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Eng. Andres
Eng. Andres, Engineer
Category: Electronics
Satisfied Customers: 68
Experience:  Electronic Eng. Electronics Specialist. Circuit designer
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How can I cure interference on my 450 sound bar. When people

Customer Question

How can I cure interference on my 450 sound bar. When people are speaking or there's some form of action going on - no problem, but all is quiet it's like the tide in the sea or the noise of a car passing by.
Submitted: 4 years ago.
Category: Electronics
Expert:  TV-Tech1 replied 4 years ago.
Hello, I'm TV Tech1 and I'll be working with you to identify and help you resolve your problem.

I usually hear that sound hiss you speak of when "Auto volume leveler" settings in either the TV set....or the Soundbar is turned on. We need to find and turn off any Auto Volume or Sound level setting on the TV set, the soundbar, and if your TV is connected to the soundbar using stereo RCA cables instead of HDMI or optical cables, we should consider switching to the latter if it's available for us to use.

Look in your TV's AUDIO menu settings for any Auto volume/auto leveler settings...if you turn them off the sound will be delivered to your soundbar the same exact way the TV show/Movie/DVD intended it to be. With it on, it tracks softer and louder passages and creates hiss because of the softer audio levels. That's why we want to turn them off.

Your soundbar has its own menu settings too...make sure any auto level setting is turned off on it.

I can't tell if your TV or Soundbar has this, because I am not aware of your TV or Soundbar's Brand name, or model. But I can tell you what I find that causes that problem with Audio.

Check it out, and if you can't find those settings, get the Brand and model of BOTH. Then tell me if your audio connection between the TV and soundbar is the RCA , Optical or HDMI cable.
Customer: replied 4 years ago.
Thank you, found the auto volume on the TV & turned it off, also muted the sound also.
This has improved the quality, however the problem hasn't entirely disappeared .
Both set & sound bar are Samsung products, the bar is connected via optical cable from the TV directly into the soundbar.
I can't find any settings controls on the soundbar, any controls are identical to those on the remote.
Expert:  TV-Tech1 replied 4 years ago.
Glad to hear of the improvements, and that you are using optical outputs and both are from the same brand family. Now it gets tough because those setting should have quieted it down completely, and it hasn't.

So...let's see where the problem actually originates.
Disconnect the optical cable and see if the noise you still have comes from the soundbar or not.

Thanks for the brand but I did need the model of both too.