"Cinavia"/Verance BluRay audio watermark protection

[Ghitulescu]

In the last issue of c't (also available online), 13/2013, was published an article about cinavia.

[sneaker_ger]

It's in 12/2013.

[1Bullet]

What I am trying now is ripping the DVD and BD audio out by chapters. Out of all my combo packs, I don't have one that has the same audio in the DVD as the BD. Using Salt as an example, the BD length is 1:43:28, the dvd is 1:43:23 . The only chapters that are the same length are 2,3,5,6,7,9,11,14 and 16. This doesn't mean there identical either. My plan is convert each of these chapters into its own wave file. Then using Audition load the BD chapter and using noise reduction effect. Iwill use the entire DVD chapter as my noise print. If any of the chapter I mention turn out to be identical to the BD(only hoping) I should only be left with Cinavia. Then using what is left in the BD as a new noise print, this should if reduce Cinavia as noise. Again only if I captured cinavia. Just started this process so I some has tried it before and it failed let me know.
I'll be back with my updates.

[Ghitulescu]

You need to use a DVD with the same number of channels as the BD, which usually have at least 5.1.
Then you have to see whether the mix is the same (as any difference would be interpreted as "noise").
Finally you have to guess where the cinavia is hidden, or repeat the procedure for each channel in part.
That's a lot of work. Besides, from what I know, cinavia is not a statistical noise, in other words denoising a noise-free sound simply worsens it.

But if you manage to do it :thanks:

[rotty]

What I am trying now is ripping the DVD and BD audio out by chapters. Out of all my combo packs, I don't have one that has the same audio in the DVD as the BD. Using Salt as an example, the BD length is 1:43:28, the dvd is 1:43:23 . The only chapters that are the same length are 2,3,5,6,7,9,11,14 and 16. This doesn't mean there identical either. My plan is convert each of these chapters into its own wave file. Then using Audition load the BD chapter and using noise reduction effect. Iwill use the entire DVD chapter as my noise print. If any of the chapter I mention turn out to be identical to the BD(only hoping) I should only be left with Cinavia. Then using what is left in the BD as a new noise print, this should if reduce Cinavia as noise. Again only if I captured cinavia. Just started this process so I some has tried it before and it failed let me know.
I'll be back with my updates.

There is a problem trying to use differetial o/p from the Cinavia infected audio.
Not only does the audio have the watermark, it also has a slow shifing phase, both + and - is also introduced, this is random.
This means that even where the audio is exactly the same, you will still unfortunately get an o/p from your diff amp.
There will also be "Red Herrings" within the audio.

[1Bullet]

I am not saying yet, that this is Cinavia, but after long hours of work I have discovered the following differences between the Salt dvd and Blue-ray 5.1 audios in chapters, 2,3,5,6,7,9,11,14 and 16. I have a noise patch of of it. Now its time to apply the patch across the entire BD audio. if hopefully works I have to do another movie to see if I get same results. If pic of link works say hello to what iam really hoping to be Cinavia. if its really Cinavia it is only in channels 1,2 and 3.

http://i82.photobucket.com/albums/j241/1Bullet_2006/Cinavia.jpg (http://s82.photobucket.com/user/1Bullet_2006/media/Cinavia.jpg.html)

[rotty]

I am not saying yet, that this is Cinavia, but after long hours of work I have discovered the following differences between the Salt dvd and Blue-ray 5.1 audios in chapters, 2,3,5,6,7,9,11,14 and 16. I have a noise patch of of it. Now its time to apply the patch across the entire BD audio. if hopefully works I have to do another movie to see if I get same results. If pic of link works say hello to what iam really hoping to be Cinavia. if its really Cinavia it is only in channels 1,2 and 3.

http://i82.photobucket.com/albums/j241/1Bullet_2006/Cinavia.jpg (http://s82.photobucket.com/user/1Bullet_2006/media/Cinavia.jpg.html)

What amplitude are those blips compared to the average audio amplitude.

