I'd really like to know of any good studies, or posts about the impact that an auto-playing video has on a home or landing page.
Impact being a change in conversion rate, bounce rate, time on site, etc....something measurable
I've found a few articles about how video on a homepage has increased conversions (such as the dropbox case study), but it didn't answer whether it'd be better to have it auto-play or not.
I am looking for studies or posts with data, not an individual's (or company's) opinion