Author Topic: Before you post, this thread might help answer some of your questions in HT  (Read 102837 times)

Offline petetherock

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Welcome all who venture forth into Home Theatre (HT) and wish to enjoy the cinematic experience in the comforts of their homes.

As a new member, also read the stickies in each section, there is a wealth of info in them, if you still have queries, then post them.

Cheers

Many of us will not read past the first page on our point of entry, which is usually the HT section, and many will not bother to use the SEARCH function or the FAQ section, hence the reason for compiling this thread.



Re-creating the HT cinematic feel in your own homes is definitely possible, but there is a definite thought process.

- Get your budget sorted (remember pay peanuts, get monkeys)

- balance of music and HT - you cannot get good music with a cheap AV (audio-visual) amp

- there are VFM (value for money) items which come about, but don't expect a $500 amp to kill a $8000 piece of equipment

I hope to share some ideas and tips and I also invite the others who are real pros here to help make HT a wonderful experience for our brothers out there.

I make no attempt to hide my bias towards some brands, and I have my own beliefs and thoughts, but please feel free to disagree.

At the end of the day, if a $100 NTUC dvd player hooked up to a $200 21" CRT is your setup, simply enjoy it and have no worries...

OR you can take the first step towards a rewarding, possibly expensive hobby and make many friends at the same time.

And if after a few posts and ideas gathering sessions, you feel like an audition, I do welcome opinions and critisisms of my setup at regular demo sessions, as will many of the generous brothers here like Jag, J Yeo, etc

A gentle tip to newbies asking for advice on components to buy:



- Give Us a Budget! Who can tell what you want to spend



- music preferences - just for games (some simple boom box from Logitech or Creative might suffice) / a full Home theatre system / Stereo listening pleasure / headphones



Plus the ratio of the above



- what is the room size??



- basically the more info offered, the more replies!
« Last Edit: February 02, 2009, 00:07 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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Remember the SEARCH Button is your friend and will cover many topics which others may have asked before.
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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« Last Edit: November 06, 2007, 08:01 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html


Offline petetherock

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« Last Edit: June 22, 2008, 16:01 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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« Last Edit: July 26, 2008, 08:43 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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Displays
« Reply #6 on: October 06, 2007, 14:11 »
In case you nelgected to see
there is a section on displays which you should read before posting display related stuff.

There are good threads on Pioneers:


http://www.xtremeplace.com/yabbse/index.php?topic=43121.0

http://www.xtremeplace.com/yabbse/index.php?topic=45450.0

http://www.xtremeplace.com/yabbse/index.php?topic=45656.0

MIO:

http://www.xtremeplace.com/yabbse/index.php?topic=46365.330


Panasonics:

http://www.xtremeplace.com/yabbse/index.php?topic=45611.0

Hitachi:
http://www.xtremeplace.com/yabbse/index.php?topic=42096.0

Samsung Full HD LCD:

http://www.xtremeplace.com/yabbse/index.php?topic=46264.0

Full HD plasma:

http://www.xtremeplace.com/yabbse/index.php?topic=49656.0

There are more plasma TV, Projector (PJ) owners here and for opinions on smaller and budget panels, PC related stuff, LCDs etc there are other possibilities

http://forums.hardwarezone.com/forumdisplay.php?s=&daysprune=30&f=226
« Last Edit: May 13, 2008, 06:39 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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« Last Edit: September 17, 2014, 16:40 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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« Last Edit: July 05, 2015, 18:31 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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Cables
« Reply #9 on: October 06, 2007, 14:21 »
Many threads, too many to list all again

http://www.xtremeplace.com/yabbse/index.php?topic=41911.0

But type in " LHS " and you will get lots of info

http://www.xtremeplace.com/yabbse/index.php?topic=31283.0

Many budget cables on sale there

Belden:

http://www.xtremeplace.com/yabbse/index.php?topic=44245.0;topicseen



"Adelphi" search will also yield heaps of info.

BTW Hean Lee Radio sells cables, plugs, transformers etc (google for their contact)

** I don't work for them **

Put aside about 10%, too much and IMO it becomes snake oil....
« Last Edit: October 06, 2007, 15:53 by petetherock »
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Offline petetherock

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Room treatment
« Reply #10 on: October 06, 2007, 14:24 »
The experts here will tell you more and I am hoping bro J Yeo, Jag and Joamonte (why do Js know so much about this I wonder...)

But a SEARCH (yes search) will get you a lot

Type "room and treatment" or  "rockwool" " acoustics" etc

for example:

http://www.xtremeplace.com/yabbse/index.php?topic=48212.0
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Offline petetherock

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« Last Edit: March 11, 2008, 23:17 by petetherock »
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html

Offline petetherock

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SPL meter
« Reply #12 on: October 08, 2007, 04:08 »
Despite the advent of the auto-setup, IMO, this is an indispensible tool for proper setup and level setting.


Some useful links on this:

http://www.xtremeplace.com/yabbse/index.php?topic=47129.0

And of course if you didn't make it to the FAQ section:

http://www.xtremeplace.com/yabbse/index.php?topic=11452.15

I like this one:
http://www.dtvforum.info/index.php?showtopic=31720

"Excerpt from "UNDERSTANDING SURROUND SOUND - 5.1 And Beyond..." writen by Mark Techer, July 2000
SYSTEM CALIBRATION.

AUDIO ADJUSTMENTS.

A well designed controller will have a few standard items. Apart from different surround sound decoding algorithms, your audio processor should have level trims for all channels including the FRONT LEFT and FRONT RIGHT.

