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Showing results 1 to 25 of 1222
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Search: Posts Made By: Nyal Mellor
Forum: Audio Theory, Setup, and Chat   05-21-2015, 10:48 AM
Replies: 4
Views: 104
Posted By Nyal Mellor
I run into lip-sync issues with HDMI ALL THE...

I run into lip-sync issues with HDMI ALL THE TIME! It doesn't work more often than it works in my experience as an installer.
Forum: Speakers   05-20-2015, 06:59 PM
Replies: 3
Views: 88
Posted By Nyal Mellor
Optimal IMO is to use the same speakers for all...

Optimal IMO is to use the same speakers for all surround and ceiling locations.
Forum: Speakers   05-20-2015, 06:58 PM
Replies: 19
Views: 314
Posted By Nyal Mellor
Best is to use the same speaker for all three...

Best is to use the same speaker for all three "stage" speakers (left, center, right). That way you get a consistent soundstage and tonal balance.
Forum: Audio Theory, Setup, and Chat   05-20-2015, 06:57 PM
Replies: 4
Views: 104
Posted By Nyal Mellor
You want to adjust the AV Lip Sync adjustment in...

You want to adjust the AV Lip Sync adjustment in the AVR (can be called many things depending on mfg). You can either do this manually or buy a test disc to help.
Forum: Dedicated Theater Design & Construction   05-20-2015, 02:07 PM
Replies: 3,064
Views: 170,488
Posted By Nyal Mellor
A bit (WAY) too late to be talking about using...

A bit (WAY) too late to be talking about using different speakers seeing as he has already purchased nearly all of them and the layout has been done and the baffle wall has been built and the...
Forum: Dedicated Theater Design & Construction   05-20-2015, 10:39 AM
Replies: 5
Views: 115
Posted By Nyal Mellor
Looks like light control will be impossible...

Looks like light control will be impossible unless you frame in the room and put a door on it. Either a big TV or one of the ambient light rejecting screens (e.g. Seymour Screen Excellence Ambient...
Forum: Dedicated Theater Design & Construction   05-19-2015, 04:20 PM
Replies: 3,064
Views: 170,488
Posted By Nyal Mellor
It's not neat. I would say there are four...

It's not neat.


I would say there are four regions:
1) sparsely populated room mode region. Modes spaced maybe 10Hz+ apart. Main axial modes. Normally the biggest problems. <100Hz
2) room mode...
Forum: Dedicated Theater Design & Construction   05-19-2015, 02:43 PM
Replies: 3,064
Views: 170,488
Posted By Nyal Mellor
The question is what does a discontinuous baffle...

The question is what does a discontinuous baffle wall do to SBIR? The slots I design in are small compared to the wavelengths where SBIR might be predicted. What happens to the wave when it reaches...
Forum: Dedicated Theater Design & Construction   05-19-2015, 02:30 PM
Replies: 332
Views: 9,665
Posted By Nyal Mellor
I like to think of Atmos as channels + objects....

I like to think of Atmos as channels + objects. AFAIK DTS.X is fully object based. Obviously all the spatial audio systems have to be rendered into physical speakers at the end of the day. Honestly I...
Forum: Speakers   05-19-2015, 10:59 AM
Replies: 45
Views: 1,095
Posted By Nyal Mellor
If you want the AVS crowd then you need to have...

If you want the AVS crowd then you need to have Andrew design a slim sealed box speaker that can go in a baffle wall and reach 105dB peaks at 13ft. And it should only cost $1500 or less. For spatial...
Forum: Dedicated Theater Design & Construction   05-19-2015, 10:29 AM
Replies: 3,064
Views: 170,488
Posted By Nyal Mellor
Generally I've been designing my baffle walls to...

Generally I've been designing my baffle walls to be solid to 36" or 3' around tweeter center to manage the baffle step. There will still be a transition but it is now below 300Hz where the room modes...
Forum: Dedicated Theater Design & Construction   05-19-2015, 10:19 AM
Replies: 12
Views: 184
Posted By Nyal Mellor
As many vents as possible is the easiest design...

As many vents as possible is the easiest design with an open cavity filled with pink fluffy. You can also try and design the riser as a tuned Helmholtz bass trap to target a specific frequency range...
Forum: Dedicated Theater Design & Construction   05-19-2015, 10:17 AM
Replies: 332
Views: 9,665
Posted By Nyal Mellor
Looking good, aren't the rears a bit low?

