Engineering, 19.03.2020 22:49 zachstonemoreau

In the previous example, we want to avoid aliasing by oversampling by a factor or two, digitally filtering, then "decimating" by a factor of two down to the 44.1kHz rate; that is, we will sample at 88.2 kHz. To do the filtering, we use a 100-tap FIR filter. Assuming each digital processing step is a single operation, how many MegaFLOPs (million floating point operations per second) will we need to perform to accomplish this, assuming there are no parallel operations? Remember, we're working in stereo. The previous example: We want to produce "CD quality" digitized audio: 44.1 kHz, 16-bit stereo audio.

(a) What is the 3 dB bandwidth limit for this digitization rate?
(b) What is the total byte rate (kb/sec) for this digitization?

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In the previous example, we want to avoid aliasing by oversampling by a factor or two, digitally fil...