miniDSP HARMONY DSP 8X12 User Manual Download Page 1

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miniDSP Ltd, Hong Kong /

www.minidsp.com

/ Features and specifications subject to change without prior notice

ARMONY

DSP

12-

OUT

DVANCED

-C

UDIO

ROCESSOR

AND

OWER

MPLIFIER

WITH

IRAC

IVE

ACOUSTIC CORRECTION

User Manual

Summary of Contents for HARMONY DSP 8X12

Page 1: ...ong www minidsp com Features and specifications subject to change without prior notice 1 HARMONY DSP 8X12 8 IN 12 OUT ADVANCED IN CAR AUDIO PROCESSOR AND POWER AMPLIFIER WITH DIRAC LIVE ACOUSTIC CORRE...

Page 2: ...mber 2020 1 0 First public version 30 November 2020 1 1 Minor updates and corrections 16 December 2020 SUPPORTED OS The above are the only versions of the Windows and Mac operating systems supported b...

Page 3: ...SP software 12 2 2 3 Install the miniDSP software 13 3 Hardware Connectivity 14 3 1 Mounting 14 3 2 USB 14 3 3 TOSLINK Digital Audio 14 3 4 A2B 14 3 5 Remote Control 14 3 6 Power Supply and Remote Tri...

Page 4: ...5 7 1 5 Time delay 37 7 1 6 Invert and mute 37 7 2 Custom biquad programming 38 7 2 1 What s a biquad 38 7 2 2 Using custom biquad programming 38 7 2 3 Biquad design software 40 7 3 Working with confi...

Page 5: ...configuration of its settings As with any other product we recommend that you carefully read this manual and other technical notes to ensure that you fully understand how to operate this product The...

Page 6: ...dio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or r...

Page 7: ...o many configurations ranging from a simple stereo correction and EQ system through to integration of one or more subwoofers through to a complete active multichannel surround system Low noise digital...

Page 8: ...ll around Some features include Comprehensive bass management function to synthesize the subwoofer feed from speaker channels Up to 8 channels of Dirac Live correction with flexible assignment to outp...

Page 9: ...g area Dirac Live employs a sophisticated analysis algorithm to make the optimal correction across the whole listening area not just at a single point The user has full control over the target respons...

Page 10: ...ttings Do not run the application yet 2 1 2 Download the miniDSP software If you purchased your processor directly from miniDSP your software will be available from the User Downloads section of the m...

Page 11: ...atest version of Adobe Air Microsoft Visual C 2010 Redistributable Package for x86 32 bit Windows or x64 64 bit Windows 2 1 3 2 Install the plugin 1 Navigate to the Plugins folder of the software down...

Page 12: ...tion yet 2 2 2 Download the miniDSP software If you purchased your processor directly from miniDSP your software will be available from the User Downloads section of the miniDSP website when your orde...

Page 13: ...to the Plugins folder of the software download and then to the Mac folder 4 The installer is named C DSP 8x12 DL pkg To run it double click on it or right click and open as described above We recommen...

Page 14: ...e it in a closed console with no ventilation 3 2 USB The USB 2 0 Type B port is used for Configuration and calibration with the miniDSP plugin and with DiracLive Connect to an available USB port on yo...

Page 15: ...1 There are three modes for the outputs This is set for each output channel using the plugin 1 Line level output Line level outputs are a balanced output with full scale output of 5 VRMS Connect the a...

Page 16: ...ot shows the C DSP 8x12 DL plugin with the key areas highlighted We recommend that you do a straight through Dirac Live calibration before attempting more advanced configuration with the plugin This w...

Page 17: ...fter downloading the configuration data the plugin is in online mode and any changes to processing parameters will be downloaded immediately in real time That is the user interface is now live Synchro...

Page 18: ...the DiracLive application by itself it will not be able to detect the Harmony DSP 8x12 processor 4 3 2 Configuration preset selection The set of data that controls the back end processing is called a...

Page 19: ...can be varied from 72 to 12 dB To set which channels are controlled in subwoofer volume mode see page 29 The current values for master and subwoofer volume are displayed in the plugin while connected...

Page 20: ...ach output channel is processed with crossovers parametric EQ and gain and delay The signal processing is configured by two different programs the DiracLive application for Dirac Live and the C DSP 8x...

Page 21: ...ed from the speaker channels The Harmony DSP 8x12 provides superb control over subwoofer integration including fine grain frequency settings accurate time delay and steep crossover slopes The level me...

Page 22: ...to the corresponding output channel labels along the top is displayed in yellow Any number of input channels can be mixed to each output channel Note To rename an input channel click on its label and...

Page 23: ...ere is an example The Input and Output columns display the current signal level at the inputs and outputs of the Dirac Live processing block while Gain and Delay display the gains and delays calculate...

Page 24: ...top This is the default Mixer tab When a cross point is turned on the Dirac Live signal at the left is routed to the output channel at the top In the default routing Dirac1 is routed to Output1 Dirac...

Page 25: ...s All output channels are identical This screenshot shows channels 1 to 6 Each output channel has a complete strip of controls with customizable label level meter gain adjustment signal processing see...

Page 26: ...ine Out BTL or PBTL Even numbered channels can be selected between Line Out or BTL Note that output mode is independent of the selected preset configuration Because PBTL mode applies to a pair of chan...

