Originally Posted by ch9862

Exactly. I seriously doubt anyone would go to the trouble of recording all the possible sounds every kind of spoke makes under various tension levels...

What I did when building my first wheel, was keep tightening spokes while maintaining wheel true in both directions. When spokes were making sound vaguely similar to the one my existing wheel did, and seemed to be similarly hard to squeeze, I took it to the bike shop. Mechanic there looked it over and said he'd recommend one more turn per nipple.

HTH