罗伯茨说，通过将声音转变为数字编号，他的计算器可以辨识出低音和高音的频率。
By converting sound into a numerical sequence, he says his calculator can recognize frequencies for bass and treble.
在现有音道中，系统辨识出像落雨声那样的无方向性声音并把它们传送给新的扬声器。
In existing soundtracks, the system recognizes nondirectional sounds like falling rain and sends them to the new speakers.
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