half octave illusion 半八度错觉
In this mixed environ ment humans can easily detect frequencies as fine as one twelfth of an octave—a half step in musical terminology.
于是,在混合的声音环境中,人类能够听得到的声音频率能够精细到一个八度音阶的12分之1,即音乐术语中的半音(此处感谢Zakk指教)。
Even our primate relatives do not come close: macaques can resolve only half an octave.
即使我们的灵长类亲戚也没有和我们接近的能力,短尾辕仅仅能辨析八度音阶的一半。
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