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Forum: Receivers, Amps, and Processors   03-02-2015, 06:04 AM
Replies: 2,552
Views: 63,380
Posted By markus767
^ Do you now own a 88A? How did you send REW's...

^
Do you now own a 88A? How did you send REW's test signal to the speakers? HDMI? Which channels?
Forum: Receivers, Amps, and Processors   03-02-2015, 03:15 AM
Replies: 762
Views: 58,967
Posted By markus767
By the way, nice paper about Unison in the latest...

By the way, nice paper about Unison in the latest JAES:
Multichannel Room Correction with Focus Control, LARS-JOHAN BRÄNNMARK AND ANDERS AHLÉN

It "just" works at lower frequencies but this is...
Forum: Receivers, Amps, and Processors   03-01-2015, 11:40 AM
Replies: 2,552
Views: 63,380
Posted By markus767
SherazNJ You assume that a flat curve would...

SherazNJ

You assume that a flat curve would be better. That assumption might be wrong.
http://www.dirac.se/media/12044/on_room_correction.pdf
Forum: Audio Theory, Setup, and Chat   03-01-2015, 11:32 AM
Replies: 13,744
Views: 396,071
Posted By markus767
No contradiction. If you adjust BOTH settings...

No contradiction. If you adjust BOTH settings you'll be fine but if you adjust only one then calibration will be off.
Forum: Receivers, Amps, and Processors   03-01-2015, 02:15 AM
Replies: 762
Views: 58,967
Posted By markus767
When reading posts 676...

When reading posts 676 (http://www.avsforum.com/forum/90-receivers-amps-processors/1617090-emotiva-xmc-1-owners-only-thread-23.html#post32143937) it sounds like Unison would be XMR only. Probably...
Forum: Audio Theory, Setup, and Chat   03-01-2015, 02:05 AM
Replies: 13,744
Views: 396,071
Posted By markus767
Correct. You need to change the sens factor in...

Correct. You need to change the sens factor in the calibration file the exact same amount you've changed the hardware gain setting. This will retain level calibration.
Forum: Receivers, Amps, and Processors   03-01-2015, 01:00 AM
Replies: 2,552
Views: 63,380
Posted By markus767
Yes, measuring outside can work very well. ...

Yes, measuring outside can work very well.

miniDSP have some basic tutorials online:
http://www.minidsp.com/applications/digital-crossovers/digital-crossover-basics...
Forum: Receivers, Amps, and Processors   03-01-2015, 12:45 AM
Replies: 2,552
Views: 63,380
Posted By markus767
Setting filters in a digital EQ is very simple...

Setting filters in a digital EQ is very simple but you first need to measure under anechoic conditions in order to get a crossover (passive or active) right, especially at lower frequencies. That's...
Forum: Audio Theory, Setup, and Chat   02-28-2015, 02:35 PM
Replies: 13,744
Views: 396,071
Posted By markus767
^ That is correct. The sensitivity factor is...

^
That is correct. The sensitivity factor is (also) based on the hardware gain setting. Don't change it or the calibration will be off.
Forum: Official AVS Blu-ray Disc Reviews   02-28-2015, 02:26 PM
Replies: 58
Views: 2,436
Posted By markus767
Just saw the movie. The surround mix is...

Just saw the movie. The surround mix is fantastic. I wish more mixers would/could adopt that style.
Extra points for the drum recordings.
Forum: Audio Theory, Setup, and Chat   02-28-2015, 02:13 PM
Replies: 13,744
Views: 396,071
Posted By markus767
Newer ones are 18dB. Don't change the settings if...

Newer ones are 18dB. Don't change the settings if you don't have a calibrator. If you're unsure contact miniDSP support with your mic's serial number.
Forum: Audio Theory, Setup, and Chat   02-27-2015, 01:35 PM
Replies: 13,744
Views: 396,071
Posted By markus767
The setting shouldn't cause any issues because...

