Monday, November 25, 2013

Connecting and External Powered Speaker to TV with Optical Output Cable?

system speaker volume
 on ... Speaker Combo System w/ Volume Control Speaker Wall Plate & Wiring
system speaker volume image



Mark


I have a brand new Samsung 32" HDTV and it has an optical audio output that I would like to connect to a external speaker system. It is a tower speaker, self amplified sold at Brookstone (Big Blue Media Tower) and it has a optical input. I know it will work as that is how Brookstone advertises it for a TV, kind of like a sound bar. My question is that Samsung says I have to control the speaker volume with the speaker remote and others online say if I set my TV menu to external speaker, the external speaker volume can be controlled via the TV remote, please clarify if you know the answer before I buy this system, thank you for your help.


Answer
To control the speaker volume you have to use the speaker remote.

What does -10 mean for home system speakers?




Anna


When I watched an action movie, there was an explosion in the movie and the sounds from the speakers had big boom. It was really loud, and it shocked me. If I turned the speakers volume to -10, will that make the sound softer?


Answer
Then calibrating each individual speaker on a surround sound system, each speaker has an adjustable range from -10 to +10. The default setting for all of the speakers is at 0. This adjustment is used to fine tune the SPL (sound pressure level = volume) of each individual speaker in representation to the viewing location. Idealy, you would want all speakers to be the same distance from the viewing location, but since they is rarely possible, this adjustment is there to compensate.

As for the issue you are having. This has nothing to do with speaker calibration, but compression. When a theatrical movie is broadcast over our TVs, the sound is compressed. This means that the range between the loudest sounds and the most quiet sounds is reduced. The higher the compression, the more flat the volume response is. Networks do this in order to prevent people from blowing out their TV speakers.

As for DVDs and Bly-Rays, the compression is set very low, so that the viewer can get that theater feel. Low compression means that there will be a bigger difference between quiet sounds and the explosions. This is how the movie is intended to be watched. Pay attention the next time you're in a movie theater watching an action movie with explosions.

The loud explosions doesn't mean that your surround sound isn't set up correctly, but that it IS working properly. That's why it's called a home theater. It is supposed to mimic the sound of a real theater, and that means loud explosions.

If these loud explosions are a problem for you, then perhaps your surround sound receiver has compressions. Many of them do these days. Sometimes it is known as a "late night" feature. This will tone down the explosions and amplify the whispers allowing you to listen to your movies as a lower volume.

Adjusting each individual speaker volume isn't the answer. This will only give you unbalanced audio.




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Sunday, November 24, 2013

when playing a DVD i get a louder buzz when there is a lot of white or lighter color on the screen. Fix?

speaker system buzzing
 on If your car speaker are making a buzzing noise, when you play music ...
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Ol' Ray


the TV is a 30" Toshiba Hi-Def and a Pioneer DVD player. The hum or buzz gets loud if there is a lot of white in the picture, and also if there is a lot of light blue or other light colors. I have a Durabrand theater speaker system, but the noise is there even if we're not using those spakers.


Answer
Are you using the composite (yellow) video input on the TV? If so, the video is getting into the audio signals. I had a TV do that because one of the circuits was going bad. Try just unplugging the video connection at the TV. If the noise goes away, then it is the video causing the problem.

With HD, you should use >>component<< (red/green/blue) inputs with proper cables for the video and you'll still need the red/white audio connections as well. The picture will be much better and have much better isolation from the audio signals.

Better still would be the HDMI connection, but not all players have those, and some aren't compatible. Easiest thing to do would be to go with the component inputs on the TV.

Also, make sure the TV and player are plugged into the same wall outlet. Sometimes using different wall outlets can cause problems.

How do I connect my laptop to external self powered speakers?




Tschuler


I am trying to connect my laptop to some external logitech self powered speakers. I'm runing a standard minijack audio cord from my laptops headphone out to my external speaker systems audio input in and as soon as I plug it in I hear a loud buzzing noise comeing from all speakers.
Do I need to change a setting from digital to analog or buy a converter? or what?



Answer
the minijacks are either not proper connected, the cord is broken or the jacks have no clean contacts. i've noticed the same sometimes on my laptop speakers, but after deconnect and reconnect the jacks the buzzing noise disappeared.




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