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
Prosodic effects on plosive duration in German and Austrian German [link]
This study investigates the acoustic cues used to mark prosodic boundaries in two varieties of German, with a specific focus on variations in production of fortis and lenis plosives. Based on prosodic-boundary-adjacent and non-boundary-adjacent plosives from GRASS (Austrian German) and the Kiel Corpus of Read Speech (Northern German), we found that closure and burst duration features, as well as duration of a preceding adjacent segment,vary consistently in relationship to the presence or absence of a prosodic boundary, but that the relative weights of these features differ in the two varieties studied. Whereas stress marking in plosives is being driven more by burst duration in the Kiel Corpus data, it is driven more by closure duration in the GRASS data. This study suggests that boundary detection tools require variety-specific training materials, or else information from comparative studies such as the current work, in order to attain optimalfunction in specific varieties or dialects.Contact: Barbara Schuppler
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