[rik1138]

Has anyone tried a reference and diff attack on this?

I mean, it would be painfully easy if they made the mistake of cinavia-protecting a BD version without doing so for DVD, but even if they have not, there's a good possibility that diffing out a large number of tracks would give you what you need to extract.

Yes, apparently there are people that have uncompressed audio before and after Cinavia was applied. Companies like Slysoft I believe are working on it, so there may be some solution, someday... The problem still remains that removing it requires extracting the audio to WAV files, doing whatever to remove it, and then either encoding it back to DTS-HD MA, or just leaving it 5.1 PCM (or whatever). Both present problems since there's no free DTS encoder available, and 5.1 PCM may not fit back on a disc (or may cause bitrate problems)... It's not something that can just be removed 'real time' like AACS.

For the 'average' user, the best solution will probably always be just having a player that doesn't support it.

[microchip8]

... there's no free DTS encoder available ...

Sure there is: http://aepatrakov.narod.ru/index/0-2

But it doesn't support DTS HD MA

[rotty]

Yes, apparently there are people that have uncompressed audio before and after Cinavia was applied. Companies like Slysoft I believe are working on it, so there may be some solution, someday... The problem still remains that removing it requires extracting the audio to WAV files, doing whatever to remove it, and then either encoding it back to DTS-HD MA, or just leaving it 5.1 PCM (or whatever). Both present problems since there's no free DTS encoder available, and 5.1 PCM may not fit back on a disc (or may cause bitrate problems)... It's not something that can just be removed 'real time' like AACS.

For the 'average' user, the best solution will probably always be just having a player that doesn't support it.

Yes, this has always been the problem, even if it could be removed.

I still believe that the watermark is prity much non reversable, i.e. cannot be removed without un acceptable damage to the audio.

Slysoft are using the phrase "possible soloution" when talking about Cinavia. So their solution may not be to actually remove it.

Time will tell.

[rik1138]

Sure there is: http://aepatrakov.narod.ru/index/0-2

But it doesn't support DTS HD MA

Well, yeah, the conversation I was having was about lossless audio since I mentioned DTS-HD MA previously. I don't consider replacing lossless audio with lossy audio an option at all, even if it did remove Cinavia. :D

Yes, this has always been the problem, even if it could be removed.

I still believe that the watermark is prity much non reversable, i.e. cannot be removed without un acceptable damage to the audio.

Oh, it can be removed... It's just a waveform of sorts, if it can be added in, it can be taken out.

The main issue may be that the changes made to the audio are either different for each title, or can be changed at any time. So even someone figures out exactly what to remove and a way to do, they may be able to just change it and you have to figure it out again. If the only reliable way to figure out what to remove is comparing two _lossless_ audio files with and without Cinavia, that might get hard to do repeatedly.

[rotty]

Well, yeah, the conversation I was having was about lossless audio since I mentioned DTS-HD MA previously. I don't consider replacing lossless audio with lossy audio an option at all, even if it did remove Cinavia. :D



Oh, it can be removed... It's just a waveform of sorts, if it can be added in, it can be taken out.

The main issue may be that the changes made to the audio are either different for each title, or can be changed at any time. So even someone figures out exactly what to remove and a way to do, they may be able to just change it and you have to figure it out again. If the only reliable way to figure out what to remove is comparing two _lossless_ audio files with and without Cinavia, that might get hard to do repeatedly.

Its not a waveform added to the audio, it is modification of the existing audio.
The watermark cannot exist for example in silent portions of the audio.
It modulates the audio itself, this is why it is hard to remove without damage.

Also, you cannot use two examples of the same audio (one with the watermark and one without) to get a differential output. The watermarked audio is being deliberately phase shifted slowly both leading then lagging randomly. This will therefore ALWAYS give a diff output even where the audio is exactly the same. There are also signals added to give diff output as red herrings and have nothing to do with the watermark itself.

