But while these testing protocols are intended to be at least somewhat analogous to real-world conditions, they don’t always reflect the demands of actual day-to-day use.” So it’s a good idea to add other tests with conditions more like what you’d experience while actually using the audio device, even if those methods don’t fit within standard lab-testing protocols.įor all of these measurements, we attached the headphones to the same GRAS 43AG ear and cheek simulator we use for our active-noise-cancellation testing and frequency response measurements. Audio researchers use pink noise because they need repeatable testing protocols for manufacturers and other researchers to easily replicate.
As Brent put it, “The reason for the L eq test is to add a real-world check. L eq is a commonly used gauge of sound exposure over time to oversimplify a bit, it’s sort of like the average volume. To do that, we played “Cold Water” by Major Lazer (video) through all the headphones and measured the A-weighted L eq ( equivalent continuous sound level).
We also wanted to add a more real-world evaluation of how loud these headphones could get. Although pink noise loosely simulates the content of music, it’s still just a simulation, one that serves to make measurements easier and more repeatable.
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