This paper covers the construction and validation of an affordable and accurate two degree-of-freedom rotational mount for making HRTF (head-related transfer function) and BRIR (binaural room impulse response) measurements using a dummy head microphone. We review the design requirements for a rotational mount in the context of measurements for binaural rendering, with reference to perceptual factors. In order to achieve a low-cost solution, we evaluate the suitability of a motorized telescope mount. Issues considered during design of the system are discussed. The use of affordable electronics to convert the mount into a general-purpose computer-controlled rotational platform is presented, as well as objective measurements to validate performance. Finally the limitations of this system are discussed and further use cases proposed.
(See document for exact affiliation information.)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
