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NTI DR2
Digirator Digital Audio Signal Generator

OUR PART #:  DR2-NTI

The Digirator DR2 is a reference-grade digital audio signal generator with transformer-balanced AES3, S/PDIF, TOS-Link and ADAT outputs.
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Our Price: $1,816.89
List Price: $1,850.00
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The Digirator DR2 is a reference-grade digital audio signal generator with transformer-balanced AES3, S/PDIF, TOS-Link and ADAT outputs.

Beside a comprehensive set of audio test signals, the DR2 also supports surround sound test sequences for verification and adjustment of professional Dolby Digital, Dolby E and DTS installations.  The internal low jitter clock generator can be synchronized to AES3, DARS, Word Clock and Video signals.  Measurement of channel transparency, channel propagation delay and sample frequency is supported.

Features:

  • Sine Wave, Noise, Polarity - A full range of digital audio test signals for maintenance, repair and calibration of professional audio equipment is generated.  User test signals may be stored as uncompressed WAV-files in the DR2 memory.
  • Multi Format SYNC Input - The DR2 accepts AES3, DARS, Word Clock and Video Black Burst (PAL and NTSC) synchronization signals. The input impedance of the sync input may be switched between 75 Ohm, 110 Ohm and High Z.
  • Channel Status Monitoring - Channel status information can be generated in professional and consumer format and the most important parameters may be manipulated manually.  Display of incoming channel status data is also supported.
  • Store Preset Configurations - Up to 10 complete instrument configurations can be stored in the internal flash memory and reloaded for repetitive tasks. The saved settings may also be transferred to other DR2 instruments.
  • Dolby Digital, Dolby E and DTS - The DR2 wave file player can play back multi channel bit stream files. A set of 5.1 test sequences for the verification and optimization of surround sound equipment and installations is stored on the unit’s flash disc.

Functions:

  • Channel Transparency Check - The DR2 tests whether a transmission channel is transparent for non-linear PCM signals and indicates if Dolby E, Dolby Digital and/or DTS bit streams can pass. This test is also suitable for any digital audio recording device.
  • Channel Delay Measurement - The propagation delay between any DR2 digital audio output and the XLR sync input (which accepts AES3 signals) may be measured and displayed in seconds or video frames.

Specifications:

  • Frame: Consumer/Professional, up to 24 bit audio
  • Output Sampling Frequency:
    XLR, RCA: 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
    Optical: up to 96 kHz
    ADAT: up to 48 kHz
  • Outputs:
    AES3 (110 Ohm) XLR
    S/PDIF (75 Ohm) RCA
    TOS-Link: Stereo and ADAT
    AES3id (75 Ohm) using optional adapter
  • Inputs: XLR Sync input for:
    AES3, DARS
    Video Black Burst (NTSC, PAL)
    Word Clock using BNC to XLR adapter (included)
  • Wave Forms:
  • Linear PCM:
    Sine, Polarity Test Signal, Delay Test Signal,
    Pink Noise (crest factor = 4.42),
    White Noise (crest factor = 3.47),
    Playback of Wave Files
  • Multi Channel:
    A comprehensive library of multi channel data streams is supplied in the following formats:
    Dolby Digital, Dolby E, Dolby ProLogic II, DTS
  • Wave File FormatL:
    Sampling freq.: 48 kHz
    Resolution: 16, 20, 24 bit, Mono + Stereo
  • Frequency setting:
    Range: 10 Hz - 20 kHz
    Increment: in 1 digit steps
    Accuracy: 0.01%
  • Stepped Sweep Function:
    Frequency range: freely selectable, 10 Hz-20kHz
    Increment: 1/1, 1/3, 1/6, 1/12 octave
    Sweep Speed: selectable 0.5-5 seconds per step
  • Continuous Sweep (Chirp) Function:
    Frequency range: freely selectable, 20 Hz-20kHz
    Increment: Linear/Logarithmic
    Chirp speed: 1.0 - 99 seconds per cycle
  • Level Units: dBFS, %
  • Output Level Range: -100 to 0.00 dBFS
  • THD+N: of generated sine wave: better than -138 dB
  • USB Functionality:
    Firmware update
    Mass Storrage Device
  • Flash Memory: 512 MBs for storing wave files and configurations
  • Display: Graphical, with back light
  • Auto-Power-Off: 10, 30, 60 minutes or OFF
  • Batteries: 3 x AA Alkaline dry cells or rechargeable equivalents;
    Battery Life typical 10 h
  • Temperature range: 0° to 45° C (32° to 113° F)
  • Humidity: < 90% relative humidity, non-condensing
  • Dimensions: 152 L x 81 W x 43 H mm (includes protective shock jacket)
  • Weight (including batteries): 310 g (11 oz.)

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