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In Reply to: RE: Stereo & surround… posted by David Aiken on May 29, 2008 at 18:02:47
...I may not!
As for, "You get the best results when you reproduce the soundtrack with exactly the same number of channels as the soundtrack possesses" -- all too often those other channels are faked. Feh!
One thing I must do is learn how best to collapes the whole shmear into simple stereo. Regrettably (?) I do not yet have any decoding gear in house, so that must wait. I hate that "they" may have deprived us of the simple solution.
clark
Follow Ups:
"all too often those other channels are faked."
No more so than a stereo mix from a multi-channel recording is also faked.
My point was simply that taking a given soundtrack and altering the number of channels, whether it be a 2 channel soundtrack you're converting to more channels or a 5.1 channel soundtrack you're converting to stereo, can't be done without some damage. I found that the clarity of sound from the front L & R speakers in my HT system improved when I added side surround speakers and took the surround content out of what they were playing, and I found it improved again when I added a centre speaker and took the centre information out of what they were playing. Doing the reverse and folding channels into a smaller number of channels reduces clarity for me.
"One thing I must do is learn how best to collapes the whole shmear into simple stereo. Regrettably (?) I do not yet have any decoding gear in house, so that must wait."
Actually you do have some decoding gear which will collapse a surround sound mix to 2 channels: your DVD/BD player. They all have options for 2 channel or multi-channel output. Simply choose the 2 channel option and avoid selecting any option that adds pseudo-surround effects. Whatever you do, don't try the "simple" approach of just connecting the L & R output jacks of the surround sound outputs to your stereo amp because you're likely to find that all that does is give you 2 channels of the surround mix without any folding down to 2 channels and the first thing you'll notice as missing in action will be most of the dialog. Some players may work with this sort of connection PROVIDED you choose the stereo output option in their setup menu. Best advice: Read the manual for instructions on stereo output options.
David Aiken
...to a stereo amp?
I've just been doing as suggested, using the player's own stereo out. No problem yet with intelligibility!
I was only worried by what I read, about BDs having no real two-channel mix.
cj
and some others are sure to do so in the future. If an error can be made, there's always someone around to make it.
There are a couple of BDs of older films, "The Searchers" for one, with mono sound tracks. I was looking at the BD selection available locally yesterday and if I remember correctly "The Road Warrior" starring Mel Gibson actually has a stereo sound track so there's a stereo BD for you. The film may not be to your taste and I have to admit that I passed it by myself. Stereo soundtracks on BD are not impossible but I think you'll only see them on older films and at present there are relatively few films available on BD which did not have surround soundtracks when they originally released and I think there is little motivation to go back and create stereo soundtracks for hi def releases. I suspect there's a lot more chance of seeing the original soundtrack format preserved so I'd keep my eye out for re-releases of older films if you want native stereo on BD discs.
Selecting the stereo sound track option on DVDs is definitely the way to go when a stereo option is provided but a lot of people have a tendency to just tell the player to play the disc and accept the default soundtrack without investigating what's available, and the default is more and more often surround. It will definitely be surround with BD.
David Aiken
d
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