这个声谱约有十个八度的跨度。前五个八度音阶与声波一致——仅存在了38万年的宇宙原声。

This sound spectrum spans about ten octaves. The top five octaves correspond to acoustic waves-the primordial sound of the universe, just 380,000 years into its existence.

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对于旋律，一度的界定更宽松，比如，男人和女人一起演唱，通常单独的八度更能确切描述八度演唱。

The same term is more loosely used for singing of the same melody, for example, by men and women together, usually an octave apart, and more accurately described as singing in octaves.

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几乎所有的音乐体系都是以八度音域为基础——八度指的是相邻的音组中相同音名的两个音。

Almost all musical systems are based on scales spanning an octave-the note that sounds the same as the one you started off with, but at a higher or lower pitch.

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And, of course, there's this-- another acoustical phenomenon here we've talked about before, what's the relationship within an octave?

当然,就是这个,我们以前谈论过的,另一种声学现象,八度的内部联系是什么呢

耶鲁公开课 - 聆听音乐课程节选

We said there are seven notes in each of these two scales, twelve pitches all together within the octave.

我们说在这两个音阶中都有七个音符,一个八度包含十二个音高

耶鲁公开课 - 聆听音乐课程节选

Remember the other people, the octaves had been enunciated, the triads had been enunciated.

记住其他人，八度音也曾发明过，三元组也被发现过。

麻省理工公开课 - 固态化学导论课程节选