That s the reason why it s not really that practical for vinyl playback.
Optical vinyl pickup.
The audio technica at lp120 usb is a great introductory turntable for any budding vinyl enthusiast with an easy setup that won t take all the fun out of spinning your records.
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A laser turntable or optical turntable is a phonograph that plays standard lp records and other gramophone records using laser beams as the pickup instead of using a stylus as in conventional turntables although these turntables use laser pickups the same as compact disc players it s important to note the signal remains in the analog realm and is never digitized.
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First we will explain the difference of detection principle between the optical cartridge and mm mc cartridge.
Unlike a traditional stylus the laser turntable achieves the highest fidelity from vinyl records with no wear on your precious collection.
While the optical tracking of the groove is not able to do so and tracks every little grain of dust too.
There is a vast interest in vinyl lps these days and i m sure that if a company such as sony or technics brought one into the marketplace it would do well.
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Arnold layne mar 25 2013 21.
Both the mm mc cartridge and the optical cartridge read the record groove through the needle but the usual mm mc cartridge detects the music signal by vibrating the magnet or coil in the magnetic field.
From what i have read a needle is able to push or brush a little dust away and tracks mostly only the groove modulation.
There s another company working on a fiber optic pick up that will work on any turntable.