hifi engine

Volume level balancing

frankieboy's picture

I have a perfectly functioning Sony STR-DA555ES receiver. I also have a Sony KDL-48W600B TV set. The audio output of the TV (Optical digital) is plugged into the TV/SAT optical digital input jack of the receiver.

The issue is that the volume level of the TV output is much lower than the internal radio levels of the receiver, so every time I switch from the radio to the TV or vica versa, the volume has to be turned up or down a fair amount to get the same level from the speakers.

I am looking for some suggestions on how to boost the audio output level of the TV to be the same level as the radio.



Gordon Rix's picture

Re: Volume level balancing

If you don't mind possibly losing the audio from the tv speakers, you can take the audio from the headphone socket, by using a 3.5mm plug to twin phono socket adapter.

Re: Volume level balancing

In modern TVs audio out is shared with headphones.

There must be a "phones/amplifier" or "phones/line out" option in the audio menu and you have "phones" selected.

Turn the volume knob down before make the switching.

Happy 2.018!!

Re: Volume level balancing

No sense since request is edited.

frankieboy's picture

Re: Volume level balancing

Actually it now makes sense, as I have corrected the original request to reflect the actual situation. See my post of December 31st, 2017.

Re: Volume level balancing

On the receiver manual pics can be seen both, analog and digital links are done.

I assume the receiver needs the analog input only to "know" the signal level, but keeping the digital signal quality.

Re: Volume level balancing

I would go through the Sony KDL-48 audio menu to see if there is an output level setting.

frankieboy's picture

Re: Volume level balancing

That would be a great solution if there was a level adjustment for the output jacks. There isn't )-:

Re: Volume level balancing

How old is that TV? Most newer sets don't use "controls"; all adjustments are electronic and done inside an IC or microprocessor.
Have you checked the menu? Your TV appears to have about 5 different audio modes; you may be in the wrong mode. Can you call Sony for assistance with menu settings? Should be a phone number in the manual.

frankieboy's picture

Re: Volume level balancing

TV is 4 years old.

I did not see any items relating to audio output levels in the menus.

I'm not sure what "different audio modes" you are referring to, please clarity!

Sony assistance will not talk to me because the sets are beyond the warranty period. I did try.

Re: Volume level balancing

On the Sony you own, it has NO "audio output" for the RCA connectors, only INPUT, along with video Inputs.
What you might be hearing is low-level "bleedover" through the circuitry
Therefore, you must purchase and connect an optical-to-analog adapter to the Optical Audio Output terminal.
They cost about 20-40 dollars.
And purchase an optical cable as well.

This is how many manufacturers have been making their sets lately.
My 3 year old Panasonic is the same way.

frankieboy's picture

Re: Volume level balancing

You are absolutely right and I stand corrected. Just checked, the connection from the TV to the receiver is NOT an RCA cable but an optical cable, which goes from the optical output connector of the TV to the optical input connector of the receiver.

However, the problem is still the same, the output level from the TV is too low. I looked at the menus of the TV but can not find any level adjustment for the optical output.

Re: Volume level balancing

Hi,

The TV manual is available here online:
https://docs.sony.com/release/KDL-48W600B_40W600B_BRAVIA_i-Manual_EN.pdf

From the troubleshooting section for:
No audio or low audio with a home theater system.

Set [Speakers] to [Audio System] in the [Sound] setting.
Set [Headphone/Audio Out] to [Audio Out] and set [Audio Out] to [Fixed] in
the [Sound] setting.

This should set the audio to a fixed maximum output via the digital audio out and allow the Sony receiver to adjust the level for you.

Also, on the receiver, do you have all of the surround speakers hooked up? Most TV dialog is designed to come out the center channel. If you have the receiver set to a surround mode and do not have a center channel speaker hooked up, the volume will be very low. This is by design. To verify if this is an issue, when you are on the TV input, switch the receiver to the 2 channel stereo mode.

If you want to use the surround mode without a center channel speaker there is a setting in the receiver to not use a center channel speaker. This will then equally disperse the center channel information to the left and right speakers equally.

-bob

frankieboy's picture

Re: Volume level balancing

Thanks, Bob for the suggestion. The settings were already exactly as you listed:

[Sound] => [Audio System] => [Speaker]
[Sound] => [Headphone/Audio Out] => [Audio Out]
[Sound] => [Audio Out] => [Fixed]

However, the problem still exist.

Re: Volume level balancing

While it may be a tad irritating, the audio level through digital optical is low on purpose.
It's too complicated to explain, but it has to do with things like signal processing and peak levels of surround sound receivers.
My Panasonic TV has the same issue, I merely turn up the receiver volume, and don't expect it to be at the same analog level as other sources.

Re: Volume level balancing

Get you a small headphone amplifier off eBay and put it in between the TV and receiver using your original RCA cables. The amp will boost your signal enough to bring the volume up to speed.
Find one with a volume controller on it.
That's what I've got--works great

frankieboy's picture

Re: Volume level balancing

That is an excellent solution if you are using the analog RCA jacks. There is no such device (at least I could not find one) for the digital optical connections.