Target talker enhancement in hearing devices

We describe a novel coherent modulation filtering technique for single channel target talker enhancement in the presence of interfering talkers. For this technique, we have expanded our previous work on coherent modulation filtering with a carrier estimator that is more robust to speech from interfering talkers, and a modulation filter that operates on shorter time-scales. We have evaluated the technique in a subjective listening test, which indicates that the novel target talker enhancement technique achieves a moderate improvement in speech reception. We summarize our observations on single channel target talker enhancement and conclude with directions for further research.