To help people choose the most suitable track for headphone evaluation, Sean Olive, a researcher in sound and acoustics at Harman, JBL's parent company, shared the name for everyone to refer to.
Fast Car is a recommended song to listen to to evaluate whether headphones are good or bad.
According to Sean Olive, Tracy Chapman's Fast Car is the best track to test headphones on. "When it was released in 1988, we found it to be well recorded and seemed to have all the audible frequencies from 20 Hz to 20 kHz," Olive explains. It is known that 20 Hz - 20 kHz is the audible range of a good, powerful pair of headphones. When we talk about bass, we are talking about 20 - 250 Hz. When we talk about midrange, we are talking about 250 Hz to 2 kHz. And when we talk about treble, 2 - 20 kHz is the frequency range of choice. Below 20 Hz is infrasound and above 20 kHz is ultrasound. None of us can hear them.
Being such a well-written song, JBL began using it to test its speakers and in its research to create good headphones. According to Olive, thanks to this track, researchers can differentiate between different speakers and can detect any flaws, such as too much bass, to produce consistent results.
The first thing to look for is bass, Olive explains. Fast Car has an electric bass and a kick drum. “If the speaker is having trouble reproducing bass, it will essentially maximize the distance of the woofer and then start to tune out the voice,” he says. Many speakers and headphones have too much bass, which can mask the voice. What we want to make sure is that there is an overall balance between the voice, bass, drums, and guitar.
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