Cool_Torpedo
1000+ Head-Fier
Quote:
And you're completely right, as it's been said along several posts, if we just look at electronics:
Double voltage (and double amplitude): +6dB
Double power: +3dB
When converting a signal into SPL by a speaker or HP:
Double pressure (Pascals or DaPa): +6dB
Regarding human hearing... since not all we hear the same, it's needed to look at statistics and the results of tests carried on a population, considering age, health status, etc.
Hearing double louder: +10dB
The lack of lineality is what makes us being more sensitive at 3.5KHz and way more insensitive at low frequencies and higher ones. You need different increases of SPL at different frequencies to have them heard and also to produce the sensation that you're listening louder and of course double louder. That is expressed in the Fletcher-Munson curves, which you can see in the Wiki article on Phon I mentioned in a earlier post.
Regards.
Originally Posted by antonyfirst /img/forum/go_quote.gif I'm saying that in Electronics +6dB is double amplitude, so here 6dB is double voltage. But you bring out an interesting topic about non linearity of hearing. Can you tell me more? |
And you're completely right, as it's been said along several posts, if we just look at electronics:
Double voltage (and double amplitude): +6dB
Double power: +3dB
When converting a signal into SPL by a speaker or HP:
Double pressure (Pascals or DaPa): +6dB
Regarding human hearing... since not all we hear the same, it's needed to look at statistics and the results of tests carried on a population, considering age, health status, etc.
Hearing double louder: +10dB
The lack of lineality is what makes us being more sensitive at 3.5KHz and way more insensitive at low frequencies and higher ones. You need different increases of SPL at different frequencies to have them heard and also to produce the sensation that you're listening louder and of course double louder. That is expressed in the Fletcher-Munson curves, which you can see in the Wiki article on Phon I mentioned in a earlier post.
Regards.