For those systems that do not, you will need to find the level where the Left channel that reads +75dB and remember or mark the master volume at that point. That number will your 00dB level, even though it may not be close to 00dB.

Also, not all volumes display in relative (negative dB figures), some display in “absolute” (number that increase with the loudness). If your system is such, then choose a “round” number and then adjust each channel trim to read +75dB on the meter.

The worst case scenario will be a unit that does not offer either trims on the front left and right channels or a master volume displayed in absolute values…

In this digital age, usually both the trims and the master volume control will be digital and the trims should be in half dB adjustments. Full dB adjustments are too course and may not allow total precision.

All well designed decoders will also have an internal noise generator. The tone emitted from the noise generator will be equivalent to an audio tone recorded at –30dBFS for film sound (18BIT) which is the same as 105dB – 30dB or +75dB. Using a Sound Pressure Level meter and these tones, you will be able to precisely adjust the acoustic output level of your system to equal that of a cinema or dubbing stage.

The end result will be that you will hear the sound track they way it was heard in the studio that created it both from channel to channel sound as well as absolute volume level.

The SPL meter should have an analog display. The use of the analog model is preferred as reading can be under 1dB and depending on the type of level trim on your system, totally accurate.

The radio shack SPL meter is the same type used by the film industry. Independent tests revealed that this meter was the most accurate model from a group of meters tested including more expensive models.

The new meter from JAYCAR is more expensive, but it has a calibrate feature. Whilst this meter is digital, it does display in 1/10th of a dB.

USING THE METER.

The meter has a rotating “range” dial and two switches. The range dial provides the SPL range you would like to measure in decibels starting form 60dB to 120dB. There is also a battery check “BATT” position just next to the “OFF” position.

The two switches are labeled “WEIGHTING” and “RESPONSE”. Set the “WEIGHTING” switch to the “C” position and the “RESPONSE” switch to the “SLOW” position.

Set the dial to the 70dB range. This will now allow you to read SPL from 60dB to 76dB.

EDIT: Position the meter in the prime listening position.

Hold the meter at arms length from the body. The meter should be at seated ear height, pointed up and slightly forward.

DO NOT POINT THE METER AT ANY ONE SPEAKER.

I use a tripod to hold the meter and move well away so that reflections from my body are not read by the meter and give false readings.

Activate the test tone generator on your surround sound processor. Well designed processors will default to a 0dB reference level position regardless of the actual volume position and start at the LEFT front channel.

Observe the level reading. It should be reading at +75dB/C/SLOW. If the audio level is too high, the meter’s needle will “peg” and you will have to reduce the trim level for that channel to read the desired +75dB/C/SLOW. If the audio level is too low, adjust the trim to read the correct level.

PEGGING OF THE NEEDLE IS NOT ADVISED AND MAY ACTUALLY DAMAGE THE METER.

Once you are satisfied with the level, proceed to the next channel, working in turn around the room.

SUBWOOFER AND LFE LEVEL.

While the standard level for all main channels (including the Surrounds) is +75dB/C/SLOW, setting the level for both the subwoofer and the LFE channel is a little more complex.

Ideally you would use a Real Time Spectrum Analyzer. The level of the Subwoofer can be set with the SPL meter by the following method. The level of the Subwoofer should also read +75dB on the meter, however the tone for the Subwoofer is a “Warble” and the level will very along with the frequency. It will be difficult to set the level at the 70dB range.

Turn the dial to the 80dB range. If your processor has a Sub test warble, adjust the trim to read an average of +79dB/C/SLOW with the lowest part reading at –5dB on the 80dB scale. The level difference will be around just 4dB and is equivalent to the average level of +10dB when using the RTA.

DO NOT SET THE SUBWOOFER TO READ 10 DECIBELS HIGHER THAN A MAIN CHANNEL WITH THE SPL METER.

The LFE channel is a fixed value in reference to the subwoofer level. That is if you increase the Subwoofer level, you will also increase the level of the LFE channel. Some decoders offer a separate trim for the LFE channel. It should be set to the same level as the Subwoofer. If the SUB trim is 0dB, then so is the LFE trim.

THE LFE TRIM WILL NOT GO ABOVE 0 REF DECIBELS. IF THE LEVEL IS NOT HIGH ENOUGH AT THE 0 REF DECIBEL LEVEL, INCREASE THE GAIN ON THE SUBWOOFER WHERE POSSIBLE.

PLAYBACK.

Once your system has been calibrated, you can enjoy a film. The 0dB reference level is the level you should watch films at. You may of course reduce this level if it is too loud.

DIALNORM may be seen on some format decoders. It is a part if the Dolby Digital coding and will advise you of the average level of dialogue in a program. If the DIALNORM reads a plus figure EG “DIALNORM +4”, you must reduce the level of the master volume by 4dB. When used correctly, you will find that the level of dialogue remains consistent across a wide range of program material. The peak levels however will vary occasionally resulting in some very high Sound Pressure Levels. "
« Last Edit: October 08, 2007, 04:10 by petetherock »
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Offline queks

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I make it a sticky thread. Let see whether is it useful to the newbies.  :D
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Offline petetherock

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TV myths, warranty, and 1080p demystified.
« Reply #14 on: October 10, 2007, 11:06 »

TV warranty Issues:

http://www.xtremeplace.com/yabbse/index.php?topic=48459.0

Simple truth, examine the fine print and caveat emptor.

1080p myth busters:

http://forums.hardwarezone.com/showthread.php?t=1647542
Please post instead of sending a pm, so more can learn.

My gear:
https://peteswrite.blogspot.sg/2018/03/my-setup-32018.html