One way to defeat the marking is not to remove anything but to add audio to the signal.

[Ghitulescu]

Actually, even if it's a modification of the sound (which indeed is, cinavia is not embedded in silent portions of audio, nor in those below a certain threshold), it still can be removed this way, provided one has a clean copy of the same track (ie the one used for watermarking). The "denoise" function would restore the audio, at least in theory.

[rotty]

Actually, even if it's a modification of the sound (which indeed is, cinavia is not embedded in silent portions of audio, nor in those below a certain threshold), it still can be removed this way, provided one has a clean copy of the same track (ie the one used for watermarking). The "denoise" function would restore the audio, at least in theory.

Yes thats what I said, it cannot exist in silent portions of the audio.

You can use "clean" audio tracks to replace the Cinavia tracks (provided they are timecode exact) but you cannot use "clean" audio tracks to denoise the Cinavia tracks, because the Cinavia tracks are being phase shifted constantly therfore they will never overlay correctly.

[Ghitulescu]

... because the Cinavia tracks are being phase shifted constantly therfore they will never overlay correctly.

True, but this wasn't for the purpose of recovering the original track (which exists :) ) but to defeat the recognition of cinavia.

[rotty]

True, but this wasn't for the purpose of recovering the original track (which exists :) ) but to defeat the recognition of cinavia.

How, you cant compare them or add or subtract them because the watermarked tracks are moving in phase +/-.

You can use it instead of the original but thats all.

The original information can only still exist in the watermarked audio if the watermark had simply been added to the audio, if it modulates the original, then the original audio is changed, the original information in the new watermaked audio has been lost.

If you have the copy of the original audio then there's no problem, but this is not defeating Cinavia, its just putting it back as original. I we had access to the lossless original audio each time then Cinavia would not be viable at all, but unfortunatley this is not the case at all.

[BoMbY]

It probably has some weakness. Maybe a buffer overflow, or something, you could trigger to confuse the detection.

[rotty]

It probably has some weakness. Maybe a buffer overflow, or something, you could trigger to confuse the detection.

Im sure your right about weakness, I hope people dont think im saying it cant be overcome, im sure it can be.

It already is of course with a stand alone or S/W player that does not detect it or a S/W player that does detect it but has been disabled by Slysoft option.

A bit of lateral thinking perhaps.

Lets take the PC, any player will play a disk with the watermark if certain criteria are met.

We need 2 programs, one program to produce a special ISO Image and one program that is a special Virtual drive.

The Image must be left encrypted as original and hold the keys required for decryption just like a BD ROM. This together with the special Virtual drive must make the image look exactly like a physical BD ROM.
As I just said, the ISO has to have all the info as original from the original disk, it does not have to hold this info in any particular way or format, its the job of the special Virtual drive to take this ISO info and arrange it to make it look exactly like the original BD ROM.
With this option, we do nothing to dissrupt/remove the watermark, the player has no choice but to allow it to play as if it is the original disk.
The Virtual drive would have to be "cloaked" as far as the PC is concerned and must look like a physical optical drive so the player software cannot detect it.

Im sure there are loads of lateral thoughts out there that may well work.

Adding signal(s) to the audio my block the detection and so on and so on.

[Big Vern]

http://www.myce.com/news/cinavia-copy-protection-cracked-with-freeware-67808/

Myce user Macrovision3500 reports on our forum that the Cinavia copy protection is broken by using freely available and opensource software. Unfortunately the method has a drawback, it degrades the audio quality of the movie. By using the opensource audio editor Audacity with settings as stated here you can create an audio track from which the Cinavia protection is removed.

Macrovision3500 has tested the solution with his Playstation 3 with the latest firmware and confirms it works. While the audio quality might not be acceptable for many users, this is a great proof of concept. The Cinavia protection works by adding a watermark to the audio track of movie. Therefor many belief it should be possible to remove the protection by making changes to the audio track.

