Bispectrum features for robust speaker identification

Along with the spoken message, speech contains information about the identity of the speaker. Thus, the goal of speaker identification is to develop features which unique to each speaker. This paper explores a new feature for speech and shows how it can be used for robust speaker identification. The results are compared to the cepstrum feature due to its widespread use and success in speaker identification applications. The cepstrum, however, has shown a lack of robustness in varying conditions, especially in a cross-condition environment where the classifier has been trained with clean data but then tested on corrupted data. Part of the bispectrum is used as a new feature and we demonstrate its usefulness in varying noise settings