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By Kevin Bresnahan · Posted
It's technically impossible to get the type of modified analog output that is being described here. It's simply not possible to have frequency shifts and level shifts because of a couple of misread bits. NOT POSSIBLE. -
By Stompin at the Savoy · Posted
I'm sorry but I disagree. I've had noticeable static, muting, skips etc from dirt which were fixed by cleaning. -
By Kevin Bresnahan · Posted
There are 4 levels of error correction at play and even if they all fail, the first nasty correction is interpolation and the next step is muting. Neither of these levels will happen for a "dirty" disc, It would take a major scratch to cause these to kick in. The second level correction (muting) is sometimes audible (likely showing up as skips or pops) but not frequency or level shifts. If the errors are so severe that muting can't be done, the disc skips. This is not true. If the file is so corrupted that it can't be converted to an image, you'll get a partial image, not a changed image. Did you never have a corrupted download of a photo? It's usually looks perfect and then simply chops off where the data is corrupted. In the early days of the Internet, this happened often. -
By Stompin at the Savoy · Posted
If the file of a picture of the statue of L is corrupted, you don't get the Eiffel Tower but you do get a different version of the statue picture. If enough is corrupted you will see degradation of the image. Same is true of audio files. Yeah, it might be the same tune but if there is enough corruption, there will be static and signal degradation. Still more corruption and it becomes unplayable and the playback seizes up. You are thinking it will take jillions of corruptions to affect the sound so it won't really be affected. The problem is some drops of soda allowed to dry on a cd will affect jillions of spots! -
By Kevin Bresnahan · Posted
No - it will sound as it was digitized. Not different at all. If you digitize a photo of a statue of liberty and the file gets corrupted, you don't get a picture of the Eiffel Tower. In order for the analog output to have a different "soundstage", millions of bits would have to change. I'm not exaggerating here. A few seconds of music is 100's of thousands of bits. To change the frequencies and output levels, we're not talking a few bits flipped here & there... we're talking an entirely different sequence of data. It would be a totally different sequence to change the analog output that much.
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