It seems that this technique indeed breaks the Cinavia protection. The method can probably be fine-tuned and might become an excellent method to enable users to make backups of Cinavia protected discs.

There are other ways of backing up discs that are protected by Cinavia. With the paid applications AnyDVD and DVDFab it’s possible but they require frequent updates. Also the developers of DVDRanger claim to have a working solution, unfortunately it has not been released yet.


How to disable Cinavia
Cinavia removal

1st download an app that converts video to audio...I would recommend
Freemake Video Converter. then,
get an program named Audacity open the mp3 audio converted in freemake
and open the file in Audacity choose File>Open then Edit>Select>All
then go to Effect>GVerb
make sure to have the following config:

roomsize (m):1.0
reverb time (s): 0.1
Damping: 0.0
Input Bandwidth: 0.20
Dry Signal (db): -7.0
Early reflection level (db): 0.0
Tail Level: -17.5

save

then choose file export save as other uncompressed files then save...
make sure to merge audio sources with freemake video converter.

If you go here;
http://forum.videohelp.com/threads/357132-Cinavia-removal-technique
You can download a "before" and "after" mp3 using the above method. It does sound pretty rough, but I'm sure with some more tweaking, a better solution can be achieved?

[rotty]

Hi Big Verne

Like I said in post #1960.

"I still believe that the watermark is prity much non reversable, i.e. cannot be removed without un acceptable damage to the audio."

The after MP3 is dreafull, as you would expect it to be, to remove the watermark or make the watermark unreadable in this way, you really have to be destuctive.

I dont think it would be possible to "fine tune" this method.

[Emulgator]

roomsize (m):1.0
reverb time (s): 0.1
Damping: 0.0
Input Bandwidth: 0.20
Dry Signal (db): -7.0
Early reflection level (db): 0.0
Tail Level: -17.5

Ouch. That reverb will mask it while sacrificing the original signal.
Nah, lets run a FFT against those cinavia blips and filter only these.

I have no BD/DVD comparison example, 1Bullet, do you mind giving me your files, PM me.

[rotty]

Ouch. That reverb will mask it while sacrificing the original signal.
Nah, lets run a FFT against those cinavia blips and filter only these.

I have no BD/DVD comparison example, 1Bullet, do you mind giving me your files, PM me.

This is the problem, the only chance you have of identifing what is Cinavia to remove and what is audio that should be there is to compare a non infected audio with the infected audio, if you have non infected audio then there's no point anyway, just use that un infected audio to replace the oroginal track(s).

I also use the word chance because as I have already said, the whole Cinavia track is deliberatly phase moving constantly so the two tracks wont overlay correctly so cannot be directly compared and there are red herrings also.

[Gradius]

Use poison to kill poison. ;)

[rotty]

Use poison to kill poison. ;)

Yes, like I said in post #1962
One way to defeat the marking is not to remove anything but to add audio to the signal.

[Big Vern]

Cinavia finally beaten, so it seems!

http://www.myce.com/news/dvd-ranger-cinex-module-beta-tested-beats-cinavia-68353/

Our test was conducted by forum administrator and video expert Kerry56. For the test he used Arcsoft TotalMedia Theater. This Blu-ray playback software is known to detect the Cinavia watermark. Backups of a movie protected with Cinavia will mute the audio after about 20 minutes and show a Cinavia message. Kerry56 created a backup of a Blu-ray disc with DVD-Ranger and CinEx, this backup passed the 20 minutes mark. The entire movie was played and again no sign of Cinavia.

To make sure the combination of the Blu-ray movie and Arcsoft TotalMedia Theater really triggers the protection, a backup of the disc with regular Blu-ray backup software (without CinEx) was created. As expected this backup indeed triggered Cinavia protection. This means that DVD-Ranger seems to have overcome their difficulties and is now ready to improve this beta version.

