把这一句，留给此刻的你
If you look at a record under a microscope, the high frequencies are short jagged edges... and the low frequencies are long swinging ones are deep bass sounds. When it cut it at half speed, you're getting more of those on the record.
如果你在显微镜下观察记录，高频是短的锯齿状边缘。低频是长摇摆的低音。当它以一半的速度切割时，你会得到更多的记录。