A top-down auditory attention model for learning task dependent influences on prominence detection in speech

A top-down task-dependent model guides attention to likely target locations in cluttered scenes. Here, a novel biologically plausible top-down auditory attention model is presented to model such taskdependent influences on a given task. First, multi-scale features are extracted based on the processing stages in the central auditory system, and converted to low-level auditory “gist” features. These features capture rough information about the overall scene. Then, the top-down model learns the mapping between auditory gist features and the scene categories. The proposed top-down attention model is tested with prominent syllable detection task in speech. When tested on broadcast news-style read speech using the BU Radio News Corpus, the model achieves 85.8% prominence detection accuracy at syllable level. The results compare well to the reported human performance on this task.

• Type: Conference
• Year: 2008
• Where: ICASSP
• Authors: Ozlem Kalinli, Shrikanth S. Narayanan
• Keywords: ICASSP 2008, Model, Signal Processing, Top-down, Top-down Auditory Attention