**This article relates to AirParrot 1. As of September 2016, support for AirParrot 1 has ended. We encourage you to upgrade to AirParrot 2 for the best compatibility with new devices.**
Certain audio cards sometimes use an audio sample rate that isn't compatible with AirParrot. We're working towards identifying these cards and issuing a fix, but in the meantime we've come up with a fix for the issue.
Open your Windows control panel, and select the "Manage Audio Devices” panel. In this panel, click "Speakers”, select Properties, then select Advanced and choose 16 or 24 bit, 44100Hz.
This should take care of the off-pitch audio you're hearing.