The AudioFile: Analog-to-digital conversion All the fancy formats in the world won't help if there's no way to get audio.

Delta-sigma converters with sinc (sinx/x) digital filters change the signal chain’s complex antialiasing-filter requirements to a simple, first-order, passive filter. With this “easy-to-design” ...

For example, digital filter design reflects the importance of understanding and using this technology to provide precision, stand-alone digital or integrated analog/digital product solutions.

Analog anti-aliasing filters are required before the ADC in oversampled sampled-data systems, as is a reconstruction (anti-imaging) filter after the digital-to-analog converter (DAC).

Microcontrollers are digital devices at heart. They can do fancy things like convert analog signals into a digital value but going the other direction is a bit tougher. Pulse-Width Modulation is us… ...