They then altered the recordings to create higher and lower pitched versions of each sentence.

而后研究者们改变这些声音创造这句话高低两个不同版本。

At the bottom, the lower pitched sounds.

在底部， 低音调的声音。

Faster vibrations translate to a higher pitched sound, slower vibrations translate to a low pitched sound and everything in between, that's in between.

更快的振动转化为更高音调的声音，更慢的振动转化为低音调的声音以及介于两者之间的一切。

He made her no answer; and only observed, after again examining the room, that it was very low pitched, and that the ceiling was crooked.

他没有回答她，只是在再次检查了房间之后，发现房间的坡度很低， 而且天花板是弯曲的。