TOPIC:

Hello

Yesterday, I run my minidsp SHD studio for first time. As beginner, I need time to install and align everything.
Here my questions:

1) Running Dirac: I noted to have the "sweep frequencies" from L and after R channels when Dirac1 is highlighted
                          instead I have the sweep freq ONLY from L channel when Dirac2 is highlighted ? Bug or is it correct behavior ?
                          (my external DAC connected by SPDIF outputs: 3 & 4 and I was expeting the same behavior for DIrac1 and DIrac2)

2) SHD install a "special" DIRACapp, can I use the licenze code (code read from SHD app )
                          to install the official DiracApp, from dirac site, that seems more updated as release ?

3) How to recognize if is the Neo3 platforms or previous Neo2 platforms installed in SHD ?
                                      (Neo2 or Neo3 are different ARM hardware installed in SHD)
                            
best regards!
Any help is appreciated and thanks in advance.

 

i just did the install and setup calibration of dirac on my shd studio.
1) dirac 1 is highlighted for left and right sweeps, dirac 1 for both combined.
i use SPDIF 3&4 for subwoofers and AES/EBU xlr for main speakers. 

2) i installed dirac from main site, then launch dirac from minidsp plugin, and remember connect first. 
you dont need to login or use any code in the prosess. no idea what you mean by "app"  

3) i have no idea what neo3 is.

1) Running Dirac: I noted to have the "sweep frequencies" from L and after R channels when Dirac1 is highlighted
                          instead I have the sweep freq ONLY from L channel when Dirac2 is highlighted ? Bug or is it correct behavior ?
                          (my external DAC connected by SPDIF outputs: 3 & 4 and I was expeting the same behavior for DIrac1 and DIrac2)

I don't quite follow what you've written but the Routing section in the SHD plugin will determine which speaker is associated with Dirac 1 and Dirac 2. Check this is correct.

In answer to your other main question - yes you can download Dirac Live updates direct from the Dirac Live website. Regarding neo2 or neo3 the followig gives you a guide but I'm not sure how to categorically check. Does it matter?

www.minidsp.com/forum/announcements/1889...1-099-for-shd-series



 

Ultrasonic is right here.. Most likely a routing mistake. 
Default routing is IN1 to OUT1, IN2 to OUT2, IN1+2 = OUT3 (sub) .

You can modify your routing as you wish as per the manual. 

You can see if it's a NEO3 looking at the back. 
support.minidsp.com/support/solutions/ar...f-the-shd-do-i-have-

DevTeam

Thanks for fast answering

The pic is showing my setup (so you can try to reply the bug)

 

Dirac added 0.69msec delay on channel 2,  I think for time align of the 2 channels trought SPDIF connection.
and -0,1 dB dues to loudspeakers sound level difference.

I am going to reset everything and connect the DAC to SPDIF output1 & 2, as you suggested .

Best regards.

Could be wrong but maybe some crossover/muting on the outputs? 
Based on your matrix now, both OUT1&2 and OUT3&4 would be getting the sweep. You can test this with the 

We don't think there is any bug with such setup as we haven't modified the DIrac/SHD setup and this specific setup been used countless times..  
PLease start a support ticket for official line of support. (support.minidsp.com)

Hello

I did:  Restore all to default  (so my shd studio as new)
and run again Dirac live (last version)

Again, when dirac1 is highlighted (see the pic1), I hear the scan frequency first from the left and then from the right channel.



And when dirac2 is highlighted I hear the scan frequency ONLY from left channel...  Do you have the same behavior or
have you the scan frequency in left and right channels with dirac2 ?

This is my DiracLive results:
 
 

delay and gain are different from my previous run..
are them small random or different values because, now, DAC is connected to SPIDF 1 & 2 output?

Please, tell me, if I have to open a service ticket or less..
Thanks in advance.

matteos

Please, tell me, if I have to open a service ticket or less..

This would be the best thing to do. I could ask/check some more things but let's let miniDSP deal with this.

My mini DSP behaves exactly the same way I dont think there's anything wrong with yours. Dirac 1 and 2 mixes up but that's just a visual bug. Stereo Dirac live should do 3 sweeps left then right then left again. There's no combined sweep. 

jander13 wrote:

My mini DSP behaves exactly the same way I dont think there's anything wrong with yours. Dirac 1 and 2 mixes up but that's just a visual bug. Stereo Dirac live should do 3 sweeps left then right then left again. There's no combined sweep. 

I thought there was meant to be a combined sweep but checking the manual I think you're right. Page 32 of the miniDSP user manual states:

4.12.4 Run the first measurement
With the microphone placed in the exact center of the listening area, click on the Measure selected position button. The miniDSP processor will generate a test signal, audible as a frequency sweep through the left front speaker, then the right front, and so on through all channels. Finally, the frequency sweep plays through the left front speaker again.

Thinking about it there would also be no need for a combinied measurement since the separate measurements can just be summed. I wonder why the left one is measured twice though?

Since it became an option I've always used the delay to be out of the room for measurements, and so don't have any recent memory of quite what happens to go by! I think I was just getting mixed up in that the Dirac filter design factors in the combined signal.

Thank you. I am happy to don't have a defective unit.
Please, write a decent manual that reports how works Dirac, step by step, You are selling professional devices and documentations should be at same level.
Best regards

 

I've always felt the miniDSP / Dirac and miniDSP SHD manuals to be exemplary. Thorough and well written.

False.
I asked more questions in this thread and a other customer suggested me to open a service ticket because no answers we found in your "well done" manuals.
For example: no explanation why the delay between channels is 0.7 msec at the first measurement and is different at the second, (as if it were a random number). They do not explain principles of how measurement works. It does not explain the steps. and what to try to pay attention to to have more precision. There is no technical manual, with some measure of system performance, also to help the customer understand which connections are best for the device bought.
I find the manuals graphically beautiful as superficial and missing of detailed information. Best regards.

In your photo it looks like there is barely any signal from the mic. Maybe recheck your levels.

Thanks,
I thought I was careful to avoid noise during the measurement, even closed all the windows, but it is possible that some noise has entered.
I can't find an admissibility range in the manuals... Can I know what values you have in your system? To have an idea when I close a valid measure set.
Best regards.