Preferred Listening Response Curve

Research indicates that listeners across all age groups and hearing abilities prefer extended treble response beyond 10 kHz, resulting in a richer and more satisfying listening experience.

Knowles Tunes into Consumer Feedback to Unveil Optimal Earphone Music Listening

The Knowles Preferred Listening Response Curve is a target tuning profile for earphones that reflects consumer listening preferences by emphasizing high-frequency (treble) response—especially above 10 kHz—to deliver a more detailed and satisfying audio experience.

Key Highlights:

  • Consumer-driver tuning: based on analysis of popular music and double‑blind listening tests to reflect real listener preferences.
  • Treble-focused: boosts frequencies above 10 kHz for better detail.
  • Hi‑res audio optimized: enhances high-resolution audio playback.
  • Better experience: earphones tuned to this response curve are expected to deliver higher overall user satisfaction.
  • Supports personalization: It acknowledges that one curve doesn’t fit all listeners, encouraging adjustment based on individual hearing preferences.

The Method*

Knowles began by analyzing 200 Billboard Hot 100 songs to determine the treble content of popular music, then performed double-blind listening tests on a range of consumers to evaluate their preferred treble response when listening to that music.

The Findings

Knowles’ study revealed that treble response beyond 10 kHz is essential for delivering the best and most satisfying music listening experience.

READ THE RESULTS The Conclusion

The Conclusion

Designing and tuning an earphone that matches the high frequency response of the Knowles Preferred Listening Response Curve is expected to consistently provide a highly satisfactory end user experience.

READ THE RESULTS
* Knowles acknowledges that Harman provided valuable assistance to Knowles with testing and data collection, but Harman has not endorsed or validated any of the results reported by Knowles.

Balanced Armatures

Balanced Armatures for a Superior Audio Experience

Knowles’ Balanced Armatures excel at delivering frequencies above 10kHz for hi-res music and high frequency boost for hearing personalization.

Key Highlights:

  • Improved fidelity, realism and detail over traditional dynamic drivers
  • Frequency response
  • Small and lightweight - enabling compact form factors
  • Power savings = greater output with less power
  • Superior audio
  • Hearing personalization

Personalized Listening, Powered by Knowles

Not all listeners share the same ideal response, making personalization key—powered by the Knowles Preferred Listening Response Curve and Balanced Armatures.

 

READ THE PREFERRED LISTENING RESPONSE WHITEPAPER

Preferred Response White Paper Cover

Educational Resources

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