Re: Want to build a dedicated home theater, suggestions please. Quote:
Originally Posted by dre@ms From where did you source this? I am looking for Dolby demo discs to check my Yamaha 5.1. And, where do you play these discs? The Amplifier or Blue ray player connected to Amplifier?
I tried downloading some over Dolby site and the format was not playable by my Amplifier through USB Later, tried connecting it to my TV, but hardly differentiated the effects. |
I live in South Africa and those are available here .... actually the Transformers is freely available and the Atmos demo is is actually available to Hi-fi dealers but my friend with the Marantz AVR managed to get some to demo his system and i got one from him
i know a few people who tried to download them but if its not the full 5+ gb version then it wont play the proper Atmos effects - and basically you have to set your source to bitstream to play these so that they play the dolby TrueHD soundtrack if you do not have an Atmos capable AVR Quote:
Originally Posted by navin What is 7.1.4 anyway? I thought 7 was the number of fullrange/surround channels and .x was the number of subwoofers so if one had 2 fronts, 4 rears, a center and 4 subwoofers it would be 7.4 |
Navin ..... the Atmos naming convention works as described below (actually all object oriented formats work like this .... which includes DTS:X, which is the newest upcoming DTS version )
first you have the number of normal ear level surround speakers you use then the second number is the number of subwoofers then the third number is the number of ceiling speakers
so the number of speakers is now going to look like 7.1.4 OR 5.1.2 OR 7.1.2 ..... so to have the full 7.1.4 or 7.2.4 you need the front mains plus center channel and then rears as well as rear surrounds and then the ceiling speakers have a number of possibilities as shown in this diagram (my friend is using top front and top rear ceiling speakers)
in the diagram above ..... the last letters R and L are obviously left and right
FH = Front Height - used more for Dolby pro-logix IIz but can be used for Atmos and DTS:X
TF = Top front
TM = Top middle
TR = Top rear
RH = Rear Height
In the Marantz AVR there is also Auro 3D which has 5 ear level speakers - then theres a height level of 5 speakers - just above each surround speaker and this would be around a metre higher than each speaker while theses a single ceiling speaker which is referred to as a "Voice of God" speaker (as objectionable as this may be to some this is actually what it is being called for Auro 3D)
potential positions of Auro 3d are as follows
monopoles are favoured by stereo buffs but for movie fanatics who are into great sound the multi-pole designs actually can diffuse the sound if you know how to place them properly and as you rightly suggest use them in the requisite size of room
while i am missing the ceiling speakers for the moment, my speakers create a realistically diffuse surround effect and even projects a psuedo height layer because you will have top to bottom imaging between speakers now, so the lower layers project some height upward while the ceiling speakers are going to project the height downward which is what will give you the full height effects
again my placement has had months of experimentation and speakers being placed in different locations till i achieved the effects that work best in my own room .... if you were closer to my country i would have invited you over for a demo ..... nevertheless the offer still stands and if you ever find yourself in Durban, South Africa then let me know and you can pop in for a visit ![Thumbs Up](https://www.team-bhp.com/forum/images/smilies/thumbs up.png)
Last edited by naughty001 : 16th June 2015 at 11:05.
Reason: correcting spelling errors
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