The setting shouldn't cause any issues because the mic is level calibrated by miniDSP with that specific gain setting. My mic is set to 18dB and has its sensitivity factor set to -.7976dB. A mic with...
Forum: Audio Theory, Setup, and Chat   02-27-2015, 11:46 AM
Replies: 13,744
Views: 396,071
Posted By markus767
Older UMIK-1's used a 12dB gain setting, the...

Older UMIK-1's used a 12dB gain setting, the newer ones are set to 18dB.
Forum: Receivers, Amps, and Processors   02-27-2015, 03:53 AM
Replies: 2,552
Views: 63,380
Posted By markus767
^ Please re-read the original question. The 88A...

^
Please re-read the original question. The 88A has no matrix mixer. You can only map one input to one output.
Forum: Audio Theory, Setup, and Chat   02-27-2015, 02:50 AM
Replies: 13,744
Views: 396,071
Posted By markus767
Yep, that was my point. Thanks for showing these...

Yep, that was my point. Thanks for showing these graphs.



Excellent question and no good answer to it. Objective listening tests could give an answer.

People often think that looking at...
Forum: Receivers, Amps, and Processors   02-27-2015, 01:40 AM
Replies: 2,552
Views: 63,380
Posted By markus767
No.

No.
Forum: Receivers, Amps, and Processors   02-27-2015, 12:57 AM
Replies: 2,552
Views: 63,380
Posted By markus767
Dirac Live is a speaker/room correction system so...

Dirac Live is a speaker/room correction system so it does not need to know anything about the signal going into it. It filters the input signal so it is "correct" when the signal leaves the speaker...
Forum: Receivers, Amps, and Processors   02-27-2015, 12:50 AM
Replies: 2,552
Views: 63,380
Posted By markus767
^ I referred to bass management. If you don't...

^
I referred to bass management. If you don't use any bass management then having the 88A upstreams works just fine.
Forum: Audio Theory, Setup, and Chat   02-26-2015, 09:39 AM
Replies: 13,744
Views: 396,071
Posted By markus767
It tells you there's probably an overall delay...

It tells you there's probably an overall delay that you should remove from the IR.
Forum: Receivers, Amps, and Processors   02-26-2015, 09:17 AM
Replies: 2,552
Views: 63,380
Posted By markus767
^ Not a good idea if bass management happens...

^
Not a good idea if bass management happens downstream. There has been quite some discussion about it on the miniDSP forum:...
Forum: Audio Theory, Setup, and Chat   02-26-2015, 05:43 AM
Replies: 13,744
Views: 396,071
Posted By markus767
Don't forget that this data probably contains all...

Don't forget that this data probably contains all room interaction so the GD plot is misleading. Our hearing gets better at separating direct from reflected sound as frequency is rising. One would...
Forum: Receivers, Amps, and Processors   02-26-2015, 04:00 AM
Replies: 2,552
Views: 63,380
Posted By markus767
DL doesn't aggressively try to make the response...

DL doesn't aggressively try to make the response as wide as possible. There is a limit. How exactly it determines high and low frequency cutoff is not known at this point.
So look at the curves in...
Forum: Receivers, Amps, and Processors   02-26-2015, 03:00 AM
Replies: 2,552
Views: 63,380
Posted By markus767
Bass management and crossover filters are applied...

Bass management and crossover filters are applied BEFORE the 88A. So you DO want Dirac Live create a flat response above the sub's crossover point otherwise the filter slopes of sub and satellites...
Forum: Receivers, Amps, and Processors   02-23-2015, 11:31 PM
Replies: 2,552
Views: 63,380
Posted By markus767
http://www.avsforum.com/forum/attachment.php?attac...

http://www.avsforum.com/forum/attachment.php?attachmentid=564745&stc=1&d=1424759460
Forum: Receivers, Amps, and Processors   02-21-2015, 01:22 AM
Replies: 2,552
Views: 63,380
Posted By markus767
If there's a "timing error" caused by digital...

If there's a "timing error" caused by digital sampling then the signal contains frequencies above the Nyquist frequency.
Are there sounds with higher frequencies in the real world? Yes. Do we hear...
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