AVR 8 NANO User Manual miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Additional items added to 12 Mar 2014 Troubleshooting Ethernet connectivity. 30 June 2014 Bass management information 28 Jul 2014 added, support portal link added. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Keyboard Shortcuts ..........................27 Using the nanoAVR ............................28 Status indicators ..........................28 Front panel controls ........................... 28 Infrared remote control ........................29 Acoustic measurement ..........................30 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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5.3.2 Automated method ........................33 Additional information ..........................34 Specifications ............................. 34 Troubleshooting ..........................35 MCU Firmware upgrade ........................36 Obtaining Support ..........................36 miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
MPORTANT NFORMATION Please read the following information before use. In case of any questions, please contact miniDSP via the support portal at minidsp.desk.com. YSTEM EQUIREMENTS To configure the nanoAVR, you will require a Windows PC or Apple Mac OS X computer with the following...
ISCLAIMER ARNING miniDSP cannot be held responsible for any damage that may result from the improper use of this product or incorrect configuration of the nanoAVR 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 nanoAVR is a powerful tool, and misuse or mis-configuration, such as incorrectly set gains or excessive boost, can produce signals that may damage your audio system.
The nanoAVR is a 2-input HDMI 1.4a switch combined with a sophisticated digital audio signal processor (DSP). The onboard floating-point SHARC processor combined with miniDSP’s signature audio processing and user interface software allows real time tuning and mixing of eight channels of uncompressed linear PCM (LPCM) audio.
Use an A/V receiver or preamp with 96 kHz support. † Apple Macs with a Thunderbolt port can be connected to the nanoAVR with the use of a Thunderbolt to HDMI adapter cable. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
To configure the nanoAVR via USB, connect the USB port of the nanoAVR to a USB 2.0 port on your computer using the supplied cable. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
(link-local) addresses will be assigned. For this to work correctly, your PC must be set to allow automatic IP addresses (that is, it must not be set to a static IP address). miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Subsequent to your purchase of the nanoAVR, the software will be available from the User Downloads section of the miniDSP website. This link is visible when you have logged into the site with the account you created when purchasing. There are two plugins available for the nanoAVR: ...
If you haven’t updated these recently, you should download and install the latest versions prior to running the miniDSP install program. To install the miniDSP software, open the Mac folder of the download, and double-click on the nanoAVR.dmg or nanoAVR_BM.dmg file to open it in a new window. Then double-click on the installer program, Install nanoAVR.app or Install nanoAVR_BM.app.
(“live”) control of all settings in the nanoAVR. This screenshot shows the nanoAVR 8x8 user interface window with the key areas highlighted: The above screenshot shows the standard nanoAVR plugin. The nanoAVR_BM plugin for bass management has an additional screen in the Selection tab.
It is recommended that the first time you connect, use Restore Config to ensure a known starting state. Thereafter, use Synchronize Config. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
A drop-down menu allows either HDMI 1 or HDMI 2 to be selected as the input source: The Mute button disables all audio output: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
-6 dB: Note: To rename an input channel, click on its label and type in a new name (maximum of eight characters). miniDSP Ltd, Hong Kong / www.minidsp.com...
The meters can also be used during normal operation to monitor for or to help locate level or gain structure problems. miniDSP Ltd, Hong Kong / www.minidsp.com...
For the PEAK and SUB_EQ filter types, this is the gain in dB at the center frequency. For the HIGH_SHELF and LOW_SHELF filter types, this is the gain in dB reached at high or low frequencies respectively. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Other filter types can be created by switching to Advanced mode. In this mode, the coefficients of each filter “biquad“ are entered individually. The coefficients will need to be calculated by a filter design program. A useful spreadsheet for a number of filter types is available on the miniDSP.com website – see the application note Advanced Biquad Programming.
Available in 12, 24, and 48 dB/octave, Linkwitz-Riley crossover filters are 6 dB down at the cutoff frequency. Bessel Available in 12 dB/octave only, a Bessel filter gives a more gradual roll off through the crossover region. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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For other types of filter and filter slopes, use Advanced mode. This mode allows you to enter the coefficients of eight biquads directly into the interface. The coefficients will need to be calculated by a filter design program. A useful spreadsheet for a number of filter types is available on the miniDSP.com website – see the application note Advanced Biquad programming.
The delay value can be entered numerically, and the up and down arrows can be used to change the delay in small (0.02 ms) increments. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
The nanoAVR_BM plugin contains an additional screen, named LFE Mgt: miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
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Note that the mix levels for the speaker channels are normally set 10 dB lower than the LFE channel—see the application note Bass Management with the nanoAVR for full details. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
(as long as the Synchronize Config button is selected). Changes are not lost between quitting and restarting the user interface. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
To load a configuration, first select the configuration preset that you wish to load the parameters into. Then drop down the File menu, select Load, and then Load configuration to current slot. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Crossover frequency and filter type PEQ filter frequency, gain, and Q Space The Space bar toggles buttons that have two states, such as Bypass, Invert, and Mute. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
To change the selected input Press and hold the control button. The LED indicating the selected HDMI input will switch to the other input. Release the button. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
This can be used instead of Config 1, Config 2 and so on. Once programmed, check that the programmed buttons perform the expected function. Note that changing the selected configuration preset with the remote will cause the user interface to disconnect. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
In the graph, the blue line shows the measured frequency response after correction with the parametric equalizer (PEQ) on the subwoofer channel. Figure 1. Sample bass frequency response measurement, before and after applying PEQ miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
To perform an acoustic measurement, connect a computer with HDMI or Thunderbolt output to one of the inputs of the nanoAVR and select that input. The miniDSP UMIK-1 measurement microphone (or other measurement hardware) can be connected to a USB input on the computer.
3 to 6 dB. Or, if less high treble emphasis is desired, this can be accomplished with a gentle high-shelf filter with a few dB cut at high frequencies. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Equalizing your home theater system with the nanoAVR and UMIK-1 Bass management with the nanoAVR miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Controls master volume, mute, HDMI input selection, preset selection Power supply 5 VDC single supply @ 600mA, 2.1 mm center-positive Dimensions (H x W x D) 31 x 161 x 110 mm miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Check that individual channels are not muted. Check that Master Volume is not at a low level. Double-check the routing screen to ensure that inputs are correctly routed to outputs. miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice...
Provided firmware update was successful, you can now continue to use the nanoAVR as before. 6.4 O BTAINING UPPORT 1. Check the forums on miniDSP.com to see if this issue has already been raised and a solution or solutions provided. 2. Contact miniDSP via the support portal at minidsp.desk.com with: a.
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