For the Hi-Fi enthusiasts among us...

J!m

digitizing at any point in the process produces distortions (breaks/imperfections) through the digital "fragmenting" of the continuous analogue signal.

J!m

It's "good enough" (I listen to it myself) but it is not without flaws.

Mathematically, the sample rate is double the frequency to remain "intact", but the rate is a step, and an audio frequency change from step to step is still recorded as two discrete samples, rather than an uninterrupted signal. That break is the issue. Nyquist indicated the necessary bandwidth to record 22kHz is 44kHz sample rate, and that is correct/accurate/sufficient, but it does not address the discontinuities of the conversion process itself- Fitting a series of 90-degree angles to a curve.

I didn't really explain these breaks well in my last post, and I think it is better said as fitting a series of 90-degree angles to a curve.

Jakeys

No, there is no stepping in the analog realm. As long as sufficient sample rate is used, which as Deafboy mentioned is 44.1 for music (can be higher for high res, though you won't hear it) the original waveform can be recreated perfectly. The "fitting a series of 90-degree angles to a curve" is exactly what the theorem is talking about solving with a high enough sample rate. If the sample rate is high enough, the original curve is perfectly recreated.

This has all been proven and demonstrated ad nauseum.

Jakeys

This video may be of interest.

Deafboy

Trà ngon.
Điều ấn tượng không kém là chiếc loa đặt cạnh đó, với loa siêu cao tần và quạt tản nhiệt. Có vẻ như nó có khả năng tái tạo âm thanh từ 0 đến 24 kHz!