Virtual Instrument Collection phonocardiogram source code, is based on the computer sound card, which determined the sound signal and spectrum analysis.

心音采集的虚拟仪器源代码，是基于计算机声卡的，里面有心音信号和频谱分析等。

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The sound experience is further enhanced by Philips' Virtual Surround Sound technology and advanced spatial algorithms that produce a rich and immersive audio experience from one source.

ENGADGET: Philips showcases its 2013 Fidelio audio lineup at CES, we go eyes-on