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DVD Audio extractor ripping rears at different volume levels?

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northernsoul

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I rip my discs then open flac files with audacity, but rears are always at different volume levels. Has this ever happened to anyone?
 

par4ken

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I rip my discs then open flac files with audacity, but rears are always at different volume levels. Has this ever happened to anyone?
With many/most 5.1 mixes the rears are much lower level than the fronts. I think that most posters here prefer the old Quad style mixes, with equal levels from all channels. Steve Wilson 5.1 mixes are usually very immersive much like the old Quad mixes. Sometimes bringing up the rear levels a few dB will improve the sound.
 

LuvMyQuad

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With many/most 5.1 mixes the rears are much lower level than the fronts. I think that most posters here prefer the old Quad style mixes, with equal levels from all channels. Steve Wilson 5.1 mixes are usually very immersive much like the old Quad mixes. Sometimes bringing up the rear levels a few dB will improve the sound.
Yes, agreed, but that isn't something that can be done within DVDA-E. Most will either accomplish that boost on the fly as they play or with something like Audacity which makes the boost permanent.
 

northernsoul

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With many/most 5.1 mixes the rears are much lower level than the fronts. I think that most posters here prefer the old Quad style mixes, with equal levels from all channels. Steve Wilson 5.1 mixes are usually very immersive much like the old Quad mixes. Sometimes bringing up the rear levels a few dB will improve the sound.
Lol I do not mean that. I am not a newbie to 5.1. I have been mixing and editing for years.
I mean the rears have different levels to each other when they should be equal.
 

ssully

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From what disc, in particular?

I don't see any options to adjust levels on a per-channel basis during extraction in DVDAE. There is only an overall normalization option.
 
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HomerJAU

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I don't see any options to adjust levels on a per-channel basis during extraction in DVDAE. There is only an overall normalization option.
Music Media Helper has a new tool to batch change individual channel volume for multiple FLAC files:


EDIT: You can download MMH from here (Windows only):
 
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HomerJAU

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I have ripped many 4.0 discs using DVD Audio Extractor as WAV files, with no change in rear channel levels, compared to playing the disc. This applies to both DVD-Audio and Blu-Ray discs.
Same here. DVDAE makes a copy of the original.

Rear channel levels are often mixed lower. Giving these a boost often benefits the listening experience, increasing the perceived surround effect.
 

ssully

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Same here. DVDAE makes a copy of the original.

Rear channel levels are often mixed lower. Giving these a boost often benefits the listening experience, increasing the perceived surround effect.
The OP is saying his rear left vs right are being ripped at different levels.


(Also funnily enough for Audyssey users, using 'Dynamic EQ' (a smart form of loudness control) does what you say -- boots rear channels a bit. People being people, it's something Audyssey uses complain about.)
 
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jimfisheye

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The ripping apps (DVD Audio Extractor & DVDA Explorer) only copy the audio data 1:1.
You would need to have a script or app running to alter the files after ripping from the disc (or disc image).

Maybe you DO have some media utility script or app running? It would have to be nothing less to alter the files.

This is digital audio. That means any corruption in the signal (to entertain that theory) is glaring. Often to the point of turning it to pure noise. In the same way that a digital image gets pixelated instead of blurry. Something like slightly reduced volume could not follow data corruption.

If we can assume this is content you are familiar with and that you have accurately identified a volume alteration vs a different known good and unaltered copy, I'll suggest the root cause of the mystery is not the ripping apps.
 

hipp

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I only listen to surround music, prologic and discrete. It is the discrete where the listener has to accept the original surround mix as it was mixed by the mixing engineer. I sometimes wonder what they were doing and agree that the rears can have different levels. If there is a pan, for example, the Left rear may sound lower or higher than when it played through the Right rear. Therefore there is a discrepancy in levels. I have not found however any discrepancy when using DVDAE rips compared to the source original disk. I have several hundred surround ripped disks on my server.
My processor allows me to adjust individual db levels for each speaker so I am often tweaking the surround effect. There is no standard, just some sound better to me than others. Purely a subjective analysis!
 

jimfisheye

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If you have a system with the ability to alter the program - like tone controls or speaker level controls on a receiver - you are "remastering" your music yourself.
Goes without saying that doing something as altering as generating an upmix from a stereo or mono source is very much remastering something! (You could try to call this example "remixing". That would require describing the initial "unmixing" steps as successful... But that's a discussion for another time.)

I go from 0 to 100.
Normally I'll listen to someone's master of a mix strictly 1:1 for good or bad. I want to hear what they did and I'll form an opinion like any good asshole. (I WILL normalize volumes if I start A/B'ing something of course! Probably better just run along with your tinny '90s volume war CDs.)
If I decide that I want to obsess over someone else's work and alter the presentation, I'll insert a whole DAW app into the signal path! (I want more than eq and speaker level controls!) It could be anything from disagreeing with a treble slammed "portable device" mastering to a speed mistake to incorrect channel order to something more genuine of a disagreement around the eq and/or dynamics balance of the master. Or something old and damaged in need of more thorough restoration.

"Mastering" has become a bad word. It appears to be often thought of a synonymous with the shrill squashed and treble slammed CD style mastering. In reality, there are examples of masters that strictly preserve a final mix into a format, those that genuinely improve and "finish" a mix, and those that fully destroy what was an excellent mix. And everything in between.

Digressing a bit from ripping apps...
 

northernsoul

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If the OP would give us an example of a disc displaying this ripped behavior in with DVDAE, we could verify easily
The Who Quadraphenia Blu Ray.
Opeth In Cauda Blu
Nightwish Once

I open the flac files and one of the rears is lower than the other. Happens even when music is same on both files. I know some info in rears can be at different levels depending on mixing choices; I do not mean that. I mean when the files are supposed to be the same.
 
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himey

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The Who Quadraphenia Blu Ray.
Opeth In Cauda Blu
Nightwish Once

I open the flac files and one of the rears is lower than the other. Happens even when music is same on both files. I know some info in rears can be at different levels depending on mixing choices; I do not mean that. I mean when the files are supposed to be the same.
Are you sure you don't have a hardware issue of some sort? What makes you think it is DVD Audio Extractor and have you troubleshoot by using MakeMKV and Audiomuxer to see if you have the same issue, and rule out the ripping process.
 

ssully

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The Who Quadraphenia Blu Ray.
Opeth In Cauda Blu
Nightwish Once

I open the flac files and one of the rears is lower than the other. Happens even when music is same on both files. I know some info in rears can be at different levels depending on mixing choices; I do not mean that. I mean when the files are supposed to be the same.

I'm guessing you mean when the music is the same in both *channels* (left rear and right rear) of the same flac file ? Or are you ripping each channel to a separate flac file?
 
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