>>20970047https://twitter.com/boko_kama_/status/1396436486824751106This guy put Suisei's voice through audio spectrum analysis. 1/f noise has spectral density that can be described with S(f)=k/f^a, where "k" is a constant, "f" is frequency and "a" is the exponent of the frequency. When a=1, it's considered the canonical case of pink noise, although it's generally considered a 1/f fluctuation for 0.9<a<1.1. The analysis found that Suisei's voice averages a=1.004 across multiple songs.
1/f patterns are found all throughout the natural world, in the human heartbeat, the nucleus of an atom, even the aging of C. elegans. Some people theorise that certain pieces of music are enjoyable because they emulate patterns that exist in nature, even if the listeners don't consciously know it. Essentially, Suisei's voice is exceptionally close to imitating this fluctuation, which could be a reason why we enjoy her music so much. Or if you want to phrase it in a cooler way, Suisei's voice is mathematically perfect.
