Here’s how your ears compare to our new enhanced Perceptual Rub & Buzz. We’ve also included the traditional normalized Rub & Buzz measurements for each speaker. Do your ears agree with ePRB? Disagree? Tell us on LinkedIn!
Speaker 1
ePRB heard: Sounds Good.
This is a perfect speaker with no audible distortion.
Speaker 2
ePRB heard: Badly Distorted.
There is a conspicuous buzzing sound that makes this speaker sound louder.
Speaker 3
ePRB heard: Borderline Distortion or Some distortion
Both are correct as this speaker has a low level of distortion and your response is subjective. If you are an inexperienced listener, you may even have rated this as ‘not sure’ – if you can discern something just sounds a little ‘off’. Well done if you could detect the distortion on this speaker – many people can’t! Using this algorithm in real life, you would set the detection threshold at whatever phon level you want to correlate with desired audibility.
ePRB measurement for Speaker 1
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You can see here that the maximum perceptual distortion is about 10 Phons. We consider this to be about the threshold of detection for a trained listener
ePRB measurement for Speaker 2
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You can see here that the maximum perceptual distortion is over 40 Phons. This level of distortion is audible by most people.
ePRB measurement for Speaker 3
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You can see here that the maximum perceptual distortion is about 14 Phons. This is slightly above the threshold of perception, and we would expect that a trained listener may be able to detect this, but an untrained person likely would not.
Normalized Rub & Buzz distortion measurement for speaker 1
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This graph shows the traditional normalized Rub & Buzz distortion for the same speaker. You can see that it is low across the spectrum.
Normalized Rub & Buzz distortion measurement for speaker 2
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This graph shows the traditional normalized Rub & Buzz distortion for the same speaker. Significant Rub & Buzz is detected throughout the spectrum, particularly in the 1-5kHz range.
Normalized Rub & Buzz distortion measurement for speaker 3
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This graph shows the traditional normalized Rub & Buzz distortion for the same speaker. You can see that although there is some distortion, it is about half that of the speaker to the left in the 1-5KHz range.
Need Another Listen?
Reference Speaker
Speaker 1
Speaker 2
Speaker 3
SHARE YOUR RESULTS
How did your ears compare to enhanced Perceptual Rub & Buzz? Let us know how you did on LinkedIn.