This project is an experiment of the Digital Signal Processing based on microcontroller AVR AtTiny 26 instead of an ordinary digital signal processor. The project used as simple audio signal processing. There are some simple audio processing, such as Delay, Echo, Pitch Conversion, that easy to experiment with the project.
This RLC meter design uses direct digital synthesis (DDS) techniques to generate the test waveform and digital signal processing (DSP) methods to condition the resulting voltage and current signals. Three test frequencies are implemented (100Hz, 1kHz, 10kHz) and both parallel and series circuit models are evaluated, automatic selection of both frequency and circuit model [...]
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