Department of Signal Processing and Acoustics

Speech recognition

Our goal is to generally improve the speech recognition methodology with the help of the new algorithms developed in Aalto University. Speech recognition offers challenging benchmarking tasks for efficient algorithms that can process and learn to represent large quantities of data. In addition to improving the acoustic models of phonemes we aim at developing new learning statistical language models for difficult large vocabulary continuous speech recognition tasks.

Research Overview

We currently specialize in the following research areas in speech recognition:

  • Sub-word units and deep learning in language modeling
  • Speaker adaptation and pronunciation rating in acoustic modeling
  • Unlimited vocabulary continuous speech recognition
  • Speech recognition and language modeling methods for under-resourced languages
  • Methods for describing and translating audiovisual
  • Speaker and language recognition and diarization

We are part of Finnish Center of Artificial Intelligence (FCAI, https://fcai.fi/).

Software & Demonstrations

Software produced as part of our research is available on our GitHub

Demonstration videos of our research work can be watched on our YouTube Channel

Latest publications

Study of Formant Modification for Children ASR

Hemant Kathania, Sudarsana Kadiri, Paavo Alku, Mikko Kurimo 2020 Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing

Creating speaker independent ASR system through prosody modification based data augmentation

S. Shahnawazuddin, Nagaraj Adiga, Hemant Kumar Kathania, B. Tarun Sai 2020 Pattern Recognition Letters

North Sámi morphological segmentation with low-resource semi-supervised sequence labeling

Stig-Arne Grönroos, Sami Virpioja, Mikko Kurimo 2019 Fifth Workshop on Computational Linguistics for Uralic Languages

Transparent pronunciation scoring using articulatorily weighted phoneme edit distance

Reima Karhila, Anna Riikka Smolander, Sari Ylinen, Mikko Kurimo 2019 Proceedings of Interspeech

Spherediar: An Effective Speaker Diarization System for Meeting Data

Tuomas Kaseva, Aku Rouhe, Mikko Kurimo 2019 2019 IEEE Automatic Speech Recognition and Understanding Workshop, ASRU 2019 - Proceedings

Statistical models of morphology predict eye-tracking measures during visual word recognition

Minna Lehtonen, Matti Varjokallio, Henna Kivikari, Annika Hultén, Sami Virpioja, Tero Hakala, Mikko Kurimo, Krista Lagus, Riitta Salmelin 2019 MEMORY AND COGNITION

Statistical models of morphology predict eye-tracking measures during visual word recognition

Minna Lehtonen, Matti Varjokallio, Henna Kivikari, Annika Hultén, Sami Virpioja, Tero Hakala, Mikko Kurimo, Krista Lagus, Riitta Salmelin 2019

Computer-Supported Form Design using Keystroke-Level Modeling with Reinforcement Learning

Katri Leino, Kashyap Todi, Antti Oulasvirta, Mikko Kurimo 2019

RL-KLM: Automating Keystroke-level Modeling with Reinforcement Learning

Katri Leino, Antti Oulasvirta, Mikko Kurimo 2019 24th International Conference on Intelligent User Interfaces (IUI ’19)
More information on our research in the Research database.
Research database
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