This tool for visually-impaired users essentially turns the trackpad into a screen reader, supporting special gestures to switch between windows and audio feedback when clicking.

VoiceOver可以把trackpad从根本上变成一个屏幕阅读器，支持特殊手势切换窗口以及在点击时获得声音反馈。

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The paper focuses on circuit design of power switch with bipolar technology and audio amplifier with CMOS techn.

本文论述双极型功率开关电路和CMOS音频功率放大器电路设计。

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This paper designs a kind of power detecting circuit of switch power supply used for audio power amplifier. It presents the principle and realization method of the circuit.

为了使开关电源很好地应用于音响功放，设计了一种开关电源输出功率检测电路，给出了电路的原理和具体实现方法。

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Spectators watch the proceedings behind soundproof glass, and receive audio on a 40-second delay so that a court security officer can switch on a white noise machine while classified information is being discussed.

BBC: Guantanamo trials: Judge orders end to secret censor

At the core of the Fidelio SoundBar are high quality TI Class-D amplifiers - with a built-in DAC - powered by a compact SMPS (Switch-Mode-Power-Supply) to provide a full digital architecture, delivering highly efficient audio amplification and premium audio quality.

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