通过对TDA7490的正弦逆变电源运用设计，尝试出一种利用D类开关音频器件设计低失真逆变电源的方法。
By designing TDA7490 sine wave inverter power supply, we educed a method to design an inverter power supply with low distortion by using class-D on-off audio part.
宽带宽和低失真特性则有益于音频和其它交流应用。
Audio and other AC applications benefit from the wide bandwidth and low distortion.
在低比特率音频感觉编码中，预回声失真更为突出，而对其处理的前提是瞬态信号的有效检测。
In perceptual audio coding with low bit rate application, the pre-echo artifact is more distinct, and the effective detection of transient signals is the precondition.
在低比特率音频感觉编码中，预回声失真更为突出，而对其处理的前提是瞬态信号的有效检测。
In perceptual audio coding with low bit rate application, the pre-echo artifact is more distinct, and the effective detection of transient signals is the precondition.
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