这些理论，对于设计满足一定信噪比要求的数字波形合成器及对其性能的分析具有指导意义。

These theories provide a guide for designing and analyzing digitally synthesized signals with a specified SNR requirement.

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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。

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.

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