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Search: Keyword(s): ; Posts Made By: m. zillch
Forum: Audio Theory, Setup, and Chat   02-26-2017, 01:36 PM
Replies: 16
Views: 122
Posted By m. zillch
No. Sorry, there isn't.

No. Sorry, there isn't.
Forum: Audio Theory, Setup, and Chat   02-26-2017, 10:50 AM
Replies: 21
Views: 229
Posted By m. zillch
There was a study done back in the 70s/80s (IIRC)...

There was a study done back in the 70s/80s (IIRC) which found that people will consistently report, to paraphrase: "Better stereophonic sound with more precise center imaging" if an object is placed...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   02-26-2017, 10:37 AM
Replies: 5,459
Views: 409,558
Posted By m. zillch
1. Some say arc wander can be alleviated by...

1. Some say arc wander can be alleviated by running the pj lamp at a different level for a period of time to reestablish a specific arc. For instance if you usually use ECO mode try using full blast...
Forum: Digital Projectors - Under $3,000 USD MSRP   02-25-2017, 11:19 AM
Replies: 4,862
Views: 656,579
Posted By m. zillch
Some clever programmers figured out a discrete ON...

Some clever programmers figured out a discrete ON command for Panny pjs but the only way to do OFF is as a macro sequence of two different flash pulses with a separation of a half second or so and...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   02-25-2017, 11:07 AM
Replies: 5,459
Views: 409,558
Posted By m. zillch
The three most common reasons for pj lamp...

The three most common reasons for pj lamp flickering are:

1. Arc Wander
2. A poorly seated or oxidized connection to the bulb (lamp)
3. Temperature cycling of the metal contacts [as metal heats...
Forum: Audio Theory, Setup, and Chat   02-22-2017, 12:50 PM
Replies: 137
Views: 2,118
Posted By m. zillch
No commercial cinemas that I am aware of...

No commercial cinemas that I am aware of reproduce the ceiling speakers' sound via aiming speakers up at the ceiling from below with an expectation that the bounce down to the audience, the...
Forum: Audio Theory, Setup, and Chat   02-22-2017, 11:43 AM
Replies: 4
Views: 100
Posted By m. zillch
Roughly speaking, and keeping all other things...

Roughly speaking, and keeping all other things equal, which they usually aren't when examining real world examples, and assuming you have whatever amplifiers are necessary to achieve your goals, what...
Forum: Audio Theory, Setup, and Chat   02-21-2017, 06:23 PM
Replies: 11
Views: 155
Posted By m. zillch
Corrosion is inevitable. In some humid and salty...

Corrosion is inevitable. In some humid and salty environments it is faster but there is no magic solution. Sometimes coating metal w/ protective films of compounds similar to WD-40, light machine...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   02-21-2017, 04:29 PM
Replies: 5,459
Views: 409,558
Posted By m. zillch
HDMI can have all sorts of problems but "snow" is...

HDMI can have all sorts of problems but "snow" is almost always "weak signal". What can cause a weak signal? Lots of stuff. The next question is always :"But this doesn't make sense because at times...
Forum: Audio Theory, Setup, and Chat   02-21-2017, 03:16 PM
Replies: 17
Views: 228
Posted By m. zillch
OK, good point, if they used a special "diffuse...

OK, good point, if they used a special "diffuse field reverberant chamber" then exact location might not matter however for any of us doing home testing a one foot spacing between competing units is...
Forum: 2-Channel Audio   02-21-2017, 10:46 AM
Replies: 24
Views: 324
Posted By m. zillch
There are a few differences. One is that unlike...

There are a few differences. One is that unlike an Aux IN the Main IN goes straight to the unit's internal power amp which then applies a fixed level of boost that can't be varied.

Another issue...
Forum: Audio Theory, Setup, and Chat   02-21-2017, 10:24 AM
Replies: 17
Views: 228
Posted By m. zillch
Also I thought to point out I have a small...

