mugen1

Just curious how error correction affects sound quality. I have some pretty scratched up CD's. They skip like crazy on my CD player at home and in car. However, when I stick the CD into my laptop and convert it to iTunes file (AIFF, MP3, etc.), it works fine. I'm assuming that missing data is somehow filled in - read about this eons ago when CD's first came out. I'm happy the music doesn't skip anymore. I can now upload the files into my iPod and even burn CD's at full 1411 kbps.

I am now spending the remainder of my holidays backing up all my CD's.

Gold MFSL CD's - I have a few of them. Data is data, so the only thing I would lose out on is the better reflective quality of gold, correct?

Better reading of data = less error correction = better sound. Or is this BS that industry is pushing on consumers......


Sorry for the ramble / random thoughts...... my writing style.

Eli47

Error correction is the reason many machines will sound different.
The more error correction applied, the more it deviates from the original recorded sound.
The whole idea is to read the signal once, and do it right. That is where a good transport and laser come to play.
Machines that "oversample" simply read the same mistake several times over, guess what?? it's still a mistake.

hobbes26

Oversampling serves to reduce quantization errors, and doesn't "simply read the same mistake several times over" at all. It s the quantization noise over a wider bandwidth and you can then filter out the bandwidth you want to effectively get lower quantization noise. This occurs before the D/A stage, but not at the CD reading stage.

Error correction is performed at MANY stages along the way from being read at the CD to being converted to an analog or digital output signal from the CD player.

[ January 04, 2005, 01:03 PM: Message edited by: hobbes26 ]