scompton
Headphoneus Supremus
- Joined
- Jan 21, 2005
- Posts
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Here's a link to the page that describes how they test, and a quote from the isolation section.
Learning Center - About Headphone Measurements | HeadRoom Audio
Quote:
The Head Room isolation graphs are a very good tool if you're considering one of the in ears that they sell.
Learning Center - About Headphone Measurements | HeadRoom Audio
Quote:
Even open headphones cut out a moderate amount of noise above 3kHz. Most sealed headphones will provide significant amounts of attenuation down to a few hundred Hertz. Noise-canceling headphones will sometimes extend this attenuation down just below 100Hz. In-ear headphones (like the Shure and Etymotic products) have the best isolation by far; this is important for the air traveler to know: Etymotic and Shure headphones will provide far better isolation than noise canceling headphones with significantly superior audio performance! |
The Head Room isolation graphs are a very good tool if you're considering one of the in ears that they sell.