Powerful, reasonably-priced alternatives to dedicated audio measurement hardware.
While wandering the aisles of the recent Audio Engineering Society show in San Francisco, I found a great little measurement rig for the iPhone, iPad, and iPod touch that deserved inclusion in my recent article on DIY audio measurement in the January 2011 issue of S+V [on stands now]. Unfortunately, the article had already gone to press, so I thought I'd report on the system here.