Natural channel separation (NCS) refers to the level of acoustic isolation which exists naturally between the ears for a single sound source. To the authors’ knowledge, no systematic study has been undertaken to identify source positions which can produce the required level of NCS for binaural reproduction to be achieved without using crosstalk cancellation. The transfer functions of 655,214 loudspeaker positions were simulated using the boundary element method and the NCS calculated for each. For loudspeaker positions under 0.5 m from the head there is a clear inverse relationship between NCS and distance. Close to the head, many positions exceed the 20 dB NCS required. Results suggest that near-field binaural reproduction may be implemented without crosstalk cancellation, subject to further perceptual testing.
Authors:
Young, Kat; Kearney, Gavin; Tew, Anthony I.
Affiliation:
University of York, York, UK
AES Conference:
2018 AES International Conference on Spatial Reproduction - Aesthetics and Science (July 2018)
Paper Number:
EB1-9
Publication Date:
July 30, 2018
Session Subject:
natural channel separation; binaural; computational simulation; boundary element method; head-related transfer function
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.