[rotty]

I would say that they will never be able to improve the damaged audio caused by this process to a point that would come anywhere near the quality that you would expect even from lossy audio like say AC3. Nowhere near it.

So as for HD audio, well no way.

[Wilbert]

A quote from the link that Big Vern posted
To prove their understanding of Cinavia, the developers also released a whitepaper providing more details on the protection.

Where can we get the whitepaper?

Apparently the sound quality is very bad after removal: http://forum.videohelp.com/threads/357132-Cinavia-removal-technique.

[Big Vern]

Apparently the sound quality is very bad after removal: http://forum.videohelp.com/threads/357132-Cinavia-removal-technique.

That is not the DVD Ranger's "CinEx module" version. That was a different attempt.

More from DVD ranger...

The CinEx module from DVD-Ranger is in Beta but we have confirmed that it indeed bypasses the Cinavia protection. Unfortunately the audio quality of the copied movie is far from perfect, but the lead developer of the software has told us that he and his team are now at the point where they know how to improve the audio quality considerably

Its a start.

[Ghitulescu]

Cinavia finally beaten, so it seems!

http://www.myce.com/news/dvd-ranger-cinex-module-beta-tested-beats-cinavia-68353/

Our test was conducted by forum administrator and video expert Kerry56. For the test he used Arcsoft TotalMedia Theater. This Blu-ray playback software is known to detect the Cinavia watermark....The entire movie was played and again no sign of Cinavia.

To make sure the combination of the Blu-ray movie and Arcsoft TotalMedia Theater really triggers the protection, a backup of the disc with regular Blu-ray backup software (without CinEx) was created. As expected this backup indeed triggered Cinavia protection. This means that DVD-Ranger seems to have overcome their difficulties and is now ready to improve this beta version.

I would say that they will never be able to improve the damaged audio caused by this process to a point that would come anywhere near the quality that you would expect even from lossy audio like say AC3. Nowhere near it.
So as for HD audio, well no way.

That is not the DVD Ranger's "CinEx module" version. That was a different attempt.

More from DVD ranger...

The CinEx module from DVD-Ranger is in Beta but we have confirmed that it indeed bypasses the Cinavia protection. Unfortunately the audio quality of the copied movie is far from perfect, but the lead developer of the software has told us that he and his team are now at the point where they know how to improve the audio quality considerably

Its a start.
This start was discussed 3 or 4 years ago.
A good start would be the provision of a modified audio track that would differ from the original as an MP3 differs from the CD it originates.
One could even inject false information, equally "inaudible" into the audio so it would interfere with the detection algorithm, and this would be better.

[BaRRoS]

Where can we get the whitepaper?

Hope I dont break any rules by posting links..

http://www.dvd2hd.com/_dl/cinex_wp_release1.pdf

[Kerry56]

I posted some before and after audio clips over at Videohelp.com. The Cinex module for DVDRanger is not producing good sound at all. Here (http://forum.videohelp.com/threads/357938-Cinavia-removed-by-DVDRanger-Cinex-module)is the thread.

[rotty]

I posted some before and after audio clips over at Videohelp.com. The Cinex module for DVDRanger is not producing good sound at all. Here (http://forum.videohelp.com/threads/357938-Cinavia-removed-by-DVDRanger-Cinex-module)is the thread.

No. And it never will by this process.

By non reversable, I of course mean, cannot be removed and leave an acceptable audio track.

Even applying audio to the track to disrupt the reading of the watermark in not exactly attractive.

Out of ALL the options, the best by far are:

1.. Standalone or s/w players that dont take any notice of the watermark.

2.. S/W players that have the detection flag(s) disrupted, i.e. by AnyDVD.

