Noisy vinyl from Classic Records


I love Classic Records reissues with their heavy vinyl etc. But the last 2 I purchased-both from Norah Jones on 200 gram vinyl-have occasional noise in the left channel only. It sounds like splashing and happens for only a second or so, and happens a few times on 1 side only. It doesnot happen on the other sides or my other records. The needle is clean and so is the record. I think it might be damaged. I havent returned it or complained. Any thoughts or similar problems? Thanks.
tbromgard
In their time LP recordings were amazing technology. They yield excellent sound, but with some degree of surface noise. The surface noise is an inherent characteristic of the technology, sliding contact between two physical objects. It can be minimized but never completely eliminated. Minimizing surface noise requires very sophisticated procedures, machines, and materials during manufacture.

Similar difficulties exist in the manufacture of CDs, which are pressed in a manner similar to LPs. However, there is a critical difference. The information on the CD is processed using an error correcting code so that defects in the physical disc do not result in any error on playback.

A comparison of these two media is a good example of two engineering approaches to quality. One, the LP, relies on superb specs on the physical item. This is costly, and can never be perfect. The other, CDs, recognizes that physical defects will exist, and designs a system in which physical defects (up to some point) don't matter.

In my profession (engineering missile guidance systems) I saw the philosophy change over several decades. When I started our guidance systems had many selected value trim resistors and a few trim pots that were individually tweeked during tests. We tried to be perfect. Now we have few if any selected value resistors, and no trim pots. Circuit designers have learned to make circuits that do not rely on exact component values. This may result in a more complex circuit, but since you can have thousands of transistors on a tiny chip, it's a good trade off.
I would take the album back to the store for a return or an exchange (whichever they offer). It is quite probable that there is something wrong with the vinyl.
I find all of Norah Jones's recordings (not many) sound like muffled garbage, its a shame. Her Digital recordings are much better.

Matt M
I hope that the phenomenon I have heard is the same as the OP. I believe it is a pressing problem and I also believe back in the 80's I saw it referred to in the Absolute Sound as stitching. A sometimes loud brief burst of distortion, usually confined to a single channel.
I hope that the phenomenon I have heard is the same as the OP. I believe it is a pressing problem and I also believe back in the 80's I saw it referred to in the Absolute Sound as stitching. A sometimes loud brief burst of distortion, usually confined to a single channel.