OpenDRC-DADigital to Analog floating point room correction DSP with SPDIF/AES-EBU/Toslink interface. Boxed in sturdy aluminum enclosure.
Introducing the OpenDRC platform, a range of cost effective digital audio processor with floating point capabilities. Powered by Analog Devices Sharc processors, the OpenDRC engine handles complex audio filtering such as room correction, FIR crossover filtering, reverb engines...Thanks to the flexibility of the platform and its high performance, OpenDRC supports a wide variety of applications.
The OpenDRC-DA (Digital to Analog) carries the most common stereo digital audio formats (AES-EBU, SPDIF and Toslink) on the input side. With its on-board Asynchronous Sample Rate Converter (ASRC), digital audio is converted to the proper rate. On the output side, the praised ES9023 DAC from ESS Tech provides outstanding analog audio performance. The learning remote feature and/or rotary encoder will allow control of your source, active preset or master volume without the need of any PC once the unit is configured.
- Room correction with FIR filtering
- Convolution engine for advanced/Custom filters
- 2 way advanced filter engine
- System equalization
What's in the box?
- 1 x OpenDRC-DA boxed in sturdy metal enclosure
- 1 x USB cable Type B
- 1 x Optical Toslink cable
- 1 Universal 5VDC power supply with interchangeable plugs for UK/EU/US/AU
UMIK-1, unique calibration file mircophone for accurate acoustic measurements
|Digital Signal Processor Engine||Floating-point Analog Devices SHARC DSP|
Internal Processing resolution
32-bit - 48/96kHz depending on plugin
2 in / 2 out
Audio Input Connectivity
Stereo Digital Inputs: AES-EBU (XLR), SPDIF (RCA)
Audio Output Connectivity
Balanced Analog Audio, XLR connector
Input / Output Max Levels
|Output Impedance||1.12 kΩ (560 Ω each signal pin)|
|Calibration Software||OpenDRC plug-in|
|Filtering Technology||FIR + IIR|
|DSP Presets||Up to 4 presets|
|Dimensions||52 x 180 x 200mm|
|Power||External 5V supply|
|Impulse Response Correction||✔|
|Infrared Remote Learning||✔|
|Room EQ Wizard Support||✔|
Applications notes on OpenDRC Series
Introducing the world of Digital Room Correction (DRC), a process where digital filters are used to correct speaker + room aberrations. A 3 step process yet an acoustical challenge where DSP & Math Gurus use all resources to solve this complex problem. The following lines will summarize the basics of room correction in a setup involving a PC/Mac with a measurement/filter generation software, a measurement microphone and an audio processor (OpenDRC).
AcourateDRC is the next generation of AcouratePRO software from Dr Ulrich Brüggemann. Designed with simplicity in mind, AcourateDRC exports filters who can be directly imported in the OpenDRC.
rePhase is a Windows-based freeware program written by Thomas (aka "pos"), a long time miniDSP community member. rePhase generates finite impulse response (FIR) filters that "reverse" the phase shifts introduced by a loudspeaker crossover. rePhase can also generate linear-phase crossovers. With the aid of a real-time FIR filtering engine or "convolver" such as miniDSP's OpenDRC or miniSHARC, the result is a linear-phase loudspeaker system.
This tutorial will provide a walk-through of filter creation using Filter Hose to linearize a loudspeaker frequency and phase response. Data will be exported to MiniDSP OpenDRC.
It's an honour to see Pat Brown from Synaudcon (www.synaudcon.com) using the OpenDRC + rephase + REW for a comprehensive review of the influence of FIR filters! His review is available on Prosoundweb.com and goes through a real life scenario of the advantage/limitations of FIR along with speaker design. A must read!
For more info on Synaudcon and the great learning/training sessions, make sure to check out their website.