miniDSP NANOSHARC User Manual Download Page 42

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miniDSP Ltd, Hong Kong /

www.minidsp.com

/ Features and specifications subject to change without prior notice

7.2

IRMWARE UPGRADE

miniDSP may occasionally provide an upgrade to the nanoSHARC MCU firmware to enable new features. To
upgrade the MCU firmware, first download the latest version of the nanoSHARC software package from the

User

Downloads

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

nanoSHARC

WHILE FIRMWARE UPGRADE

IS IN PROGRESS. DOING SO MAY “BRICK” YOUR

nanoSHARC

7.2.1

Windows

Connect the nanoSHARC (or Kit) to your computer via USB (if not already connected) and power it on.

Navigate to the

XMOS_Firmware\Firmware_Upgrade_Tools\Windows\miniDSPUAC2Dfu

folder of the

software download.

Double-click on the

miniDSPUAC2Dfu.exe

program to run it:

Summary of Contents for NANOSHARC

Page 1: ...miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 1 NANOSHARC 2 IN 8 OUT I2 S AUDIO PROCESSOR BOARD WITH FIR PROCESSING CAPABILITY User Manual...

Page 2: ...tions subject to change without prior notice 2 Revision history Revision Description Date V1 0 First version 22 Sept 2016 V1 1 Updated for dedicated plugin New firmware update tools 31 Aug 2018 V1 2 L...

Page 3: ...header pinouts 10 2 6 I2S overview 10 2 7 I2S details 11 2 8 Additional I2S usage notes 12 3 Software installation 13 3 1 Windows 13 3 1 1 Possible Windows installation issues 13 3 1 2 Plugin installa...

Page 4: ...iltering overview 33 4 7 2 FIR filter design software 33 4 7 3 Filter file format 33 4 7 4 Loading filter coefficients 34 4 8 Working with configurations 35 4 8 1 Online and offline mode 35 4 8 2 Sele...

Page 5: ...version Mac OS X Intel based Mac with 1 GHz or higher processor clock speed 512 megabytes MB of RAM or higher Keyboard and mouse or compatible pointing device USB 2 0 port OS X 10 8 or higher macOS 10...

Page 6: ...digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection This equipment generates uses and can radiate radio frequency energy and if not installe...

Page 7: ...plugins see Software plugins on page 8 The nanoSHARC is an evolution of miniDSP s existing audio processing solutions For those seeking a ready made in the box solution please see our 2x4 HD DDRC 24 a...

Page 8: ...C 2x8 96k 2x4 HD1 Internal sample rate 96 kHz 96 kHz Number of input channels 2 2 Number of output channels 8 4 Access to I2S input1 Access to I2S output1 Number of FIR taps total 3400 4096 Minimum FI...

Page 9: ...aged The power supply must be capable of supplying at least 300 mA at 12V DC 2 3 USB CONNECTIVITY Connect the mini USB port mini type B to a computer to configure the board The USB port also provides...

Page 10: ...LK 3 GND 4 MCLK 5 I2S_OUT0 6 I2S_OUT1 7 I2S_OUT2 6 I2S_OUT3 9 GND 10 GND 11 I2S_IN0 12 I2S_IN1 13 I2S_IN2 14 I2S_IN3 Not accessed by current plugins 2 6 I2S OVERVIEW I2S or Inter IC Sound is an electr...

Page 11: ...ugins 2 7 I2S DETAILS The nanoSHARC acts in master mode with respect to I2S clocking That is the nanoSHARC provides the I2S clocks and the connected devices are expected to transmit and receive data u...

Page 12: ...HD DDRC 24 and other products Be sure to take the following precautions when designing your I2S interface and wiring General I2S usage notes Unbuffered I2S lines must be kept short to ensure clock and...

Page 13: ...he dropdown menu at the top right of the website page Navigate to the OpenDRC miniSHARC nanoSHARC plug ins section and download the zip file under the heading nanoSHARC 2x8 96k Unzip the downloaded fi...

Page 14: ...inDrivers folder of the software download and double click on the appropriate installer miniDSP_UAC2_v2 29 3_ForWinXP_Vista exe for Windows XP and Vista miniDSP_UAC2_ v4 47 0_ForWin7_8_10 exe for Wind...

Page 15: ...e the mouse over the Open With item and then click on Installer default 3 The following window will appear Click on Open 3 2 2 Plugin installation 6 Navigate to the Plugins folder of the software down...

Page 16: ...r to the 2x4 HD User Manual Once the nanoSHARC is fully configured the computer is no longer required as source and preset selection can be done with a remote control If desired however the plugin can...

Page 17: ...any changes to processing parameters will be downloaded immediately in real time That is the user interface is now live Synchronize and Upgrade This is similar to Synchronize Config but also upgrades...

