In my entry yesterday, I suggested that reader Elizabeth Kimball use iMovie, GarageBand, or HairerSoft's Amadeus II to record audio on her laptop. A few readers pitched in with suggestions for other applications Elizabeth might use.
The most popular recommendation was Audacity, a free, open-source, multi-track audio editor. With the addition of the Audacity VST Enabler, you can use VST effects plug-ins with the program. Good idea.
Second on the list is Felt Tip Software's Sound Studio. The download version of Sound Studio costs $50, but Apple bundles a copy with iBooks. If Elizabeth already has a copy, this is a noble recommendation.
Speaking of applications you may already own, Roxio's $80 Toast Titanium includes CD Spin Doctor 2, a program that is not only useful for converting LPs and audio cassettes to digital files, it can also record audio through a Mac's microphone. If you have a copy, give it a whirl, Liz.