For example, the 'click' of a door being opened may simply serve to convince the audience that the image portrayed is real, and the audience may only subconsciously note the expected sound.
例如，开门的“咔哒”声可能只是为了让观众相信所描绘的图像是真实的，而观众可能只是下意识地注意到预料之中的声音。
A second consideration is that a useful synth VCO is expected to output several different waveforms, so that the synth player has harmonic starting points for creating a given sound.
第二个考虑因素就是要求有效的合成器V CO能产生多种不同的波形，这样一来的话合成播放器对产生某一给定的声音都有相应的和声始点。
That staging point is expected to come at about the 124-second mark, when the supersonic Ares I-X rocket is traveling Mach 4.7? More than four times the speed of sound, its Max speed for the flight.
分离时刻预计在124秒时，这时超音速火箭战神i - X以4.7马赫的速度飞行——这是音速的四倍，也是飞行的最高速度。
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