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Forum: Receivers, Amps, and Processors   09-21-2016, 12:11 PM
Replies: 12,372
Views: 367,040
Posted By IgorZep
delay_to_set = DELAY_REF - excess_group_delay ...

delay_to_set = DELAY_REF - excess_group_delay
Changing target curves doesn't change excess_group_delay as all targets are minimum phase, so it should not change the delay_to_set too.
Forum: Receivers, Amps, and Processors   09-21-2016, 11:47 AM
Replies: 12,372
Views: 367,040
Posted By IgorZep
They either don't know anything about it and...

They either don't know anything about it and their bass management is completely independent of Dirac (most likely) and then something weird happened, or they know something and integrate with it,...
Forum: Receivers, Amps, and Processors   09-21-2016, 11:40 AM
Replies: 12,372
Views: 367,040
Posted By IgorZep
I can't too, except if one of the measurements...

I can't too, except if one of the measurements was wrong at sub channel calculations (due to bad S/N or some noise happened during it's measurement).
Forum: Receivers, Amps, and Processors   09-03-2016, 08:34 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
There are actually two issues with BM crossovers...

There are actually two issues with BM crossovers on the XMC-1.

1) Proper slopes and phase-matching of LPF and HPF parts of the crossover.
2) Ability for Dirac to correct all-pass non-linear phase...
Forum: Receivers, Amps, and Processors   08-31-2016, 11:04 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
I said that without pro kit it does not meet my...

I said that without pro kit it does not meet my expectations for cases when you change crossover frequency in relation to what XT32 has detected. Pro kit fixes the problem by allowing you to select...
Forum: Receivers, Amps, and Processors   08-31-2016, 10:45 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
I definitely can hear a difference when...

I definitely can hear a difference when crossovers, due to phase mismatch, create a null in otherwise flat frequency response. It is pretty big difference.
Forum: Receivers, Amps, and Processors   08-31-2016, 10:34 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
This is what I did. Denon X4000 (entry...

This is what I did.


Denon X4000 (entry XT32) + Pro Kit + Pro license.


Agree. Some Pioneer decisions look really strange. It looks like every piece of DSP is done by a separate team and they...
Forum: Receivers, Amps, and Processors   08-31-2016, 05:17 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
Audyssey target is 2nd order Butterworth on the...

Audyssey target is 2nd order Butterworth on the bottom. The only problem with it is that this target does not adjust to the selected crossover frequency, but always stays at what Audyssey is detected...
Forum: Receivers, Amps, and Processors   08-30-2016, 08:46 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
MiniDSP with Dirac got BM plugin comparably...

MiniDSP with Dirac got BM plugin comparably recently. But from what I observe on the thread it has Linkwitz-Riley crossovers, so should work well.


Dirac on PC is just a Dirac technology. Dirac...
Forum: Receivers, Amps, and Processors   08-30-2016, 07:15 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
No speaker follow THX rolloff once they...

No speaker follow THX rolloff once they Dirac-calibrated. Even THX ones. To make them THX-rolloff you need to dhaw that ... 2nd order Butterworth slope in the Dirac target, at appropriate frequency,...
Forum: Receivers, Amps, and Processors   08-30-2016, 06:58 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
May be I just don't have time to spent it on...

May be I just don't have time to spent it on buying things/selling/buying again process... Include on that time for research, testing, etc. Add to that accessibility of things in small country at the...
Forum: Receivers, Amps, and Processors   08-30-2016, 03:52 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
Was discussed in this thread (link to first...

Was discussed in this thread (link to first Keith's answer):
http://emotivalounge.proboards.com/post/744469/thread

And another one with more details:...
Forum: Receivers, Amps, and Processors   08-30-2016, 03:26 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
The DSP engine stopping at appearing string of...

The DSP engine stopping at appearing string of zeroes... is ridiculous! C'mon man, it is just a silence! Why need it make crappy noises from just a silence?
Forum: Receivers, Amps, and Processors   08-30-2016, 02:44 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
I don't know the single place where they are...

I don't know the single place where they are documented for XMC-1. But I don't know the one for the UMC-200 either (let me know how it looks / wher is it)... But the bugs I am very disappointed with...
Forum: Receivers, Amps, and Processors   08-30-2016, 02:24 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
Should I post a photo to prove that?

Should I post a photo to prove that?
Forum: Receivers, Amps, and Processors   08-30-2016, 02:21 PM
Replies: 5,451
Views: 234,343
Posted By IgorZep
Old story again. It is not about people who is...

Old story again. It is not about people who is critical. It is about a product BUGS, real and very well AUDIBLE. It is a poor sound when you happen to have a content that exposes the bug, and it is a...
Forum: Receivers, Amps, and Processors   08-30-2016, 10:59 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
There should be some food for optimism. Given...

There should be some food for optimism. Given that XMC-1 still has some serious issues with very core and basic signal processing, and they aren't going to be fixed - there are no reasons to be...
Forum: Receivers, Amps, and Processors   08-30-2016, 10:36 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
There will always be setup issues or that kind of...

There will always be setup issues or that kind of questions... So, it might also be a sign that sales are not as good as before and no new people are interested in XMC-1!
Forum: Audio Theory, Setup, and Chat   08-13-2016, 03:46 PM
Replies: 20,777
Views: 637,475
Posted By IgorZep
What should be demanded is not a sharper cutoff,...

What should be demanded is not a sharper cutoff, but proper implementation of 4th order Linkwitz-Riley cutoffs. The BM of the receiver is really poorly integrated with room correction in the...
Forum: Audio Theory, Setup, and Chat   08-13-2016, 01:07 PM
Replies: 20,777
Views: 637,475
Posted By IgorZep
The higher the slope the more ringing / phase...

The higher the slope the more ringing / phase distortion is introduced by the crossovers. So, selecting the crossover slope is always a compromise between rejection in frequency domain and time...
Forum: Audio Theory, Setup, and Chat   07-23-2016, 03:58 AM
Replies: 20,777
Views: 637,475
Posted By IgorZep
Spend last evening with some deep debugging on...

Spend last evening with some deep debugging on Windows and it seems this is true. On Win JavaSound only sees mono/stereo 8bit/16bit 44.1k from the DirectSound implementation. No 96kHz, no 24bit, not...
Forum: Audio Theory, Setup, and Chat   07-22-2016, 01:19 AM
Replies: 20,777
Views: 637,475
Posted By IgorZep
It is true that the simplest global query for all...

It is true that the simplest global query for all lines is not returning all lines and you need some guessing to find all the capabilities, but lines for 8 channel output (not stereo pairs trickery)...
Forum: Audio Theory, Setup, and Chat   07-21-2016, 12:17 PM
Replies: 20,777
Views: 637,475
Posted By IgorZep
Java does. REW doesn't utilize it...

Java does. REW doesn't utilize it...
Forum: Audio Theory, Setup, and Chat   05-24-2016, 04:58 AM
Replies: 20,777
Views: 637,475
Posted By IgorZep
This is less than the error you have at each of...

This is less than the error you have at each of your ears... So, nothing to worry about.
Forum: Receivers, Amps, and Processors   05-19-2016, 11:49 AM
Replies: 5,451
Views: 234,343
Posted By IgorZep
Let's hope. I don't feel it is worth to spend...

Let's hope. I don't feel it is worth to spend even more money on this thing if it continues to eat some sounds and produce other unpleasant sounds in return...

As it is a new hardware and some...
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