PDM to SPL Demonstrated in an LPC810

2015-02-11

This post demonstrates the SPL meter described earlier running in an NXP LPC810 ARM CORTEX-M0+ microprocessor. The computed SPL level …

PDM in another 8-pin CPU

2015-02-06

This post explores interfacing a PDM microphone with an NXP LPC810 ARM CORTEX-M0 microprocessor, taking advantage of its existing peripherals …

2015-02-02

In this post, we discuss why we represent SPL on a logarithmic scale, why you should care, and how we …

2015-01-21

This is part of a series of articles on the general subject of audio signal processing from air to information. …

2015-01-20

This is part of a series of articles on the general subject of audio signal processing from air to information. …

2015-01-16

This is part of a series of articles on the general subject of audio signal processing from air to information. …

2014-11-04

This is part of a series of articles on the general subject of audio signal processing from air to information. …

2014-10-21

This is the first of several articles on the general subject of audio signal processing, starting at the interface between …