The MIPI Alliance has just released details on its MIPI SoundWire audio interface spec for amplifiers, microphones and audio codecs used in smartphones, tablets, mobile PCs and other devices.
What is PDM and what is it doing in my microphone? PDM stands for Pulse Density Modulation. It's one of the formats in which you can waggle a two-level signal so that it has a probability k in one ...
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