RAM 4 GB
HDD 2 x 256 GB (RAID 1 Configured)
LANs 2 Port (I is for Data Recording and II is for Data Replay)
RS-232 Ports 2 Port ( For Data Recording)
USB 4 ports (2 front and 2 back)
Twelve channel ADC/DAC card 2No. (Four Receivers and eight Voice Annotations)
Audio Routing card (ARC) 1 No.
Headset with Mike 1 No.
CD writer 1 No. (Write 24 x, Rewrite 10 x, Read 24 x) or equivalent
D type VGA Port in the front Panel and a VGA MS circular connector at rear panel
Built in speaker with volume control
Built in power supply
19” standard rack width, 3U height, and 460 mm depth (excluding connectors)
230 V AC ± 10%, 50Hz single phase, 400 Watts
Interface with other units Communication receivers/Tape recorder and External LCD monitor, Mouse & Keypad.
Processor
Processor core Intel Dual core
Processor Number I5-520M
Bit computing 64 bit computing
Clock speed 2.4 GHz
Thermal design power 35 W
Package type 988-pin micro FCPGA
Manufacturing process 32 nm
Cache memory 3 MB
Integrated graphics Intel HD graphics with dynamic frequency
Number of Threads 4 Nos