Good audio is critical for any video work - in fact, many creative professionals have noted that more video projects end up unsuccessful due to bad audio than due to any other reason. Traditionally the solution to getting good voiceover audio has been to rent studio time and record in a soundproof booth, however some voiceover artists have been getting creative by making low-cost, portable, mini soundbooths that shield just the microphone. Here are a few links to what's essentially the same concept: a collapsible cube with soundproof foam on 5 of the 6 sides.
- Build a $21 Portable Vocal Booth from O'Reilly Digital Media blog
- DIY Portable Recording Studio from Jake Ludington
- Portabooth info page from Harlan Hogan