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From: Anon on 20 Jan 2010 10:24
I am a long-time lurker in s.e.r and have read much great advice, some of
which I have put into use. To be clear, I have no intention of attempting a
repair on this TV. I have weak (de)soldering skills. The only servicing I
do on TVs, is to reseat a daughterboard or stripping them for components
(and practice desoldering without destruction).

The problem I hear is on a number of channels including some major networks
local stations. The background sounds (and music) overpowers any voices.
To me it seems as though the quieter "background" sound is being fed through
the louder "foreground" channel, and viceversa. The problem however only
occurs on this TV and cannot be (entirely) the broadcasters fault.
Additionally, if I recieve and output the audio portion with a VHS VCR, it
sounds just fine. (Wife hates it because you need two remotes to mute or
adjust the volume). To clarify, the TV's audio and the VCR's audio both go
through the same surround sound system, not using the TV's speakers.
Outputting the TV's audio thru its own speakers is even worse.

I have even seen OpEd complaints towards the local broadcasters regarding
this same issue in our newspaper occasionally over the past few years. I
have asked Sears techs who have come for warranty service on the set, but
was assured there are no "rear" and "front" audio channels.

Tonal range of the background has little effect. High pitch (street)
background noise still overpowers voices, like the rumbling lows of a
musical score.

This problem is easy for us to bypass with the separate audio, so it really
is only my curiosity asking. With all the skilled service techs
contributing here, maybe someone has run into this before, that can offer an
explanation?

Scott
Dunedin, FL



From: William R. Walsh on 20 Jan 2010 12:03
Hi!

> The problem I hear is on a number of channels including some
> major networks local stations.  The background sounds (and
> music) overpowers any voices.

I believe you will find this is not a fault in the TV itself. You
should check the audio settings in the set to see if any of those
happen to be incorrect. I would recommend checking to make sure the
set hasn't been set to receive the secondary audio program (SAP) or
that any "effects" such as stereo expansion or the "smart sound"
effect are turned off.

If you are watching through a set top or converter box, have you
checked its audio settings to be sure they are correct? Perhaps the
box is outputting the wrong type of audio for the speaker system you
have.

This TV is probably capable of receiving stereo audio if it is being
broadcast. Some broadcasters--for whatever reason--have their stereo
audio messed up in the way you describe.

When you watch through the VCR, it's very possible that you are only
watching with monophonic audio, especially if the VCR is outputting to
the TV over its built in RF modulator. (Very few RF modulators output
stereo audio.) This may be enough to defeat any audio processing that
is being performed by your TV (most such schemes don't work on single-
channel audio) or problems with the stereo audio coming from the
station or source.

I've noticed that sometimes the effect of loud background noises and
quiet foreground noises can be caused by playing multi-speaker sound
(usually 5.1 channels) through a stereo speaker system.

William
From: news on 20 Jan 2010 16:04
On Wed, 20 Jan 2010 10:24:46 -0500, "Anon" <nospam(a)tbrr.net> wrote:

>I am a long-time lurker in s.e.r and have read much great advice, some of
>which I have put into use. To be clear, I have no intention of attempting a
>repair on this TV. I have weak (de)soldering skills. The only servicing I
>do on TVs, is to reseat a daughterboard or stripping them for components
>(and practice desoldering without destruction).
>
>The problem I hear is on a number of channels including some major networks
>local stations. The background sounds (and music) overpowers any voices.
>To me it seems as though the quieter "background" sound is being fed through
>the louder "foreground" channel, and viceversa. The problem however only
>occurs on this TV and cannot be (entirely) the broadcasters fault.
>Additionally, if I recieve and output the audio portion with a VHS VCR, it
>sounds just fine. (Wife hates it because you need two remotes to mute or
>adjust the volume). To clarify, the TV's audio and the VCR's audio both go
>through the same surround sound system, not using the TV's speakers.
>Outputting the TV's audio thru its own speakers is even worse.
>
>I have even seen OpEd complaints towards the local broadcasters regarding
>this same issue in our newspaper occasionally over the past few years. I
>have asked Sears techs who have come for warranty service on the set, but
>was assured there are no "rear" and "front" audio channels.
>
>Tonal range of the background has little effect. High pitch (street)
>background noise still overpowers voices, like the rumbling lows of a
>musical score.
>
>This problem is easy for us to bypass with the separate audio, so it really
>is only my curiosity asking. With all the skilled service techs
>contributing here, maybe someone has run into this before, that can offer an
>explanation?
>
>Scott
>Dunedin, FL
>
>
The sound on my Magnavox LCD TV is poor unless you run it through a
decent set of speakers :-( Feeding the audio out jacks of the TV to
even a small CD player with larger (maybe 6") speakers makes a huge
improvement in the lower frequencies. I think the problem is the
small, thin speakers they use to keep the TV frame thin - good
speakers have big magnets and the speakers are more than 1" thick.

Music louder than voice is something from popular music of the past
10-15 years - the "glitz" singers (where it was all about the show,
not the singing) knew their voices were lousy and raised the music
level to hide it. If people can't clearly hear them singing flat or
the wrong note, then they don't get "couldn't carry a tune in a
bucket" reviews. Once the fad started, lots of other groups joined
in. Now the fans of that music are scoring movies and TV shows - with
similar bad results. Less likely in movies with big stars, as they
have the clout to get things changed.

John
From: John-Del on 20 Jan 2010 19:19
\
>
> The problem I hear is on a number of channels including some major networks
> local stations.  The background sounds (and music) overpowers any voices.


Simple. It's the surround processing done at the broadcast that's
causing this. Two ways to fix:

1) Install a surround sound system making sure the center channel is
working.

2) Put the TV in mono mode.

To be honest, the physical separation of the speakers doesn't throw
much of a stereo soundstage anyway. When I repair or sell a TV that
isn't used
on a surround system, I always deliver it in "mono" All my TVs (not
on surround)
are in mono all the time. Trust me, you'll be much happier.

John
From: Phil Allison on 20 Jan 2010 20:10

"Anon"

> The background sounds (and music) overpowers any voices. To me it seems as
> though the quieter "background" sound is being fed through the louder
> "foreground" channel, and viceversa. The problem however only occurs on
> this TV

** The TV has some from of stereo enhancement in the audio system.

Go into the menus and disable it if possible.



..... Phil




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