Showing posts with label Elisabeth McMullin. Show all posts
Showing posts with label Elisabeth McMullin. Show all posts

Wednesday, October 22, 2014

The Influence of Listeners' Experience, Age and Culture on Headphone Sound Quality Preferences

At the recent 137th convention of the Audio Engineering Society we presented our latest research paper entitled, "The Influence of Listeners' Experience, Age and Culture on Headphone Sound Quality Preferences."

The paper describes some double-blind  headphone listening tests conducted in four different countries (Canada, USA, China and Germany) involving 238 listeners of different ages, gender and listening experiences. Listeners gave comparative preference ratings for three popular headphones and a new reference headphone that were virtually presented through a common replicator headphone equalized to match their measured frequency responses. In this way, biases related to headphone brand, price, visual appearance and comfort were removed from listeners’ judgment of sound quality. On average, listeners preferred the reference headphone that was based on the in-room frequency response of an accurate loudspeaker calibrated in a reference listening room. This was generally true regardless of the listener’s experience, age, gender and culture. This new evidence suggests a headphone standard based on this new target response would satisfy the tastes of most listeners. 

The paper is available for download from the AES e-library. You can also find a PDF of our presentation here or view the presentation on YouTube.



Wednesday, June 11, 2014

My Article on Headphone Sound Quality in 2014 LIS

The 2014 Loudspeaker Industry Sourcebook came out this week. In it, you can find an article I wrote called "Perceiving and Measuring Headphone Sound Quality: Do Listeners Agree on What Makes a Headphone Sound Good?"

The article is a summary of some recent published research we've conducted at Harman on the perception and measurement of headphone sound quality.

Together, these studies provide scientific evidence that when headphone brand, price, fashion, and celebrity endorsement are removed subjective evaluations, listeners generally agree on what makes a headphone sound good.

So far, this has been true regardless of users' listening training, age, or culture.  The more preferred headphones tend to have a smooth, extended frequency response that approximates an accurate loudspeaker's in-room response. This new target frequency response could provide the basis for a new and improved headphone target response. You can find more details on the research here.

Monday, July 1, 2013

Harman Researchers Make Important Headway in Understanding Headphone Response

Todd Welti, Sean Olive and Elisabeth McMullin are shown above with their custom binaural mannequin, "Sidney" wearing a pair of AKG K1000's. No fit or leakage issues with these headphones.
Tyll Hertsens, Chief Editor at Innerfidelity recently visited our research labs in Northridge, and wrote a nice story in his blog about our headphone research and visit to Harman. You can read the entire story here.

In his story, Tyll summarizes three of our recent AES papers on headphones, the first one of which I already wrote about in this blog. I hope to write summaries of the other two papers in the upcoming weeks when I can find some free time.