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Samsung TV digital audio out


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Old 12-08-2008, 18:15
KJ44
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I've got a Samsung LE22S86BD as a bedroom TV, and to get a bit of "oomph" I have the headphone output driving some PC speakers with a subwoofer.

There's a digital audio output on the TV I'd like to use instead.

I've RTFM'd, but it's not clear to me if the digital audio output will work

(a) with whatever source I want to listen to, or
(b) only for sources that supply digital audio themselves.

Even if you don't have the same model, your experience might give me a clue. I don't want to buy a posh AV amp that won't work.

Thanks.
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Old 12-08-2008, 20:40
clockworks999
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With an AV amp, you normally connect all your sources directly to the amp, rather than to the TV and then to the amp.
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Old 13-08-2008, 10:51
Willie Wontie
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Given that a Sky+ or Sky HD box will output a standard PCM stereo signal through its digital optical output when tuned to a channel that is not broadcasting with a digital soundtrack, and given that a DVD player will output a standard PCM stereo signal if you are watching a DVD only recorded with a Dolby stereo soundtrack, or watching a DivX file, or listening to a CD, there is no reason to think that your television will not output a standard stereo signal via the optical output when that is all it is receiving.

In fact, given that Freeview doesn't broadcast in DD, and your TV almost certainly doesn't have a DD/DTS encoder built into it, I would imagine that pretty much 100% of the output it gives will be in plain old stereo only. But it should still work...
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Old 13-08-2008, 12:55
RobAnt
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It seems people are still confused about two channels of audio.

Two channels of analogue audio will not just produce stereo, it can also carry dolby pro logic, dolby surround and other similarly encoded analogue surround sound signals.

So "plain old stereo" is not all you will get if you send the audio signal to an AV amp. So long as the amp has a decoder for surround sound, you'll get it., as it cannot be filtered from the the encoding within the two channels.

Obviously you will only get DTS or Dolby Digital surround if it is produced by the source and the TV can forward that signal to your AV amp unmolested. Something you'll have to experiment with, I'm afraid, given the lack of information.

But you could ask the manufacturers.
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Old 13-08-2008, 13:04
Willie Wontie
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So "plain old stereo" is not all you will get if you send the audio signal to an AV amp.
Plain old stereo was used to describe analogue stereo as opposed to Dolby Digital or DTS. Whether it contains encoded pseudo-surround signals to give DS/DPL/DPLII info or not is not the issue here. What I was trying to convey to the OP was that the optical output should be capable of delivering exactly the same signal as twin RCA stereo connectors - which would also be capable of delivering a Dolby ProLogic signal to an amp which could decipher that signal. The OP asked whether the optical output would carry a signal if the transmission did not include a digital audio soundtrack - I told him yes. End of story.
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Old 13-08-2008, 13:33
RobAnt
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Plain old stereo was used to describe analogue stereo as opposed to Dolby Digital or DTS. Whether it contains encoded pseudo-surround signals to give DS/DPL/DPLII info or not is not the issue here. What I was trying to convey to the OP was that the optical output should be capable of delivering exactly the same signal as twin RCA stereo connectors - which would also be capable of delivering a Dolby ProLogic signal to an amp which could decipher that signal. The OP asked whether the optical output would carry a signal if the transmission did not include a digital audio soundtrack - I told him yes. End of story.
But it IS the issue. To simplly state that "plain old stereo" is all he can get is just wrong.

He will receive two channels of audio. This is not necessarily stereo, and it hasn't been for a very very long time.

You continue to perpetuate this falsehood by stating "Plain old stereo was used to describe analogue stereo". He will receive two channels of audio. Not just stereo.
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Old 13-08-2008, 14:11
Willie Wontie
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But it IS the issue. To simplly state that "plain old stereo" is all he can get is just wrong.

He will receive two channels of audio. This is not necessarily stereo, and it hasn't been for a very very long time.

You continue to perpetuate this falsehood by stating "Plain old stereo was used to describe analogue stereo". He will receive two channels of audio. Not just stereo.
Rob - I know you have been blowing the trumpet for Dolby Pro-Logic for years, but please understand, the point is that the OP wanted to know whether he would only get audio from his TV being connected to his amp via optical if the original audio was Dolby Digital. He didn't give a monkey's whether the analogue audio that was being passed to the amp would then be played in psuedo-surround or not, he wanted to know whether he would still be able to hear it.

The answer to that question is Yes, he will still get audio from his television to his amp via optical if the audio is in (non-digital) stereo.

That is, the signal may be in plain old two channel stereo, it may be in Dolby Surround, it may be in Dolby Pro-Logic, it may be in Dolby Pro-Logic II. Whatever analogue stereo signals his amp can process, it should handle it. If you want to start a further thread condemning anybody who says that Dolby Pro-Logic is not true surround sound in the same way that DD5.1 and DTS and TrueHD is fair enough, start one. But don't try to confuse the OP by contradicting somebody who has told the OP what he wants to know.

OP - Will my amp still play non digital audio output by my TV if I connect the two together using an optical cable?
Answer - Yes. Even if Rob then comes on and tries to muddy the waters by talking about Dolby Pro-Logic - again!
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Old 13-08-2008, 14:57
RobAnt
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It isn't muddying the waters. Stereo has a very specific definition. The more you say "stereo" the more confused you appear to be.

You mean "two channels of audio" not "stereo" or to use it's correct form "stereophonic". The two have separate and distinct meanings.

I take on board your argument about what you feel the OP wants, and I agree with that. But it is important that you don't confuse the terms stereo and two channels of audio. They are not the same.

You even seem to think that I'm "blowing the trumpet for Dolby Pro-Logic". That simply isn't true DPL is not the only surround sound system that can be delivered within two channels of audio, it is simply the most popular. Quadraphonic is one such system.
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Old 13-08-2008, 15:29
Willie Wontie
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But it is important that you don't confuse the terms stereo and two channels of audio.
To who is it important?

To the OP? No, he doesn't give a shit.

To me? No - I avoid all forms of analogue audio if at all possible. I know full well that Dolby Pro Logic (and its offshoots) are accessible through optical, through coaxial and through RCA. I am fully aware that surround sound can be encoded within an ordinary stereo soundtrack using basic matrix technology and phase shifting techniques. And I couldn't care less.

To you? Yes, it seems to be the most important thing in the world to you. Good. You've made your point on another thread which neither asked for nor needed your input. Move on...
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Old 13-08-2008, 16:05
RobAnt
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To who is it important?

To the OP? No, he doesn't give a shit.

To me? No - I avoid all forms of analogue audio if at all possible. I know full well that Dolby Pro Logic (and its offshoots) are accessible through optical, through coaxial and through RCA. I am fully aware that surround sound can be encoded within an ordinary stereo soundtrack using basic matrix technology and phase shifting techniques. And I couldn't care less.

To you? Yes, it seems to be the most important thing in the world to you. Good. You've made your point on another thread which neither asked for nor needed your input. Move on...
It is much better to speak for yourself, rather than assume or even presume you speak for others whether or not they hold your view.
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