Matthias Wandel of woodgears.ca does a great job analyzing bandsaw blade squeal in this video found on youtube. If you are wondering why your band saw is making that noise, this video will show you and help you decide what type of blade can help prevent the noise.
Analyzing Bandsaw Blade Squeal
He certainly put a lot of time and effort into preparing for the video. I loved the model blade he made and learned much from his video analyzing bandsaw blade squeal.
If you would like to learn more about band saw blade squeal or how to tune your band saw for better operation check out The Bandsaw Book by Lonnie Bird. I have it and find it a great reference whenever I have a question about all things bandsaw!