Audazzio

Audazzio from Sports Sonar Inc computes and displays the high-frequency SPL audio level in deciBells (dB). Audiologists believe that excessive exposure to high-SPL high frequency sounds can be damaging to human hearing, even though it may not be noticeable in the room. Audazzio also has the ability to show second-screen content upon receiving special audio signaling embedded in video.

When background operation is enabled, if the app detects audio signaling, a notification will appear on the screen which can be tapped to display second-screen content.