过取样 meaning in English

over sampling
oversampling

Because of the using of interpolation , noise shaping and switching amplification in the digital audio amplifier technology , the power supply modulator is not only much efficient but also behaving good in envelope amplification , this advantage is hard to implemented with conventional technology
数字音频功放技术是近年发展起来的高效率音频放大技术，该放大技术采用了过取样、噪声整形等数字音频处理算法和开关功率放大。采用该技术实现的电源调制器不但具备很高的效率，而且能高指标地放大包络信号，是常规的电源调制技术无法实现的。