Page 27: ...rac Live calibration with the C DSP 8x12 DL is described in the separate miniDSP Dirac Live User Manual Be sure to start the DiracLive application from within the C DSP 8x12 DL plugin using the Start...

Page 28: ...nmute Press and hold the control knob To change the volume control mode Quickly press the control knob then rotate until either Master or Sub is displayed Either press the control knob again or wait f...

Page 29: ...y number of channels can be selected for subwoofer volume control mode From within the C DSP 8x12 DL plugin drop down the Display menu and select Subwoofer Channels Selection The selection dialog appe...

Page 30: ...increase the volume Each press changes the volume in 0 5 dB steps Holding down a button will accelerate the rate of volume change Media control Has no effect with the Harmony DSP 8x12 Dirac Live Enab...

Page 31: ...ny Philips RC6 To initiate the learning process start the C DSP 8x12 DL plugin and click on the Connect button Once connected drop down the IR Remote menu and select IR learning Click on the Learn but...

Page 32: ...he current signal level in real time The plugin must be in online mode to display signal levels Gain adjustment The gain of each channel can be adjusted by moving the Gain Adjustment slider or by typi...

Page 33: ...nse of all enabled filters on that channel For example the screenshot above shows a response curve created with a low shelf boost filter at 100 Hz a dip at 500 Hz and a high shelf cut filter at 5000 H...

Page 34: ...HELF and LOW_SHELF filter types this is the frequency at which the gain is half of the set value For the ALL_PASS filter type this is the center frequency of the phase shift Gain For the PEAK filter t...

Page 35: ...frequencies from the signal sent to the tweeter In a three way speaker the midrange driver will use both the high pass and low pass filters Crossover filters can also be used to limit low frequency c...

Page 36: ...Butterworth BW Available in 6 12 18 24 30 36 42 and 48 dB octave Butterworth crossover filters are 3 dB down at the cutoff frequency Linkwitz Riley LR Available in 12 24 and 48 dB octave Linkwitz Rile...

Page 37: ...tance is shown in cm when the cursor is hovered over the time delay box The maximum time delay of 20 ms corresponds to a distance of approximately 6 9 meters about 22 5 feet The delay can also be disp...

Page 38: ...ad A biquad is the basic unit of processing that is used to create digital filters It can be described either with an equation or with a signal flow diagram as shown here A single biquad like this can...

Page 39: ...83864 b1 1 9950521500467384 b2 0 996920046761057 a1 1 9950521500467384 a2 0 9951112472449212 biquad2 b0 0 999640139948623 b1 1 9981670485581222 biquad3 biquad4 biquad10 b0 1 0010192374642126 b1 1 9950...

Page 40: ...sure to set the sample rate to 48 kHz on any worksheet that you use 7 2 3 2 Room EQ Wizard REW Room EQ Wizard REW is a free acoustic measurement and analysis tool available for Windows Mac and Linux...

Page 41: ...he next time the plugin is synchronized to the processor the parameters will be downloaded to the processor provided the Synchronize Config button is selected The configuration contained in the miniDS...

Page 42: ...SP 8x12 does not have an SD card slot so while the menu option Save all configuration to SD card can be used to save a file it cannot be reloaded into the Harmony To load a configuration from a saved...

Page 43: ...will take place in the user interface only and the new configuration data will be downloaded to the processor next time it is synchronized 7 4 KEYBOARD SHORTCUTS The C DSP 8x12 DL plugin supports the...

Page 44: ...udio output A2B multichannel for linking amplifiers future option via firmware upgrade Analog output modes selectable from plugin BTL bridge tied load mode for nominal 4 loads absolute minimum 2 PBTL...

Page 45: ...RMS 4 load BTL mode 6 x 80 W RMS 2 load PBTL mode THD N 0 03 f 1 kHz 30 mW to 40 W 4 load BTL mode 0 08 f 1 kHz 30 mW to 80 W 2 load PBTL mode SNR 107 dB f 1 kHz A weighted 40 W into 4 BTL and PBTL m...

Page 46: ...section of the miniDSP website then extract it on your computer on Windows right click and select Extract All on Mac double click DO NOT DISCONNECT THE USB CABLE OR POWER FROM THE PROCESSOR WHILE FIRM...

Page 47: ...der of the software download It will have a name like Harmony_8x12_v1 4 bin The version number v1 4 may change 5 Click on the Start button 6 You will get a progress bar as the upgrade proceeds 7 Once...

Page 48: ...nnect the Harmony DSP 8x12 to your computer via USB if not already connected and power it on 2 Navigate to the XMOS_Firmware Firmware_Upgrade_Tools Mac folder of the software download 3 Double click o...

Page 49: ...der of the software download It will have a name like Harmony_8x12_v1 4 bin The version number v1 4 may change 5 Click on the Start button 6 You will get a progress bar as the upgrade proceeds 7 Once...

Page 50: ...all the latest version of the C DSP 8x12 DL plugin Connect the Harmony DSP 8x12 to the computer with a USB cable run the plugin and click the Connect button Drop down the Restore menu and select Updat...

Page 51: ...ing from your source b Check that your source is playing audio and that it is not muted or have volume control turned down c Check that the plugin is synchronized with the hardware unit 5 Low audio on...

Page 52: ...previous page 2 Check the forums on miniDSP com to see if your issue has already been raised and a solution provided 3 Contact miniDSP via the support portal at support minidsp com with a The specific...

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