I saw this article on Digital Pro Sound a few weeks ago and I've been meaning to blog about it ever since. Harlan Hogan describes how to create a "porta-booth" to help reduce some of the "boomy-ness" that's typical of recording in random offices and hotel rooms. The basic idea is to create a little box with foam that you can place your microphone in that reduces the echoes it picks up.

Harlan goes on and recommends some specific materials that allow for a "on the go" box that's collapsable and reports good results. Has anyone tried this technique? It certainly seems like it could be a good middle ground for quick voice tracks when a better studio isn't possible. I might have to build one myself that I can keep in my office!