[johndough]

The DVD-Ranger cinavia module is chuckle worthy but this is
the real deal:



Cinavia removal:

1st download a program that can extract audio from video...I would recommend
freemake video converter. then
get an program named Audacity open the converted audio file in freemake
and open the file in Audacity choose File>Open then Edit>Select>All
make sure to have the following setting:


Effect>Equalization: Walkie Takie Preset.

then go to Effect>GVerb

Make sure to have the following settings:

roomsize (m):1.0
reverb time (s): 0.1
Damping: 0.0
Input Bandwidth: 0.05
Dry Signal (db): 0.0
Early reflection level (db): 0.0
Tail Level: -17.5

Then click on:
Save

then choose file export save as other uncompressed files then save...this may take a
while depending on the computers performance....
Now with both sources...
make sure to merge audio sources with freemake...
drag and drop the video to the app...click on the audio speaker where there is
a link...select the audio file created with Audacity select desired Video format and wait for the file to be converted.

Have fun.

[rotty]

The DVD-Ranger cinavia module is chuckle worthy but this is
the real deal:



Cinavia removal:

1st download a program that can extract audio from video...I would recommend
freemake video converter. then
get an program named Audacity open the converted audio file in freemake
and open the file in Audacity choose File>Open then Edit>Select>All
make sure to have the following setting:


Effect>Equalization: Walkie Takie Preset.

then go to Effect>GVerb

Make sure to have the following settings:

roomsize (m):1.0
reverb time (s): 0.1
Damping: 0.0
Input Bandwidth: 0.05
Dry Signal (db): 0.0
Early reflection level (db): 0.0
Tail Level: -17.5

Then click on:
Save

then choose file export save as other uncompressed files then save...this may take a
while depending on the computers performance....
Now with both sources...
make sure to merge audio sources with freemake...
drag and drop the video to the app...click on the audio speaker where there is
a link...select the audio file created with Audacity select desired Video format and wait for the file to be converted.

Have fun.

This is the same as the so called Cinavia solution in post #1969 execpt Dry Signal was 7db down.
The resutling audio was dreadfull.

I think the Effect>Equalization: Walkie Takie Preset is the giveaway.

[johndough]

This is the same as the so called Cinavia solution in post #1969 execpt Dry Signal was 7db down.
The resutling audio was dreadfull.

I think the Effect>Equalization: Walkie Takie Preset is the giveaway.

Its not the same...heres a before an after:


http://www.putlocker.com/file/A1FB54E357B16D09 before
http://www.putlocker.com/file/F241ADAC3349C1BE after


Its a tweaked version of the settings. with better results.

[Ghitulescu]

1st download a program that can extract audio from video...I would recommend freemake video converter. then get an program named Audacity open the converted audio file in freemake and open the file in Audacity choose File>Open then Edit>Select>All make sure to have the following setting:

I believe that the members of this forum know some 20 years now how to demux the audio from a container, and not to use a "video converter" (hä???) for treating audio.

[rotty]

Its not the same...heres a before an after:


http://www.putlocker.com/file/A1FB54E357B16D09 before
http://www.putlocker.com/file/F241ADAC3349C1BE after


Its a tweaked version of the settings. with better results.

Have you tried this yourself.

Just put a wav or mp3 file thru this process with the settings you have stated.
The result is aboslutley dreadfull.

EDIT
Do you work for Verance, is this their attempt to try and make it look like there's no hope against this.

[Ghitulescu]

Do you work for Verance, is this their attempt to try and make it look like there's no hope against this.
Working for Verance or not, there is no hope.
The only hope is to buy now a media player that does not (yet) obey cinavia detection and run copies through it. This is the only solution up to day, that would work without adversely affecting the sound quality. I said this 3 or 4 years ago.

[rotty]

If you are talking of removal then I would agree.
Other options, and so as to "no hope" then I would'nt agree.

[setarip_old]

@Ghitulescu

Hi!

Although "Cinavia"/Verance watermarking has thusfar proven to be irreversible and/or eliminated as a mass protection, that's not to say wiser, more persistent folks won't eventually overcome it.

However, on the skeptical side, the solution may arrive after the protection ceases to be relevant - and it may just wind up being a "challenge met" exercise...

