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“The A/D converters are complex and sophisticated systems: there are many A/D types and every type can have several configurations. So the ADC are used to transform analog information, such as audio signals or measurements of physical variables (e.g. force or shaft rotation) into a form suitable for digital handling.

Lately I have an idea that is whirling through my head. I would like to realize a project using a micro-controller that can reproduce audio files. A waveform audio file, or simply .wav after its extension, is a common type of sound file. The wav file has two qualities and one drawback: it is a lossless format, that is the wav file format does not compromise the audio quality, moreover it is very easy to edit and manipulate with software. The drawback is that its extension is very large: a four-minute song can occupy over 40 memory megabytes! (2*44000*2*4*60=42240000/1024=41250MB). The A/D for audio applications convert the analogical audio in digital audio, this conversion must take account of:” source...