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目前声卡的重要指标——音乐合成从功能分有两种:一种称为调频(FM)合成法,另一种称为波表(WT)合成法。早期的声卡使用调频合成法,缺点是音色少,音质差,但价格低廉。波表合成法是先将真正乐器的声音进行数字化采样处理,形成波形数据,然后将各种乐器的波形数据依次固化在只读存储器中,发音时只要经过查表法就能得到所需乐器的波形数据。衡量声卡音乐合成器性能好坏的参数
At present, an important indicator of sound card - music synthesis has two functions from the points: one is called FM (FM) synthesis method, the other known as wavetable (WT) synthesis method. Early sound card using FM synthesis method, the disadvantage is less timbre, poor sound quality, but the price is low. Wavetable synthesis method is the first real instrument digital sound sampling processing, the formation of waveform data, and then a variety of musical instrument waveform data in turn solidified in read-only memory, pronunciation as long as the look-up table can get the required instrument Waveform data. Measurement of sound card music synthesizer performance parameters