How Old Are Your Ears? An attempt to reproduce a hearing test, from AsapSCIENCE YouTube channel:
Note: You must watch in 1080p definition and use headphones. The 19,000 Hz frequency is not available due to YouTube compression the file.
Here is another video that illustrates the loss of hearing as a normal part of aging, from National Geographic:
Disclaimer: Do not make conclusions about your health based on online information. Always consult a physician.