[omegaman7]

I'm betting somebody knows something. I find it rather interesting, that $ony is the only company massively supporting Cinavia. I suspect other companies may be aware of a possible circumvention. Hopeful thinking? Conspiracy theory? Perhaps. But then, perhaps the other companies are being asked to pay a ridiculous sum of money to employ it? One thing's for sure. If ALL the companies were suddenly using it, there would exist an even larger need, to circumvent it. Myself, I don't even give it much thought. None of my devices support detection. Though I do find this "irreversible" protection scheme intriguing.

I don't believe in the no win scenario... :p

[rotty]

I'm betting somebody knows something. I find it rather interesting, that $ony is the only company massively supporting Cinavia. I suspect other companies may be aware of a possible circumvention. Hopeful thinking? Conspiracy theory? Perhaps. But then, perhaps the other companies are being asked to pay a ridiculous sum of money to employ it? One thing's for sure. If ALL the companies were suddenly using it, there would exist an even larger need, to circumvent it. Myself, I don't even give it much thought. None of my devices support detection. Though I do find this "irreversible" protection scheme intriguing.

I don't believe in the no win scenario... :p

This could be true but they all know that CSS (for DVD) is broken and still use it, they all know that AACS is broken and still use it (although is mandatory), they all know that BD+ is broken and some use it.

[omegaman7]

This could be true but they all know that CSS (for DVD) is broken and still use it, they all know that AACS is broken and still use it (although is mandatory), they all know that BD+ is broken and some use it.

Guess they figure they can detour a few people LOL!

[rotty]

Guess they figure they can detour a few people LOL!

LOL I reckon your right.

I just wish that this extra cost for these usless systems on our disks was NOT passed on to us, the paying public.

[junh1024]

Breaking cinavia (without complete sonic destruction) could be within reach.

The key here is PHASE (reading wikipedia & etc)..

Cinavia chose to work in the phase domain, since that is mostly imperceptible, and is less conquered, than say,m the frequency domain.

Also, cinavia is an audio problem. So asking on Hydrogenaudio would’ve been more appropriate, and perhaps a solution would’ve been converged to faster,. but I digress.

I don’t think I have any CInavia BDs to test this on, and the BDs that I want to buy from a certain retailer are usually out of stock….

The plugins below are mainly VSTs so u will need a compatible host.

Some possible methods require the use of a proper commercial DAW such as REAPER ( www.reaper.fm ), Audacity may work, but dealing with VST authorization may not work in all cases. I won’t provide full step-by-step instructions on how to add an FX or how to operate a DAW. But here are some suggestions for those that know how to operate one:


NB: all these methods r 4 stereo, but may b xtended 2 surround with some chaining.

FREE TOOLS PROBABLY START HERE ==============

M1:

Brickwall Lowpass, soft lowpass, lowshelf, 8kz with any sharp EQ. I use Izotope Ozone 5 Eq, but there may be free ones available

Why 8khz? See here: http://forum.videohelp.com/threads/357132-Cinavia-removal-technique?p=2257033&viewfull=1#post2257033

M2:

As above AND use an exciter to fake some frequencies beyond 8k. I use Izotope Ozone 5 Eq & Ozone 5 Exciter, but there may be free ones available.

M3:

Resample to 32khz and encode using HE-AAC. this will mean that the SBR band runs from 8->16khz, so hopefully making the phase less original.

M4:

Use a delay imager, which mixes each channel into the other, wuth a delay. May sounds a bit horrid, but worth a shot.

M5:

Use any Binaural/HTRF implementation like FFMPEG earwax DSP or TB_IsoneSurround.

M6:

Use any IIR EQ and make random boosts/cuts.

