TVs & Home Theaters forum


No sound in home theater system from TV, please help

by alsas88 / September 5, 2013 5:47 PM PDT

Good day all,

I have a sony Bravia LCD and Klipsch SB3 speakers.

The speakers has either RCA R/L connection or Optical Audio.

If i connect any source (say laptop or receiver box) to my tv via HDMI, and then connects the speaker R/L to the tv and choose output source from tv menu to external speakers, there's no sound at all.

I tried to connect the R/L cable directly to my receiver box and sound played perfectly from speakers.

but what about the laptop, I can't hook up the R/L cable to my laptop which is connected to my TV through HDMI. A play movies from my laptop on the TV how can I manage to get the sound playing from the speakers?

Please help

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Clarification Request
Is this the old question like this one?
by R. Proffitt Forum moderator / September 5, 2013 5:56 PM PDT

Why can't my PC send audio over HDMI?

Also, there are RULES about audio pass through that mean it should not work. For example if you video file is sending 5.1 and because HDMI mandates HDCP you might find it going mute on the video. This is well discussed so I'll stop here.

Does the TV speakers work with the laptop? If not them the laptop is most laptop not set to send audio over HDMI or there is a driver issue. Looking at the details I can't continue.

All Answers

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Bottom line is...
by Pepe7 / September 6, 2013 12:31 AM PDT

...the Klipsch soundbar system is very overpriced for its capabilities in this regard. [Retail=$699] For the same $, you could have obtained a traditional AV receiver & surround speakers/sub that would do everything you need it to do, w/o the hassles of HDMI audio restrictions. If you would like a recommendation for an alternative, feel free to ask.

We would have to learn more about your laptop specifics (all hardware/software/make/model numbers) to be able to assist with sending along audio directly to the soundbar. Using HDMI, you will not be able to pass through sound via the HDTV back to the speakers. Sometimes even the less restrictive Stereo 2.0 sound will not be passed back through, let alone surround.

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by alsas88 / September 6, 2013 5:29 AM PDT
In reply to: Bottom line is...

My laptop is a Sony Vaio that connects to the TV via HDMI output into the HDMI input of the TV.

I play movies and blu rays on my PS3, and can connect the PS3 to the sound bar via RCA R/L or optical. Same thing with my receiver box for watching TV channels I can hook up the sound bar directly to the box and the sound will come out with no issues.

But many times I also play content from my laptop on the TV and until now I couldn't manage to get the sound out of the sound bar.

the sound bar has either optical input, RCA R/L, 3.5 mm jack.

if connecting the laptop to the TV via HDMI and connecting the sound bar to the TV directly apparently that won't work. Then how could I hook up the sound bar to the laptop?

would connecting them through 3.5mm jack play the sound, in this case video is transferred to the tv through HDMI and audio through 3.5mm jack to the bar? do I need to change any setting on the laptop itself (running windows 7). Or should I get one of these cables 3.5mm to RCA and connect the first to the laptop and the later to the bar?

I really appreciate the help.

and as for the bar, bars may not usually perform as good as dedicated speakers. But for the space and the convenience sometimes they are a good option. comparing the Klispch to the more expensive Bose sound bars the Klipsch was a winner. The sound it great (and I owned other 5.1 systems before).

Thanks for the help again guys. appreciate it.

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Keep in mind that over HDMI, HDCP rules apply.
by R. Proffitt Forum moderator / September 6, 2013 5:45 AM PDT
In reply to: info

So from the laptop to the TV might be 5.1 but if the rules are followed it's stereo only passthrough.

The analog path should work. For example if the laptop speakers play and the headphone works, you're done.

As to audio from laptop over HDMI, it appears you are asking one of those questions with many discussions. Here they are.


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The whole soundbar thing
by Pepe7 / September 7, 2013 11:25 AM PDT
In reply to: info

It was basically invented by the companies to accommodate folks with space constraints, and those who didn't want to mess w/ dealing with traditional surround sound speaker installs (hiding wires, etc.). Understandable for those folks shoehorned into tiny spaces. My problem though begins when someone asserts it's a valid substitute for real 5.1 surround systems, which is simply never true. While matrixed stereo sound of soundbar systems can sound warm/bright/loud, it does not provide true (=good) surround.

FWIW, anyone willing to pay what Bose asks for their sound bar must have a lot of money to burn, or not care about what else is available in the marketplace that can provide superior sound.

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