My Publications

This is a list of papers I have published in recent years.

Journal Papers

• J. Abarca López and A. Delgado Castro. "Medición, Simulación y Evaluación de Respuestas Impulsionales para Espacios Acústicos con Geometría Rectangular," Revista de Matemática: Teoría y Aplicaciones, vol. 32, issue. 1, pp. 1-13, 2025. [PDF]
• A. Delgado Castro and O. Rojas Bolaños. "Estudio del Circuito de Control para un Potenciostato con una sola Fuente de Alimentación," Ingeniería: Revista de la Universidad de Costa Rica, vol. 35, issue. 1, pp. 42-52, 2025. [PDF]
• A. Delgado Castro and B. M. Méndez Picado. "Análisis Acústico del Teatro Nacional de Costa Rica a partir de sus Respuestas Impulsionales," Tecnología en Marcha, vol. 32, issue. 2, pp. 49-59, 2024. [PDF]
• A. Delgado Castro and J. E. Szymanski. "Multipitch Estimation Based on the Iterative Detection and Separation of Note Events from Single-Channel Polyphonic Recordings," The Journal of the Acoustical Society of America, vol. 154, issue. 4, pp. 2625-2641, 2023. [PDF]
• A. Delgado Castro and O. Rojas Bolaños. "Construcción de un Sistema de Bajo Costo para el Uso y Evaluación de Sensores Simiconductores para Gases," Educación Química, vol. 26, pp. 299-306, 2015. [PDF]

Conference Papers

• A. Delgado Castro and O. Rojas Bolaños. "Análisis Comparativo de un Potenciostato de Bajo Costo Basado en Arduino," Ingeniería: Revista de la Universidad de Costa Rica, vol. 35, issue. NE5, pp. 120-127, 2025. [PDF]
• A. Delgado Castro and J. E. Szymanski. "A Note Event-Based Decomposition of Polyphonic Recordings Applied to Single-channel Audio Source Separation," E-Business and Telecommunications. Communications in Computer and Information Science, vol 1247. Springer, 2020. [PDF]
• A. Delgado Castro and J. E. Szymanski. "Semi-Supervised Audio Source Separation based on the Iterative Estimation and Extraction of Note Events," Proceedings of the 16th International Conference on Signal Processing and Multimedia Applications. Prague (Czech Republic), Jul, 2019. [PDF]
• A. Delgado Castro and J. E. Szymanski. "Semi-Automatic Mono-to-Stereo Upmixing via Separation of Note Events," Proceedings of the AES International Conference on Immersive and Interactive Audio. York (UK), Mar, 2019. [PDF]
• A. Delgado Castro, G. Siamantas, and J. E. Szymanski. "Onset Detection via Separation of Harmonic Content from Musical Notes," Proceedings of the 10th York Doctoral Symposium on Computer Science and Electronic Engineering. York (UK), Nov, 2017. [PDF]
• A. Delgado Castro and J. E. Szymanski. "Improved Pitch Trajectory Estimation for Polyphonic Single-Channel Audio Mixtures," Proceedings of the 11th Digital Music Research Network Workshop. London (UK), Dec, 2016. [PDF]
• A. Delgado Castro and J. E. Szymanski. "Multipitch Estimation Applied to Single-Channel Audio Source Separation: Relevant Techniques and Challenges," Proceedings of the 9th York Doctoral Symposium on Computer Science and Electronic Engineering. York (UK), Nov, 2016. [PDF]

PhD Thesis

• A. Delgado Castro. "Iterative Separation of Note Events from Single-Channel Polyphonic Recordings". Doctor of Philosophy in Electronic Engineering . University of York. United Kingdom, 2020. [PDF]

MSc Thesis

• A. Delgado Castro. "Restauración de Grabaciones de Audio Antiguas Mediante el Método de Recorte de Coeficientes en el Dominio Wavelet" (A Wavelet-based Thresholding Approach Applied to the Restoration of Old Audio Recordings). Master of Science in Electrical Engineering. University of Costa Rica. Costa Rica, 2010. [PDF]

External Articles

• E. Rojas Arias. "Melodías en Discos Antiguos Vuelven a la Vida" (Melodies in Old Records are Coming Back to Life). Crisol - Semanario Universidad de Costa Rica. No. 1902. Jun, 2011. [PDF]

Miscellaneous

• CEA Evaluation Results (2022). [PDF]