This team researches on coded representation of media, particularly speech and audio. In other words, the development speech and audio codecs, with a main focus on mobile applications.
New codecs often enable new types of applications, and new applications define the requirements for new codecs. Therefore the teams develops not only codecs, but also new application and end-to-end solution concepts.
Standardization plays a key role in the deployment of our research results. The team participates actively in ITU SG16 and 3GPP SA4.
Vasilache, Adriana, 'Indexing of lattice codevectors applied to error resilient audio coding', AES 30 Saariselkä, March 15-17, 2007.
Rämö, A.; Toukomaa, H.; Greer, S. C.; Laaksonen, L.; Stachurski, J.; Ertan, A. E. ; Svedberg, J.; Gibbs, J. and Vaillancourt, T., 'Quality evaluation of the G.EV-VBR speech codec'. Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, Las Vegas, NV, USA, March 2008, pp. 4745-4748.
Jelínek, M.; Vaillancourt, T.; Ertan, A. E.; Stachurski, J.; Rämö, A.; Laaksonen, L.; Gibbs, J. and Bruhn, S., 'ITU-T G.EV-VBR baseline codec'. Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, Las Vegas, NV, U.S.A., March 2008, pp. 4749-4752.
Turku, J.; Vilermo, M.; Seppälä, E.; Pölönen, M.; Kirkeby, O.; Kärkkäinen, A. and Kärkkäinen, L., 'Perceptual Evaluation of Numerically Simulated Head-Related Transfer Functions', AES 124th International Convention, Amsterdam, Netherlands, May 17-20, 2008, preprint 7489.
'A Framework for a Near-Optimal Excitation Based Rate-Distortion Algorithm for Audio Coding'. Submitted to AES 125th International Convention, San Francisco, USA, October 2-5, 2008.
Mauri Vaananen, Team Leader