FREE TOOLS PROBABLY STOP HERE ==============

M14:

Use a multiband reverb like Wavearts Masterverb or Meldaproduction MMultibandReverb. Reverbs work because they change the phase a bit (also why the technique in some earlier posts work)

M15:

Change the phase using say, Izotope Ozone 5 EQ in mixed-phase mode. Make a node, boost it by X dB. Make another node at the same frequency, but attenuate it by X dB. Change the phase of one or both. Preferably, both the nodes are above 8k (why as stated above).

M16:

As above, but use parameter modulation in REAPER to change the phase over time. Preferably the random preset with a low hz, since this is probably most unlikely to resonate with the phase stuff that they do\.

M17:

Use Audition3 (Newer versions won’t work). Apply the Stereo Imagery:Graphic panner FX. Select the Phase curve tab, and check auto-center pan.




EDIT: actually M17 may not work since I think it changes the Phase difference. Very subtle, but important disctinction btw Phase and Phase difference, which is sometimes shortened to Phase.


M18:

Use a VST that isn't linear-phase like Voxengo transgainer 1.2- or probably 1.3+ with 'legacy algorithm' (&/+ supersample with min.-phase) or SPL De-verb or DTSneural upmix with width = 100% and depth = +100%. MUST be this DTSneural upmix, since DTSnu mucks with the phase (but perhaps not in the right places)

M19:

Use a comber such as PSP stereoenhancer or Nugen Stereoizer. Play with the image & slice width settings. Additionally, take only one channel, and recomb it and restereoize it with Izotope RX2's Deconstruct T+N.

Also, the JS:gfxanalyzer in Reaper shows phase iirc. May be useful (or not)

I have not tested any methods above, but here are some starting points:///

[Ghitulescu]

Have you personally tested all methods and it worked? You said you didn't but you also did not do was to read the thread before posting.

AFAIK, cinavia is located much lower, like in the 4kHz range, as to survive camcorders' microphones in cinema theatres :) It is also so low located to survive lossy compression schemes that throw away "unimportant spectrum ranges" - depending on the source 8kHz may not be important at all.

Brickwalling a movie at 8kHz is not that critical (in the end this was for years the audio range of VHS), but for concerts, which are also more expensive and the demands are greater, it would mean shooting his own leg.

[johndough]

Best Cinavia removal: get a program named: AVS Video Editor...drag and drop video to its interface then select the video
and drag to timeline...go to "audio" you will see "audio effects settings"
click pinch shift make sure to check mark it....and enter rate: 115
keep in mind the (default rate is 100.) however enter 115 and click "OK" then click produce...
and soon you will have a cinavia free video. with a little deep audio tone. Very enjoyable quality unlike before.
Have a nice day.

[Ghitulescu]

It was tried before (https://forum.slysoft.com/showthread.php?41581-Blocked-BD-copy-playback-(Cinavia)&p=271130#post271130).

[johndough]

It was tried before (https://forum.slysoft.com/showthread.php?41581-Blocked-BD-copy-playback-(Cinavia)&p=271130#post271130).

His pinch was at a low 4% mines 15% and he was using a CAM recording I am using a retail bluray copy the one with the 20 Minutes cinavia error.

[Ghitulescu]

There are thousands of ways to remove cinavia if one disregards the quality of the final audio. One can simply inject a disturbing frequency in the cinavia presence range, like 4200 Hz, and solves the problem. Like the "masking" of enemy radio broadcasts during the war. The watermark is covered by the disturbing frequency and the detection algorithm will fail to read the stego key and therefore cinavia will NOT be triggered.

The only problem is that people have ears. :)

There are people objecting to PALspeedup (which is ~4%). I believe they would die hearing a 15% pitch change.

I am in favour of personal copy, as a measure for protecting one's own investment. And therefore I am against cinavia and other content-destroying DRM schemes. But people that distribute CAM and AVIs and whatever is now in fashion, they do a greater damage. They give an excuse to the studios to continue the DRM policy, to proudly publish "inflated" sale losses, and to lower the overall quality, since most people (those millions that downloaded the latest movie in CAM format) do not give anyway a damn on quality.