Princeton University  

Biography of Joseph G. Tylka


Joseph (Joe) G. Tylka is an Assistant in Research at the 3D Audio and Applied Acoustics (3D3A) Laboratory and a graduate student in the Department of Mechanical and Aerospace Engineering at Princeton University. He received his B.S. in physics from the University of Maryland, College Park, where he graduated cum laude with a minor in philosophy in May 2012. He subsequently received his M.A. in mechanical and aerospace engineering from Princeton University with a concentration in acoustics and signal processing in September 2014. Joe has been a musician for almost his whole life and has had an interest in music technology and audio engineering for many years. He is currently pursuing his Ph.D. and conducting his dissertation research on navigation and binaural rendering of recorded 3D soundfields. His research interests include 3D audio, psychoacoustics, and audio signal processing.

Click here to visit Joe's personal webpage on the Princeton University domain.

Joe may be contacted via his Princeton University email address.


Projects


  1. Navigation of Higher-Order Ambisonics Recordings
  2. Conducted objective comparisons of three techniques for soundfield navigation. Developed a method for soundfield interpolation within an array of two or more ambisonics microphones. Developed and validated auditory models of perceived source localization and spectral coloration for the purpose of evaluating and comparing navigational techniques.

  3. Binaural Rendering of Recorded 3D Soundfields
  4. Developed an open-source MATLAB toolkit for generating custom binaural rendering configurations for the ambiX binaural plug-in.

  5. Loudspeaker Directivity: An Ongoing Experimental Survey
  6. Developed the data processing algorithms used to generate loudspeaker directivity data. Measured and assembled the database of loudspeaker polar radiation data. Proposed metrics for directivity and constant-directivity by which the directivities of different loudspeakers may be compared.

  7. Log-Symmetric Fractional-Octave Smoothing
  8. Developed a modified fractional-octave smoothing method that, for spectra that are originally symmetric in log-frequency, preserves said symmetry after smoothing.

  9. Head-Related Transfer Function Measurements
  10. Designed and constructed the circular arc used to mount the measurement loudspeakers. Developed the data capture and processing algorithms used to obtain the measured head-related transfer functions (HRTFs). Measured and assembled the database of HRTFs.

  11. Low-Noise Impulse Response Measurements
  12. Proposed an iterative measurement procedure to obtain impulse responses with reduced noise contamination and limited processing artifacts. Demonstrated experimentally that the procedure achieves superior results compared to conventional techniques in terms of measured SNR and peak pre-response amplitude.


Publications:

R. Sridhar, J. G. Tylka, and E. Y. Choueiri. A database of head-related transfer function and morphological measurements. In Audio Engineering Society Convention 143, October 2017.

J. G. Tylka and E. Y. Choueiri. A Toolkit for Customizing the ambiX Ambisonics-to-Binaural Renderer. In Audio Engineering Society Convention 143, October 2017.

J. G. Tylka and E. Y. Choueiri. Models for evaluating navigational techniques for higher-order ambisonics. Proceedings of Meetings on Acoustics, June 2017 (submitted). (slides)

J. G. Tylka, B. B. Boren, and E. Y. Choueiri. A Generalized Method for Fractional-Octave Smoothing of Transfer Functions that Preserves Log-Frequency Symmetry. J. Audio Eng. Soc., 65(3):239-245, 2017.

J. G. Tylka and E. Y. Choueiri. Soundfield Navigation using an Array of Higher-Order Ambisonics Microphones. In Audio Engineering Society Conference: 2016 International Conference: Audio for Virtual and Augmented Reality, September 2016. (slides)

R. Sridhar, J. G. Tylka, and E. Y. Choueiri. Metrics for Constant Directivity. In Audio Engineering Society Convention 140, May 2016. (poster)

J. G. Tylka and E. Y. Choueiri. Comparison of Techniques for Binaural Navigation of Higher-Order Ambisonic Soundfields. In Audio Engineering Society Convention 139, October 2015. (pdf, poster)

J. G. Tylka, R. Sridhar, and E. Y. Choueiri. A Database of Loudspeaker Polar Radiation Measurements. In Audio Engineering Society Convention 139, October 2015. (pdf, poster)

J. G. Tylka and E. Y. Choueiri. On the Calculation of Full and Partial Directivity Indices. Technical report, 3D Audio and Applied Acoustics Laboratory, Princeton University, November 2014. (pdf)

J. G. Tylka, R. Sridhar, B. B. Boren, and E. Y. Choueiri. A New Approach to Impulse Response Measurements at High Sampling Rates. In Audio Engineering Society Convention 137, October 2014. (pdf, slides)

Joseph Tylka