Chris Hamilton-
PDM based output
08/17/2015 at 20:00 • 0 commentsWith PDM, SPI or even GPIO can be utilized to receive the audio input. This is much better than just i2s. In fact, PDM can be made to work as an i2s stream, yet is compatible with regular SPI or fast GPIO input.
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Not just Cardioid
08/17/2015 at 19:59 • 0 commentsThe design allows for all sorts of directional listening and filtering.
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4mm spacing
08/17/2015 at 19:58 • 0 commentsA minimum of 4mm is required between the microphones for the ST software to work.
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ST demo
08/17/2015 at 19:58 • 0 commentsI went to a session put on by ST that discussed their work to define software based filtering of microphone arrays. So I was inspired by this.