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miniDSP Ltd – Hong Kong / Email : 

info@minidsp.com

 / Features and Specifications are subject to change without prior notice 

P 3 

1

 

Product Introduction 

 
The OpenDRC is a Digital Audio Signal Processor (DSP) capable of performing a wide range of processing including filtering (FIR + IIR), 
compression/limiter, time alignment..   Typically located between an audio source (CD player/Receiver/Preamp/PC .. etc) and the 

amplifier,  the  OpenDRC  will  provide  unparalleled  tuning  flexibility  to  improve  your  audio  system’s  performance.  Using  a  PC/Mac 
machine  and  a  USB  connection,  you  will  be  able  to  control  your  platform  from  the  “plug-in”:  an  intuitive  software  application 
allowing real time modification to your configuration.  

 

Besides its audio specs, a great part of our product concept lies in its simplicity of use. The sequence of steps required to control the 
unit can be summarized as follow: 

Connect the board to your PC/Mac machine using a USB cable 

Launch the plug-in to configure settings as required.  

Click “Connect & Synchronize” your PC to the board  

Once synchronized, any change is real time and does not require any “Synchronization”. All settings are also automatically 
saved to both the DSP and the Flash for long term memory.  

Once happy with your configuration, you can disconnect the board from your computer since from this point on, the audio 
configuration will run as last modified in on-line mode and recalled following every reboot.  

Enjoy!  

 
Minimum System Requirements for software installation 

The software minimum requirements are as follow:  
 

PC Environment 

1.

 

PC with 1GHz or higher processor clock speed recommended / Intel® Pentium®/Celeron® family, or AMD K6®/AMD 
Athlon®/AMD Duron® family, or compatible processor recommended. 

2.

 

512 megabytes (MB) of RAM or higher recommended  

3.

 

USB 2.0 port 

4.

 

Keyboard and mouse or compatible pointing device 

5.

 

Microsoft• ® Windows® Vista® SP1/ XP pro SP2/Win7 

6.

 

Microsoft• ®  

.NET framework v3.5

 

7.

 

Adobe AIR environment (latest version) 

8.

 

Adobe Flash player (latest version) 

 

MAC Environment 

1.

 

Intel based MAC with 1GHz or higher processor clock speed recommended  

2.

 

512 megabytes (MB) of RAM or higher recommended  

3.

 

USB 2.0 port 

4.

 

Keyboard and mouse or compatible pointing device 

5.

 

Mac OSX 10.4 or higher 

6.

 

Adobe AIR environment (latest version) 

7.

 

Adobe Flash player (latest version) 

 

Package content 

Your OpenDRC-AN package includes: 

 

1 x OpenDRC-AN unit  

 

1 x USB cable Type B 

 

1 x 5VDC universal power supply with interchangeable plugs for US, UK, EU, AU 

 

1 x short step by step startup guide 

 

Summary of Contents for OpenDRC-AN

Page 1: ...Hong Kong Email info minidsp com Features and Specifications are subject to change without prior notice P 1 OpenDRC AN USER MANUAL Manual revision Description Date V1 0 Initial revision 13 07 2012 www...

Page 2: ...Plug in Architecture OpenDRC 2x2 plug in 9 3 1 1 Main Page 9 3 1 2 Preset Memory selection 9 3 1 3 Main Tab 9 3 1 4 Input channel mode 10 3 1 5 Parametric Equalizer 10 3 1 6 FIR Finite Impulse Respons...

Page 3: ...tically saved to both the DSP and the Flash for long term memory Once happy with your configuration you can disconnect the board from your computer since from this point on the audio configuration wil...

Page 4: ...hat you have the software correctly configured and won t cause any damage to your system Finally this unit is a very flexible board and 99 of typical questions we receive at the tech support departmen...

Page 5: ...typical connectivity diagram for a basic setup with analog inputs analog outputs To prevent any damage make sure the board is turned OFF before doing any connection modifications Note that the compute...

Page 6: ...3 Return cable Analog unbalanced Audio Unbalanced audio connectivity Neutrik 3pin XLR connector can be achieved by linking Pin1 Pin 3 together Minus PIN1 Minus PIN2 Positive cable PIN3 Minus cable Ano...

Page 7: ...under Windows Once the configuration finalized the plug in will automatically boot up 4 You can now connect the OpenDRC board to one of the USB 2 0 port of your PC The device will be recognized as a...

Page 8: ...ded to the current plug in firmware along with the current settings you have b Restore to Default With this option the software application resets all settings back to factory default and reload the f...

Page 9: ...emories for a quick reconfiguration of the processor Under each configuration all settings of the platform are saved Placed at the top of the user interface simply toggle between configurations by cli...

Page 10: ...band selection Select one of the 6 x Parametric Equalizers Filter type Select between Peak Low Shelf High Shelf Bypass Disables the equalization but doesn t reset the settings A handy tool to check th...

Page 11: ...atted binary bin file is being loaded into the software Such file is using IEEE754 single floating point format and typically comes from one of our software partners In a manual input the FIR coeffici...

Page 12: ...n will pop up to announce how many taps were loaded 3 1 6 2 Manual input mode If your 3rd party software provides the filter taps in a text format you can copy and paste them to the dialog box providi...

Page 13: ...sover IIR Controls for the Low High pass filters are available when clicking on the Xover crossover button The log scale graph gives you the equivalent response of the applied filter By pointing the m...

Page 14: ...his plug in For complexity reasons inter plug in compatibility is not supported 3 2 2 Save configuration Use this feature to save your audio settings configuration The following dialog box allows you...

Page 15: ...on Point the remote to the IR receiver and press the button to learn the command A dialog box will confirm a successful learning and a green arrow appears once the command learned In case the platform...

Page 16: ...e firmware is incompatible with the installed software Step 3 Click OK and a Upgrade utility will automatically pop up Step 4 Click on Open Hex file to browse to the firmware file and browse to the fo...

Page 17: ...ure all levels are correct It s now time to connect your output sources and get your unit up running again If you have any questions feel free to get in touch with us 4 Technical Specifications Item D...

Page 18: ...m Features and Specifications are subject to change without prior notice P 18 USB port USB port type B for real time control and firmware upgrade Power supply 5VDC single supply 600mA 5V 2 1 round plu...

Page 19: ...ick Restore to Factory default while connected to the unit to reset its configuration We first recommend that you unplug your amplifier to reconfigure your audio path 2 2 Cannot reload configuration C...

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