Also I thought to point out I have a small quibble with that paper's (http://www.collinsaudio.com/Prosound_Workshop/Smartphone_SPL_Meter_Test.pdf) methodology. When you are trying to take very...
Forum: Audio Theory, Setup, and Chat   02-21-2017, 10:12 AM
Replies: 17
Views: 228
Posted By m. zillch
That's not the exact paper I was referring to but...

That's not the exact paper I was referring to but it is even better, so thanks.

Everyone should keep in mind their findings which concluded:

"This study showed that certain sound measurement...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 06:53 PM
Replies: 2
Views: 62
Posted By m. zillch
^I agree. Almost any outboard system is better...

^I agree. Almost any outboard system is better than TV speakers even if just stereo. Hopefully the sub will work too and you need to flank the TV set with the two speakers, one on each side of it and...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 06:14 PM
Replies: 17
Views: 228
Posted By m. zillch
There was a comparative review by some legit...

There was a comparative review by some legit people who evaluated some smartphone aps with SPL meter functionality a few years back. True the built-in mic is lacking but you can buy a calibrated mic...
Forum: Speakers   02-20-2017, 06:08 PM
Replies: 2,215
Views: 87,191
Posted By m. zillch
Of course with a regular HT room correction...

Of course with a regular HT room correction system you aren't forced to take all, let's say 8 total different chair readings. You could for example:

A) stop at just 2 [the first one does distance...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 03:49 PM
Replies: 24
Views: 781
Posted By m. zillch
I guess ending this sentence with "in my 46-year...

I guess ending this sentence with "in my 46-year career", as it appeared in the original document by Bruce Hofer, would not have made sense to those of us who took note of when Jady Jenkins says he...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 02:01 PM
Replies: 24
Views: 781
Posted By m. zillch
Jady Jenkins next post has even more stolen text,...

Jady Jenkins next post has even more stolen text, again almost exactly word for word, from the same document:



Stolen from here:...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 02:00 PM
Replies: 24
Views: 781
Posted By m. zillch
With just a few minor alterations, the above text...

With just a few minor alterations, the above text was stolen, word for word, right down to the exclamation point on the last sentence from part of a private email blast called "Notes From The Test...
Forum: Audio Theory, Setup, and Chat   02-20-2017, 11:02 AM
Replies: 25
Views: 405
Posted By m. zillch
In Auto mode the crossover frequency is selected...

In Auto mode the crossover frequency is selected by the results of the mic's room calibration readings. In manual mode the user can set the frequency from 40 to 200Hz. see pg EN-31
---

Their...
Forum: 2-Channel Audio   02-20-2017, 10:36 AM
Replies: 24
Views: 324
Posted By m. zillch
There are many ways to connect a sub and take...

There are many ways to connect a sub and take advantage of bass mgt., however this is the only correct way.
Forum: Audio Theory, Setup, and Chat   02-20-2017, 09:59 AM
Replies: 19
Views: 3,342
Posted By m. zillch
When theses style of mics degrade over time it is...

When theses style of mics degrade over time it is usually pretty subtle, say by a dB or two. When there is a huge impact on the sound it is often because the capsule's diaphragm [the thin, vibrating...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   02-19-2017, 04:35 PM
Replies: 5,459
Views: 409,558
Posted By m. zillch
The home screen output and the movies themselves...

The home screen output and the movies themselves may be at different frame rates, for example. Also whenever there is any sort of video out change, and this includes HDMI EDID info exchange, HDCP...
Forum: Audio Theory, Setup, and Chat   02-19-2017, 10:47 AM
Replies: 25
Views: 405
Posted By m. zillch
"Patients who have a collapsed tolerance to sound...

"Patients who have a collapsed tolerance to sound need to have their Loudness Discomfort Levels (LDL's) established by a hearing healthcare professional." -
...
Forum: Audio Theory, Setup, and Chat   02-18-2017, 12:04 PM
Replies: 11
Views: 186
Posted By m. zillch
The makers of Audyssey...

The makers of Audyssey (https://audyssey.zendesk.com/hc/en-us/articles/212347563-Subwoofer-setup-and-MultEQ) are quite clear on what should be done:

"If you have a subwoofer with room EQ, then you...
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