Digital audio signals and how they really behave [video]

Re:Digital audio signals and how they really behave [video] by sp332 on Tuesday February 26, 2013 @01:46PM (#5287521)

Would be interesting to see a complex analogue signal being fed through the digital pipeline and then inverted against the original to see the differences.

It's not a real demo but there's a drawing of it at 9:45 or so. The "quantization noise" is the noise introduced by digitization. And of course the rest of that whole section is the same thing, albeit with a simple 8-bit signal.

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Re:Digital audio signals and how they really behave [video] by xiphmont on Wednesday February 27, 2013 @03:02AM (#5291229)

It's not obvious, but that's actually a real plot of a real signal example. Have a look in the source code for the cairo animations, it's generated from data.

It was easier to use a real example than try to draw something by hand that was close to correct :-)

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