Apel, T. (2023). Incidental Speakers. In CEC | Canadian Electroacoustic Community. https://econtact.ca/21_2/apel_incidentalspeakers.html

Apel, T., & Johnson, J. B. (2021). Portable Real-Time Volcano Infrasound Auditory Display Devices. International Conference on Auditory Display (ICAD 2021) , pp. 131–134.

Apel, T. (2014). Sinusoidality Analysis and Noise Synthesis in Phase Vocoder Based Time-Stretching. Proceedings of the Australasian Computer Music Conference, pp. 7–12.

Apel, T. (2008). Feature Preservation and Negated Music in a Phase Vocoder Sound Representation [PhD thesis]. University of California, San Diego.

Dubnov, S., & Apel, T. (2004). Audio Segmentation by Singular Value Clustering. Proceedings of the International Computer Music Conference, pp. 454–457.

Real-Time Implementation of a General Model for Spatial Processing of Sounds. (2002). Proceedings of the International Computer Music Conference, pp. 244–247.

Apel, T. (2001). Real-time Complex Cepstral Signal Processing for Musical Applications.

Puckette, M., & Apel, T. (1998). Real-time audio analysis tools for Pd and MSP. Proceedings of the International Computer Music Conference, 109–112.

Apel, T. (1993). Transformation of Audio Signals by use of the McAulay-Quatieri Sinusoidal Model of Sound [Master’s thesis]. Dartmouth College.

Apel, T. (1990). Thin Layer Liquid Acoustical Filters. Pomona College.