Digitala: An Augmented Test and Review Process Prototype for High-Stakes Spoken Foreign Language Examination. - Reima Karhila; Aku Rouhe; Peter Smit; André Mansikkaniemi; Heini Kallio; Erik Lindroos; Raili Hildén; Martti Vainio; Mikko Kurimo (INTERSPEECH, 2016)

SIAK - A Game for Foreign Language Pronunciation Learning. - Reima Karhila; Sari Ylinen; Seppo Enarvi; Kalle J. Palomäki; Aleksander Nikulin; Olli Rantula; Vertti Viitanen; Krupakar Dhinakaran; Anna-Riikka Smolander; Heini Kallio; Katja Junttila; Maria Uther; et al. (INTERSPEECH, 2017)

A pipeline for automatic assessment of foreign language pronunciation. - Aku Rouhe; Reima Karhila; Heini Kallio; Mikko Kurimo (SLaTE, 2017)

Prominence-based Evaluation of L2 Prosody. - Heini Kallio; Antti Suni; Päivi Virkkunen; Juraj Simko (INTERSPEECH, 2018)

Analyzing second language proficiency using wavelet-based prominence estimates. - Heini Kallio; Antti Suni; Juraj Simko; Martti Vainio (J. Phonetics, 2020)

New data, benchmark and baseline for L2 speaking assessment for low-resource languages. - Mikko Kurimo; Yaroslav Getman; Ekaterina Voskoboinik; Ragheb Al-Ghezi; Heini Kallio; Mikko Kuronen; Anna von Zansen; Raili Hildén; Sirkku Kronholm; Ari Huhta; Krister Lindén (SLaTE, 2023)

Prosody and fluency of Finland Swedish as a second language: Investigating global parameters for automated speaking assessment. - Heini Kallio; Maria Kautonen; Mikko Kuronen (Speech Commun., 2023)