Many headphones in the consumer market are currently equipped with an active noise-canceling (ANC) feature. Evaluation of the performance of this feature is not standardized and direct measurement is generally not possible as headphones also naturally provide some amount of passive noise attenuation when worn. Relevant and applicable existing standards are reviewed. Objective performance measures applicable to ANC devices are examined. Measurement methods and data processing techniques are presented. Simple processing of the measured data can reveal the contribution of the passive and active components to the total insertion loss. Examination of the envelope in the time domain can reveal processing artifacts detrimental to speech intelligibility and audio quality. Measurement results are shown for a number of different devices.
Author:
Struck, Christopher J.
Affiliation:
CJS Labs, San Francisco, CA, USA
AES Conference:
2019 AES International Conference on Headphone Technology (August 2019)
Paper Number:
25
Publication Date:
August 21, 2019
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.