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Netflix Streaming Audio Watermark...


Quiet_Hollow

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Spotify is ruined as well unless you go with Fidelify. The newest update disables the option to auto level all the track volumes and it destroys the music dynamics.

 

It's back with the latest update

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I wonder if this is the technology?

 

Cinavia. It is reported to be used for protection of movie from theaters and disc releases on DVD & Blu-ray. It consists of a multi-level watermark that is embedded in the audio track and, while being theoretically transparent(not-audible) for the listener, it is supposed to resist various transformations of the audio stream like re-compression, analog playback&record, re-sampling, pitch shift, etc. The base levels are analog, but on the top level there’s the watermark payload that contains some restrictions regarding the playback environment.



The protection has two elements (one cannot work without the other):

1. The watermark embedded in audio-video content.

2. Cinavia enabled player, that will refuse to play the content if it does not match the restrictions.

Examples:

1. A movie copy made with a camcorder in a theater that contains Cinavia (THEATRICAL_NO_HOME_USE) watermark will stop playing within about 1 minute on a Playstation 3 and display a Message 1.

2. An unprotected (no AACS) Blu-ray backup of “The Losers” (US release) will mute the audio after about 20 minutes with Message 3 (for not coming from a TRUSTED_SOURCE).
 

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