Looking good, aren't the rears a bit low?
Forum: Ultra Hi-End HT Gear ($20,000+)   05-15-2015, 04:19 PM
Replies: 64
Views: 2,292
Posted By Nyal Mellor
Very few of the high end processors are designed...

Very few of the high end processors are designed as upgradeable platforms. The Krell isn't, the McIntosh isn't. Not sure about Meridian...maybe. Certainly Datasat RS20i, Theta Casablanca and Trinnov...
Forum: Speakers   05-15-2015, 04:14 PM
Replies: 7,399
Views: 934,173
Posted By Nyal Mellor
I think you are missing the point. The point with...

I think you are missing the point. The point with Stereophile is that they have many different types of writers, each with their own style and taste. I get much more from reading Stereophile than any...
Forum: Dedicated Theater Design & Construction   05-15-2015, 09:33 AM
Replies: 9
Views: 217
Posted By Nyal Mellor
I think the conversation is relevant here because...

I think the conversation is relevant here because this thread is about acoustics.


Where people get in trouble is blindly applying "rules of thumb" without any consideration of the specifics of...
Forum: Dedicated Theater Design & Construction   05-14-2015, 06:00 PM
Replies: 9
Views: 217
Posted By Nyal Mellor
I would not blanket recommend the approach of...

I would not blanket recommend the approach of killing all first reflections with thick absorbers. All your other "rules of thumb" are great recommendations, but not that one.
Forum: Dedicated Theater Design & Construction   05-14-2015, 12:20 PM
Replies: 1,357
Views: 90,769
Posted By Nyal Mellor
The ISCO is a great lens, assuming you also have...

The ISCO is a great lens, assuming you also have a sled to move the lens in and out of the light path and don't have a PJ with motorized zoom / focus / shift. All in all I prefer zoom memories over...
Forum: Dedicated Theater Design & Construction   05-14-2015, 10:14 AM
Replies: 5
Views: 215
Posted By Nyal Mellor
Ah, Theater II, a chance to learn from all the...

Ah, Theater II, a chance to learn from all the mistakes made in Theater I! At this stage I would recommend NOT focusing on equipment and instead working on the all important layout and design of the...
Forum: Dedicated Theater Design & Construction   05-14-2015, 10:10 AM
Replies: 9
Views: 217
Posted By Nyal Mellor
I'd recommend tackling the echo (excess...

I'd recommend tackling the echo (excess reverberation) first.


Basically add soft stuff (like the OC705) until you lose the bad echo. It's best to try and spread the absorption around the room...
Forum: Dedicated Theater Design & Construction   05-14-2015, 09:36 AM
Replies: 35
Views: 575
Posted By Nyal Mellor
The main challenge is vertical angle difference...

The main challenge is vertical angle difference between the display and the ceiling speakers. Once it gets over a certain amount (not much research on this but I have talked to people like Floyd...
Forum: Dedicated Theater Design & Construction   05-14-2015, 09:31 AM
Replies: 1,357
Views: 90,769
Posted By Nyal Mellor
Here's the Lumagen app note on lensless and zoom...

Here's the Lumagen app note on lensless and zoom less 2.35:1 projection. http://www.lumagen.com/docs/Tip0016_WidescreenWithoutAnamorphicLens_032712.pdf


Basically you zoom in the PJ until the top...
Forum: 2-Channel Audio   05-11-2015, 12:47 PM
Replies: 198
Views: 3,400
Posted By Nyal Mellor
Absolutely. This is an older blog article but...

Absolutely. This is an older blog article but fundamentally the things that can't be fixed by room correction still can't be fixed by room correction.

...
Forum: 2-Channel Audio   05-11-2015, 12:45 PM
Replies: 198
Views: 3,400
Posted By Nyal Mellor
Actually 6dB gain below the "baffle step...

Actually 6dB gain below the "baffle step frequency"...assuming a transition from full space to half space.
Forum: Speakers   05-11-2015, 10:59 AM
Replies: 34
Views: 938
Posted By Nyal Mellor
Many good choices, depends whether you want to...

Many good choices, depends whether you want to slant more towards HT or two channel. From the AVS crowd you'll get recommendations that are more HT focused, like the JTR and Seaton. Personally if you...
Showing results 1 to 25 of 1222

 
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