F0 Subband

F0 subband analysis focuses on extracting and utilizing information from the frequency band containing the fundamental frequency (F0) of speech or music for various applications. Current research emphasizes using F0 subbands in conjunction with other acoustic features, such as spectrograms, and employing advanced models like Res2Nets with attention mechanisms to improve performance in tasks like fake speech detection. This research is significant because it reveals subtle differences in F0 characteristics between real and synthetic audio, and also provides insights into the evolution of musical styles, impacting fields such as audio forensics and music analysis.