Robust Acoustic Domain Identification With Its Application To Speaker Diarization
2022 · A Kishore Kumar, Shefali Waldekar, Md Sahidullah, et al.
Abstract
With the rise in multimedia content over the years, more variety is observed in the recording environments of audio. An audio processing system might benefit when it has a module to identify the acoustic domain at its front-end. In this paper, we demonstrate the idea of *acoustic domain identification* (ADI) for *speaker diarization*. For this, we first present a detailed study of the various domains of the third DIHARD challenge highlighting the factors that differentiated them from each other. Our main contribution is to develop a simple and efficient solution for ADI. In the present work, we explore speaker embeddings for this task. Next, we integrate the ADI module with the speaker diarization framework of the DIHARD III challenge. The performance substantially improved over that of the baseline when the thresholds for agglomerative hierarchical clustering were optimized according to the respective domains. We achieved a relative improvement of more than \(5%\) and \(8%\) in DER fo
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