The most common cause of BirdsEye not playing sounds it because the mute button is on or the volume is turned all the way down. It sounds simple, but it can actually be confusing because some apps, such as iTunes, do not "obey" the mute button. As a result, it may seem like your sound is working for other apps but not for BirdsEye. Still, the mute button (or volume control) is the key to solving this problem.
Here's what to do: the mute button on the iPhone/iPad Touch is located on the upper left side of the iPhone. If you can seen orange, then the mute is turned on (and you won't hear sound from BirdsEye!). Flip the switch so that you can no longer see orange.
On the iPad, iPhone and iPod Touch there is a volume control. It's a toggle switch... hit the lower half and the sound gets quieter until it is totally turned off. Hit the upper half and the volume increases. If the sound is turned all the way down then you will not hear any sound from BirdsEye.
If you confirm that your sound is not muted by the mute button, and still are having problems with BirdsEye sound, please let us know. We'll work with you figure out what is happening and how to fix it.