![]() But again, the sampling takes the most amount of overhead and RAM.ĭid software exist to do this back then? Yea kinda. Spectrum Analyzer visualization FFT? You may be able to use some optimized routines that were targeted for 8-bit MCUs like the Atmel AVR/PIC since they are table based. ![]() Lots of math work that an FPU would be good at doing, but with a certain degree of error, can be done with integers only. Then this table is painted in a graph on screen. you basically have to sample the audio at a given frequency, and record the dB levels of each sample in a table for a given time period. ![]() You may be able to use integer-based math and show an "oscilloscope" like waveform on the screen, but it certainly wont be fast. To do those kinds of visualizations takes an immense amount of processing power.
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