This paper in an update of the *SpHEAR (Spherical Harmonics Ear) project, created with the goal of using low cost 3D printers to fabricate Ambisonics microphones. The initial four-capsule prototypes reported in 2016 [1] have evolved into a family of full-featured high quality microphones that include the traditional tetrahedral design and a more advanced eight capsule microphone [2] that can capture second-order sound?elds. The project includes all mechanical 3D models and electrical designs, as well as all the procedures and software needed to calibrate the microphones for best performance. A fully-automated robotic arm measurement rig is also described. Everything in the project is shared through GPL [3]/CC [4] licenses, uses Free Software components, and is available on a public GIT repository (https://cm-gitlab.stanford.edu/ambisonics/SpHEAR/).

Author: Lopez-Lezcano, Fernando
Affiliation: CCRMA, Stanford University, Stanford, CA, USA
AES Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality (August 2018)
Paper Number: P5-1
Publication Date: August 11, 2018

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.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

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.