
• SIGNAL PROCESSING
We are only able to make monophonic records
with this process, which actually isn’t as
big of a difference as it might sound when it
comes to vinyl. I use audio editing programs
to mix stereo signals down to mono, equalize
levels, and remove any non-audible parts of
the signal that could cause problems. I also
use this software to apply the all-important
inverse RIAA curve (see sidebar) to the signal
so the records can be played back on any
turntable.I’m also working on building a
mastering circuit to apply the curve in real
time so I can record live sources.
• SPEED AND GROOVE SPACING
Most lathes allow recording at different ...