Page 18: ...set with the remote control The IP Address and Auto fields are for use with networked control of the plugin using the miniDSP WI DG Wifi Ethernet to USB bridge See the Wi DG User Manual for details 4...

Page 19: ...isplays two input channel control strips and the 2x8 routing matrix 4 4 1 Input selection When the plugin is connected to the nanoSHARC the currently selected input appears next to the Inputs label Cl...

Page 20: ...me 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 typing the desired gain into the Curre...

Page 21: ...that crosspoint The display will change from Off to On The matrix mixer makes the nanoSHARC adaptable to many audio processing situations The default routing is suitable for a stereo 4 way loudspeake...

Page 22: ...annel strip This label also appears on the Routing matrix To change the label click on it type a new label up to eight characters and press the Return key 4 5 3 Level meter and gain control Level mete...

Page 23: ...ing the combined response of all enabled parametric 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...

Page 24: ...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 25: ...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 content delivered to a speaker or subwoofer to help pr...

Page 26: ...enuated There are three types of filter 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...

Page 27: ...pass button to see the curve as shown here In this example the threshold is set to 20 dB so the compressor will activate when the signal on that channel reaches 20 dB relative to full output The ratio...

Page 28: ...s described more in FIR filtering and design starting on page 32 4 5 8 Invert and mute Each channel can be inverted in polarity and individually muted When either of these options is selected the visu...

Page 29: ...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 pe...

Page 30: ...is example illustrates the correct file format biquad1 b0 0 998191200483864 b1 1 9950521500467384 b2 0 996920046761057 a1 1 9950521500467384 a2 0 9951112472449212 biquad2 b0 0 999640139948623 b1 1 998...

Page 31: ...y filter types to be calculated including notch filters Linkwitz transforms and filters with arbitrary Q factor Access this spreadsheet here requires Microsoft Excel http www minidsp com images fbfile...

Page 32: ...ns a file browser to select a file containing FIR filter coefficients See Filter file format below Unload FIR Deletes the currently loaded filter from the display and from the DSP memory Send to DSP W...

Page 33: ...el must have 6 or more taps and can have no more than 2048 taps The decision on how many taps to allocate to each channel is up to you and should be determined after working with an FIR filter design...

Page 34: ...ients click Unload FIR and then Send to DSP In Manual Mode 13 Cut and paste the coefficients from the text output of the design program 14 Press the Process button 15 Confirm that the frequency respon...

Page 35: ...lly only The next time the plugin is synchronized to the processor the parameters will be downloaded to the processor as long as the Synchronize Config button is selected The configuration contained i...

Page 36: ...line mode the new configuration data will be downloaded to the processor immediately If the plugin is in offline mode the configuration will be loaded into the user interface only and will be download...

Page 37: ...o the next A blue grey surrounding box usually indicates the user interface element with the focus Shift Tab moves the focus in the opposite direction Up down arrows The up down arrow keys and in some...

Page 38: ...he same USB connector is used both for streaming audio and configuration 5 1 MAC OS X Open the program Audio MIDI Setup in Applications Utilities The nanoSHARC will in the list on the left hand side C...

Page 39: ...leave this setting at the default If you are having an issue with inadequate output volume over USB playback check the Volume tab To set the nanoSHARC as the default output device open the Windows Con...

Page 40: ...hanges the volume in 0 5 dB Holding down a button will accelerate volume change to 3 dB steps Mute Mutes and unmutes audio output The nanoSHARC can also learn the control codes of your current remote...

Page 41: ...onous Sample Rate Converter ensures compatibility with most sample rates from 20 216kHz Audio resolution 24 bit input and output nanoSHARC plugin 96 kHz internal sample rate Audio processing Analog De...

Page 42: ...s 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 nanoSHARC WHILE FI...

Page 43: ...lder of the software download It will have a name like nanoSHARC_XMOS_v1 7 bin The version number may be different 5 Click on the Start button 6 You will get a progress bar as upgrade proceeds 7 Once...

Page 44: ...thout prior notice 44 7 2 2 macOS OS X 1 Connect the SHD Series processor to your computer via USB if not already connected and power it on 2 Navigate to the XMOS_Firmware Firmware_Upgrade_Tools Mac f...

Page 45: ...er of the software download It will have a name like nanoSHARC_XMOS_v1 7 bin The version number v1 7 may change 5 Click on the Start button 6 You will get a progress bar as the upgrade proceeds 7 Once...

Page 46: ...et the processor by power cycling the unit b Make sure the processor is seen in the device manager as a HID device 4 Cannot reload a configuration a Confirm the file format of your file xml b Confirm...

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