This is a dataset of head-related transfer functions (HRTFs) derived from 105 subjects (210 ears). The number of source directions per subject ear is 865; HRTFs were measured at 5 degrees intervals in azimuth and at 10 degrees intervals in elevation – 30 to 90 degrees in spherical coordinate. A subset containing the anthropometric data of 39 subjects is also available. These data are freely downloaded for non-profit academic purposes. Additional information is given in "Measurement".


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  • HRTF Data..........Download file of HRTF data and anthropometric data
  • Measurement......Outline of the measurement of the HRTF data

Copyrights of dataset

Copyright © 2013 by Advanced Acoustic Information Systems Laboratory, Research Institute of Electrical Communication, Tohoku University. All rights reserved.

These data are provided free with no restrictions on use in research, academic and educational activities under the following two conditions.

  1. Users are to cite this web-page ( and the following paper:

    K. Watanabe, Y. Iwaya, Y. Suzuki, S. Takane, and S. Sato, "Dataset of head-related transfer functions measured with a circular loudspeaker array," Acoust. Sci. & Tech. 35(3), 159 – 165(2014)

  2. These data may not be open to others after any modifications in any way are applied, even if they appear with necessary citations.

N.B. Commercial use of this data is prohibited without our prior permission.