What is Audio Restoration?
Audio restoration could be simply
put as the removal of unwanted noises from vintage recordings,
but of course things are never that simple and there are various
pieces of equipment and processess that go into a successful
restoration job along with the engineers skill and expertise.
No restoration job is the same and each will require slightly
different applications of our skills. A typical vinyl restoration
/ re-master would include: transfer from vinyl to hard disc
(A/D conversion), de-click, de-crackle (if needed), re-mastering
and, if required, extensive editing to fix further clicks,
pops, mains hum, drop outs, hiss etc. The aim of our restoration
approach is to remove or greatly reduce unwanted noises from
recordings without sacrificing the original sound. It is possible
to go over the top with processes such as de-click and introduce
distortion, or de-noise and introduce strange high frequency
artifacts. At SRT we feel it's always preferable to leave
a small amount of hiss in rather than damage what's left.
It is not always the best option to use a processor to remove
noises and sometimes an engineer will use EQ or manual editing
to get the best result, a decision made based on years of
experience in this area.