A "spin-doctor" for your aging collection of classic vinyl discs.

It seems that reports of the death of vinyl discs have been somewhat exaggerated. While it is true that new vinyl records are not made in significant numbers any more, there is a thriving second-hand market. In fact many types of record are now hotly collected, including some that were manufactured quite recently.

Interest in vinyl records may still be quite strong, but the drawbacks that resulted in compact discs taking over have not gone away. Noise caused by dust getting into the grooves is one problem, but with proper care and handling this can be minimized

The technique adopted in this project is a straightforward blanking approach. The listener hears what is actually a slightly delayed version of the signal. This minute delay gives the unit time to detect the click before it starts to appear at the output and to replace the click and the signal immediately either side of it is by silence.

Although one might reasonably expect the gap in the signal would be clearly audible, provided the blanking period is no more than about 10 milliseconds it will not be perceived as a gap in the signal.