- Joined
- 13 Feb 2002
- Messages
- 854
dreamliner77 said:Mafia: Most normal humans are usually only sensitive to the upper 15khz to lower 16 kHz range. Some people can hear slightly higher. Only newborns really hear up to 20+ kHz. Hearing range decreases with age.
You can test your hearing with this sample: http://ff123.net/samples/sweep.zip
Use this page as reference: http://ff123.net/sweep.html
*Note* this sample can only be used if you have a sound card that does not resample (that leaves you Sound Blaster users SOL)
To all: Don't confuse Sound Pressure Level (dB) with Sensitivity/signal to noise rating. Even though they both use dB as a unit of measure, they are two totally different measurements. When refering to a sound card the dB number refers to signal to noise. The chances of actually hearing the difference between a 91dB s/n and 100dB s/n is slim. Almost all pc speaker amplifiers and/or electrical interference inside the pc will add more noise than this slight difference would make audible.
Interesting sample. I heard the entire range, actually, and could have gone higher probably. Of course, it could mean that my sound card messed things up, but I should also mention that I'm not a lot of fun at concerts, because I can't stand all the noise I hear, and, thus, wear earplugs...lol. Also, after six years of production work, I've been adjusted to pick up the most minute things in audio and in video.
But this noise I hear, mentioned on that link--"I used to be able to hear the 19kHz hum of the high-voltage switching power supplies in TV's"--I still hear it, and boy...is it annoying.
Melon