A Database for the Acoustic Study of Male Bel Canto [a]

All acoustic analyses in this study were performed using the Praat software to ensure data accuracy and reproducibility. The sound samples used and their corresponding acoustic parameters are provided in the supplementary materials.
For ease of data management and reference, all samples were assigned a unified coding system. Samples numbered 1-16 correspond to those directly cited in the main text of the paper. As the total number of samples involved in the analysis exceeds 30, the remaining samples are sequentially numbered starting from 17.
Furthermore, all original audio files have been submitted as supplementary materials. A strict one-to-one correspondence has been established between the audio files and the sample codes in the dataset, ensuring an accurate match between the data and the audio. This facilitates cross-validation and in-depth analysis by readers, peers, and experts.