Vocal Effort Modification through Harmonics Plus Noise Model Representation. - Àngel Calzada; Joan Claudi Socoró (NOLISP, 2011)

Parametric model for vocal effort interpolation with harmonics plus noise models. - Àngel Calzada Defez; Joan Claudi Socoró Carrié; Robert A. J. Clark (SSW, 2013)

Voice Quality Modification Using a Harmonics Plus Noise Model - Transferring Vocal Effort with Parallel Corpora. - Àngel Calzada Defez; Joan Claudi Socoró Carrié (Cogn. Comput., 2013)

Conveying expressivity and vocal effort transformation in synthetic speech with Harmonic plus Noise Models. - Àngel Calzada Defez (2016)