SPSC Lab

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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.

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

 

Result of the Month July 2014

Previous results of the month

Frequency of phonological- and reduction rules in read (RS) and conversational (CS) Austrian German.

Whereas for the varieties of German spoken in Germany, conversational speech has been given noticeable attention in the fields of linguistics and automatic speech recognition (ASR), for conversational Austrian there is a lack in speech resources and tools as well as phonetic studies. Based on the recently collected GRASS corpus, we provide rule-based methods for the creation of a pronunciation dictionary and an ASR-supported automatic method for the creation of broad phonetic transcriptions of conversational Austrian German. Our comparative analysis based on these transcriptions showed that whereas only 33.1% of the tokens in read speech show variation from the canonical transcription, this number raises to 63.2% in conversational speech. In the future, we will perform more detailed analysis concerning the conditions for pronunciation variation and incorporate our findings into models of automatic speech recognition.