-
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
Distortion down to -300 dB, what exactly does that mean physically?
- Thread starter voodooless
- Start date
-
- Tags
- distortion fun
Sarcasm? Then explain why the Bybee Quantum Purifier works so well.
Popular Products at Bybee Technologies
At Bybee Technologies, we have also upgraded various products for audio lovers that require no skill in installation. The popular Quantum Signal Enhancers and iQSE have become some of the most popular products, with thousands of units sold to satisfied customers globally. Explore all our products.
bybeetech.com
DUDE you broke my sarcasm meter. It turned blue and exploded! The arc across the terminals afterwards was epic.Sarcasm? Then explain why the Bybee Quantum Purifier works so well.
Popular Products at Bybee Technologies
At Bybee Technologies, we have also upgraded various products for audio lovers that require no skill in installation. The popular Quantum Signal Enhancers and iQSE have become some of the most popular products, with thousands of units sold to satisfied customers globally. Explore all our products.
Ok. 1 atmosphere pressure wave is 194dB SPL.
Ok. Noise floor of atmosphere at the eardrum, broadband white noise, is 6 dB to 8 dB SPL. If you look at the sensitivity of the ear at the ear canal where the ear is most sensitive, you can hear down to about -10dB SPL in that range of hearing.
Note: That's (*&(& quiet and there is currently no place on earth except maybe a few caves deep underground that are that quiet. Outside, wind is always higher. Under anyplace airplanes fly, fergitaboutit.
194dB pressure wave destroys your hearing, your house, your windows, your trees, and most likely YOU.
So -300dB, well, it's below particulate noise at the eardrum, even using best case perfect hearing for a young person with no noise exposure whatsover, is about 290dB below the noise level of the atmosphere.
Draw your own conclusions.
Ok. Noise floor of atmosphere at the eardrum, broadband white noise, is 6 dB to 8 dB SPL. If you look at the sensitivity of the ear at the ear canal where the ear is most sensitive, you can hear down to about -10dB SPL in that range of hearing.
Note: That's (*&(& quiet and there is currently no place on earth except maybe a few caves deep underground that are that quiet. Outside, wind is always higher. Under anyplace airplanes fly, fergitaboutit.
194dB pressure wave destroys your hearing, your house, your windows, your trees, and most likely YOU.
So -300dB, well, it's below particulate noise at the eardrum, even using best case perfect hearing for a young person with no noise exposure whatsover, is about 290dB below the noise level of the atmosphere.
Draw your own conclusions.
For some silliness in this area see:
www.audiosciencereview.com
When I go to the little airport prior to getting a tow in my glider, the Sky Divers next door often are already active.
It's surprising (to me) how well you can hear them while they are still a couple of thousand feet (or more) above.
The Shoutometer
We've all seen the Sound Pressure Level decibel reference tables where you have "quiet room", "chainsaw", "jet engine" and so on. While that is handy for estimating increased loudness in decibles, it didn't help me when thinking about the measurement levels obtained around here when measuring...
www.audiosciencereview.com
When I go to the little airport prior to getting a tow in my glider, the Sky Divers next door often are already active.
It's surprising (to me) how well you can hear them while they are still a couple of thousand feet (or more) above.
Last edited:
Straight path with no diffusion or occlusion.For some silliness in this area see:
The Shoutometer
We've all seen the Sound Pressure Level decibel reference tables where you have "quiet room", "chainsaw", "jet engine" and so on. While that is handy for estimating increased loudness in decibles, it didn't help me when thinking about the measurement levels obtained around here when measuring...
When I go to the little airport prior to getting a tow in my glider, the Sky Divers next door often are already active.
It's surprising (to me) how well you can hear them while they are still a couple of thousand feet (or more) above.
Just typing that I had to hold back puking on my keyboard. So, it was a HUGE dose of sarcasm. The named companies deserve their in the gutter reputation too!
Similar threads
