Dirac Live Exclamation Mark issue

[ppataki]

Did the calculated delays make sense? That is the biggest problem I have had.

They were perfect for all channels

Note that I use UMIK-2 that has its own clock source (unlike UMIK-1) and hence it can measure acoustic delay in a much more precise and consistent fashion

 

[pogo]

But it's not just the own clock that produces a better result. The lower self noise also makes it easier to calibrate. With a UMIK-1 you should calibrate with 85dB if possible.

 

[levimax]

I have a Earthworks M23 with a good interface so the crazy delays I got (125 ms for a sub 6 ft from the LP) were not because of the MIC but rather something wrong with the program, the release notes talk about it. It sounds like they are working hard to sort the problems out, I hope they are successful.

 

[pogo]

Dirac is fighting on various fronts. A different computer setup can also lead to success. In any case, you should terminate all unnecessary processes. You could also reset the network/router.

 

[Aventador_SVJ]

I just tried the new beta and I did not have any imprecise measurement errors
I did a 9-point measurement and everything went smoothly, no issues or any kind of error messages whatsoever
I am happy to report that it seems that Dirac finally got fixed - although it would be great to hear from others sharing their experience too

Does this now mean that we can move on from Dirac 3.4.4 to 3.11 now for Arcam receivers?

 

[C3KO]

They were perfect for all channels

Note that I use UMIK-2 that has its own clock source (unlike UMIK-1) and hence it can measure acoustic delay in a much more precise and consistent fashion

One question, is it worth buying a UMIK2 as opposed to a UMIK1, I mean purely from a sound perspective, is the result better?

 

[ppataki]

Does this now mean that we can move on from Dirac 3.4.4 to 3.11 now for Arcam receivers?

I would definitely give it a try

 

[ppataki]

One question, is it worth buying a UMIK2 as opposed to a UMIK1, I mean purely from a sound perspective, is the result better?

No; purely from a sound perspective you should not switch. But if you do acoustic timing reference measurements then you shall definitely switch - or if you see that the delay values Dirac measures are not realistic or highly inconsistent

 

[C3KO]

All right, thanks

 

[pogo]

acoustic timing reference measurements

This is exactly where Dirac Live needs precise data for proper processing. And currently this still seems to depend very much on the clock reference, which can vary depending on the hardware available. You should also bear in mind the masking effects of the UMIK-1, i.e. you should calibrate with at least 85dB.

 

[dweeeeb2]

This is exactly where Dirac Live needs precise data for proper processing. And currently this still seems to depend very much on the clock reference, which can vary depending on the hardware available. You should also bear in mind the masking effects of the UMIK-1, i.e. you should calibrate with at least 85dB.

so this update hasn’t cured the problem? I just can’t bring myself to test another Dirac update unless chance of success is atleast 75%

 

[ppataki]

Yesterday I re-calibrated my home office system too with version 3.11 beta using a 9-point measurement and I did not get any error messages whatsoever
And the result sounds superb!

 

[Sir Sanders Zingmore]

With a UMIK-1 you should calibrate with 85dB if possible.

I’ve seen this a few times but unsure what it means. The Dirac app doesn’t seem to give a dB reading when you are setting volume (maybe it does and I’ve missed it!)

 

[pogo]

You can use a separate SPL meter for this and adjust it correct during the DL level process.
For Dirac Live, you must be 30dB above the noise level. It doesn't matter whether it is ambient noise or noise generated by the electronics. 75dB is not enough with a UMIK-1, for example! See self-noise here (57dB(Z)): Link

 

[C3KO]

It doesn't work for me at such a high level, Dirac then says invalid measurement or something, I don't know exactly. For me it is always around 75 dB, measured with the Phone SPL app.

 

[Miniyouuuu]

I tried the new beta software at 75dB with my Umik-1. Noise level between 35 and 45db but no errors as previous versions of Dirac. 85dB in my living room would be higher than my neighbours patience. It make no sense to measure your room at higher volumes than those you usually listen to music, as your room has different response at different volumen.

To my ears, this new beta software makes more natural filters. Previous versions were focussed in precision at the cost of losing soundstage. Now I feel the soundstage remains or even opens but voices and placement of the middle of the scene is less accurate. Anyone has tried the beta version on MiniDSP Flex?

 

[pogo]

It doesn't work for me at such a high level, Dirac then says invalid measurement or something, I don't know exactly. For me it is always around 75 dB

If you are not using the UMIK-1, this may also be sufficient. With the UMIK-2 this is possible without masking effects, as the self-noise is lower here. I will measure our NAD mic more precisely when I get the chance
If you pull the lower curtain at DL to 30Hz or higher, it should also be OK with the UMIK-1. But then there is still the clock issue...

 

[PeterNL]

You can use a separate SPL meter for this and adjust it correct during the DL level process.
For Dirac Live, you must be 30dB above the noise level. It doesn't matter whether it is ambient noise or noise generated by the electronics. 75dB is not enough with a UMIK-1, for example! See self-noise here (57dB(Z)): Link

I am trying to re-calibrate my Dirac Live but not even able to manage it at 65-70dB because of Msg 210, error code 102, clipping detected :/

 

[pogo]

Which setup?

 

[PeterNL]

Which setup?

Thread 'Wharfedale Linton Heritage with Audiophonics HPA-S250NC first REW meauserements' https://audiosciencereview.com/foru...ics-hpa-s250nc-first-rew-meauserements.46058/

A few things have changed like new carpet and some furnitures, plants are growing fast....so I decided to re-calibrate Dirac, I have also bought good quality microphone stand boom...

I already managed to make new calibration. Looks little bit different than previously, sounds good, while I'am still not satisfied of 100-400Hz region.
Mdat files attached Dirac vs without Dirac: