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Technology Stocks : The *NEW* Frank Coluccio Technology Forum

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To: Frank A. Coluccio who wrote (46011)8/15/2017 6:11:01 PM
From: ftth  Read Replies (1) of 46129
 
from the article, "Vinyl is what’s called a lossless format. Nothing has been lost when pressing a record. It sounds as good as the producer or band intended."


Well, it's been a while but I don't think that's quite true. The input to cutting the master is severely filtered and limited per the RIAA equalization. If that weren't done, the size of the grooves for lower frequency notes would be huge, and you could only fit a few minutes of music on a 12" LP if you want to avoid cut-through in adjacent grooves. The phono preamp that the turntable is connected to implements the inverse of the RIAA equalization so that, in theory, there is no loss on playback.


The problem is imperfect (and even different) implementations of the pre- and post equalization. So there are definitely losses, just in a different form. For fairly old records (I don't recall exactly, but maybe mid-1960's and before) there was proprietary 1-way equalization done,


Not to mention that some old vinyl (and new vinyl as well) was horribly produced with clipping and distortion, which are unrecoverable losses.


re: quantization errors, see Sony's DSD (direct stream digital) format. It was used for SA-CDs and still used by some. But the market didn't care enough, since 256 kbps MP3 sounds just as good to most people, especially if listening to music in a car or on a portable device.
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