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The Digirator DR2 is a reference-grade digital audio signal generator with transformer-balanced AES3, S/PDIF, TOSLINK and ADAT outputs. The generator offers a wide range of test signals like sine, pink noise, white noise, polarity, delay, chirp and sweep.


The DR2 further offers a set of surround-sound test sequences for the verification and adjustment of professional digital environments including 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.

Generator Features

Sine Wave, Noise, Polarity, Delay, Chirp, Sweep


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.

Channel Transparency Check


The DR2 tests whether a transmission channel is transparent for nonlinear 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.

Measurement Functions

Mains Power Adapter


Mains Power Adapter with removable plug types. It suits the typical power sockets in Australia, China, Europe, Japan, US and UK. (Non original power supplies may cause interferences with the measurement.)


An optimized linear power supply adapter with EU-connector is available for unbalanced signal applications requiring a high signal-noise-ratio.

Ever-ready Pouch


The Ever-ready Pouch protects the instrument during transport and operation. With its convenient belt clip, the instrument can be kept close by for those tasks requiring both hands. The Ever-ready Pouch allows operation of the instrument while fitted in the pouch. MR2 requires additional Shock Protection Jacket.

Exel System Case


This compact system case provides the professional transport protection for work in the field. It offers space for the handheld instruments, cables and connectors.

Manufacturer Calibration Certificate


The calibration certificate lists the individual product data with serial number. The calibration and adjustment procedures follow the documentation and traceability requirements of the EN ISO / IEC 17025 standard.


Annual re-calibration of the instrument is recommended ensuring accurate measurements. Calibration certificates for new products have to be ordered together with the product.

Accessories for Digirator DR2

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DR2 Digital Audio Signal Generator

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