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0answers
25 views

Digital Filter for FRDMKL25Z

I was wondering if I can get some comments for my filter design. Signal to Filter: F(x)=sin(2*pi*80*t)+sin(2*pi*125*t) Since I'm implementing this in C for an embedded system I have chosen and IIR ...
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2answers
87 views

Why do we follow Shannon's Theorem in audio sampling?

My professor told me that in sampling a signal, is not usual to respect the Shannon theorem because the interpolation formula contains sines and fractions which are difficult to calculate with a ...
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1answer
108 views

Comparing two sound files in embedded-systems (C language)

what would be the most efficient ("cheap" in terms of system resources etc.) way to compare 2 sound files? Here is the scenario. Sound A comes as an input. There is sound B stored in memory. We need ...
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1answer
204 views

Which digital modulation scheme would be suitable for transmitting digital data through the output of a PC soundcard

I need to output a data stream at 40 kbit/s or faster out of a computer system whose only accessible output peripheral is the audio interface. This interface has reasonable specs, 96 kHz sample rate, ...