[Bug] 5.1 volume difference

[jeppie2]

Hello , i have my pch a-200 connected with a optical cable to my lg 5.1 surround set but when i play a movie i don`t hear the voices good but when something explodes in the movie i hear it very hard, i have dts set too passtrough not downmix.

i first thougt it was the movie but al my 902 movies act the same with the sound, so i changed the settings of lg home cinema to every thinkable setup but nothing helps, i was hoping someone could help me in the right direction.

regards

jesper

[accident]

are you sure the font center channel speaker is still functioning/connected? If your unit offers an automatic room balancing feature you might want to try it. It should setup each speaker output to optimum level.

[halfelite]

Couple things. if you are passing AUDIO in passthrough the PCH is not touching the audio so its not a pch bug, Second its pretty normal for the SFX to be. This has become the normal as people like loud bangs more and more. Options are if your avr has Dynamic Range Control turn it on it will level all the channel to the same level or if you can adjust your center speaker higher. I always turn my center channel up 2-3db higher then the rest

[jeppie2]

Downmix or passthrough it does not matter, when i watch a movie at night i can barely hear the voices but when an explosion sounds my wife explodes out of her bed.

my speakers have a range of -6 to +6 , my center speaker is at +6 and the rest is at -4 to make it soundable and im sure the center speaker works.

i have dynamic range control on on the pch and my avr just to be sure but it does not matter i still have it.

i am not saying its a bug i just wanted your opinion on it , i have this sound now for a year i was just wondering if i could do something about.

does it make a difference if i get a good receiver instead of my lg hb 905 ?
i thought it was a good bluray set.

thanks in advance

[Pernod]

Have you tried a surround test DVD, or a rip? It will output sound to each channel in turn so that you can at least confirm whether all speakers are functioning as expected.

As accident already mentioned it may be something as simple as a bad connection on the center speaker cable.

[jeppie2]

there is a test signal on the lg , all the speakers function normal.

when i play an mp3 the sound is perfect , when the sound of my tv comes through the lg its also perfect so it can not be the center speaker itself.

[accident]

my only thought left for this one is:
- problem with tv input, try a different one
- try wiping the flash and recover the firmware in case it's somethign corrupted in the firmware (#2 in http://www.networkedmediatank.com/showth...tid=62337)

[Martien]

What you experience is how it is supposed to be. The 5.1 audiomix is the same as in the theatre.
Dialogs are normalised on the same (low) level. Read about Dolby Dialog Normalization and Dynamic Range Control.


A correction of the front speaker does help to raise the dialoglevel but it has also effect on the explosions, unless they come from behind.
To watch movies at night, AVR's have a Night mode. Search for that.

If the DRC process does not work it is due to bad rips. The Dolby Metadata that controls it, has been removed from the audiotrack.


It is about time the BD industry incorporates the stereo PL TV mix on the Blu-Ray disk.
It is available on many SR master tapes I have seen around at my work.

[jeppie2]

okay so correct me if i`m wrong, the sound is normal and drc does not work because of the metadata not being in the dts or dolby stream, but when i downmix the channels to stereo, drc still does not work because of the metadata ?

i don`t have bad rips but i never watched if there is a drc metadata in the dolby or dts stream so that can be true.

so to make a long story short : i just have to turn up the center speaker because this is as good as it gets ?

thanks for the reply

[accident]

Quote:this is as good as it gets?

If part of the audio data is missing, perhaps looking at how your ripping can achieve better success in future rips to make sure it's preserved.

Not sure I would call this a bug at the moment, but a request to raise center channel volume when DRC isn't present sounds like a great enhancement syabas should consider.

[halfelite]

Most ripping software removes the drc data from the audio stream. So while it's not a bad rip it's missing parts. And tv is fine because tv audio is normalized at the source. Ever watch a show or a movie then a commercial come on and blast your ears.

[Martien]

(08-12-2012 07:31 PM)halfelite Wrote:  Ever watch a show or a movie then a commercial come on and blast your ears.

Not in the Netherlands, sound is measured with Loudness meters.
It is one of the nice things the EBU brought us.
And if there is no TV audiomix on the master, we mix them ourselves with the EBU recommendation in mind.

[halfelite]

(08-12-2012 10:28 PM)Martien Wrote:  

(08-12-2012 07:31 PM)halfelite Wrote:  Ever watch a show or a movie then a commercial come on and blast your ears.

Not in the Netherlands, sound is measured with Loudness meters.
It is one of the nice things the EBU brought us.
And if there is no TV audiomix on the master, we mix them ourselves with the EBU recommendation in mind.

lucky best we can do is most DVR's have built in audio normalization that you have to turn on.

[Martien]

And for a proper rip try BD-Rebuilder, after rencode you have a choice of Dolbytrack with or without metadata.
The track with the capitals has the Dolby-metadata removed.