Does listening to 30,000 Hz damage your ears?

Frequency doesn't affect you. It is the intensity that matters. Let me explain this using the example of light and its Frequency spectrum. Let it be Light or Sound Frequency changes their properties. For example, as the frequency of light changes their colours change from Blue to Red. Their are other Lights too. read more

Similarly, listening to high Frequency sound doesn't do any damage. But high intensity sound with high or low Frequency will damage your ears. When you turn up the volume it is the intensity that increases. read more

Some people can hear up to about 22 KHz. The standard range used for speaker design is 20 Hz to 20 KHz. Most people can hear up to about 16–18 KHz as children, and as others have stated it goes down with age and prolonged exposure to loud sounds. read more

Sound is an oscillating wave, but it has a broad range of frequencies. A low frequency sound (say, 50 hz) might sound like a low rumble, while a high frequency sound (say 12,000 hz), might sound more like a "sizzle". A person with normal hearing can hear all the way up to about 20,000 hz. read more