Signal Processing and Speech Communication Laboratory


In 2000, the Signal Processing and Speech Communication Laboratory (SPSC Lab) of Graz University of Technology (TU Graz) was founded as a research and education center in nonlinear signal processing and computational intelligence, algorithm engineering, as well as circuits & systems modeling and design. It covers applications in wireless communications, speech/audio communication, and telecommunications.

If you want to learn more about Signal Processing, click: What is Signal Processing?

The Research of SPSC Lab addresses fundamental and applied research problems in five scientific areas:

Result of the Month

Bayesian Neural Networks with Weight Sharing Using Dirichlet Processes [link]

We extend feed-forward neural networks with a Dirichlet process prior over the weight distribution. This enforces a sharing on the network weights, which can reduce the overall number of parameters drastically. We alternately sample from the posterior of the weights and the posterior of assignments of network connections to the weights. This results in a weight sharing that is adopted to the given data. In order to make the procedure feasible, we present several techniques to reduce the computational burden. Experiments show that our approach mostly outperforms models with random weight sharing. Our model is capable of reducing the memory footprint substantially while maintaining a good performance compared to neural networks without weight sharing.

Contact: Wolfgang Roth

Latest News

Check out INTERSPEECH 2019, the 20th Annual Conference of the International Speech Communication Association, which will be held in Graz, Austria between 15 and 19 September, 2019.

06 May 2019 New Website Launched!

01 Jan 2019 PhD Positions in Wireless Communications and Positioning

05 Oct 2018 Florian Muralter wins DEGA-Studienpreis

01 Sep 2018 Student Projects Informatioin Event: 12.10., 14:30 (BSc SP; MSc Project and Master Theses)

05 Jul 2018 Website for Interspeech 2019 updated

01 May 2018 PhD Positions in Wireless Communications and Positioning

04 Mar 2018 Opening of a NEW Christian Doppler Laboratory at the SPSC: Location-aware Electronic Systems

Check older news here.