Also remember that one of the reasons this modulation is used, rather than the fixed code method we find in a standard CD, is that DSD is capable of amazing low level detail - as seen in its ability to render many more low level detail bits and wider dynamic range than can be handled by any other means.
It's helpful to note that any DAC is capable of full output - but not every DAC can handle the quieter details and it is those quiet details that are added when we add more bits. By this I mean for you to understand that the maximum output loudness in digital audio can be achieved by even a lowly 8 bit DAC but the low level details, what's happening down in the quietest passages found in a 144dB signal range can only be handled with a 1-bit encoder/decoder.
So it is these low level details that we'll want to look at.
Because DSD systems don't rely on a fixed code to assign a stepped voltage, the perfect question here is "what does it use"? It uses what's known as error feedback to get those quiet passages right.
Let's take a closer look tomorrow at how getting it wrong gets it right.
Getting it wrong
Also remember that one of the reasons this modulation is used, rather than the fixed code method we find in a standard CD, is that DSD is capable of amazing low level detail - as seen in its ability to render many more low level detail bits and wider dynamic range than can be handled by any other means.
It's helpful to note that any DAC is capable of full output - but not every DAC can handle the quieter details and it is those quiet details that are added when we add more bits. By this I mean for you to understand that the maximum output loudness in digital audio can be achieved by even a lowly 8 bit DAC but the low level details, what's happening down in the quietest passages found in a 144dB signal range can only be handled with a 1-bit encoder/decoder.
So it is these low level details that we'll want to look at.
Because DSD systems don't rely on a fixed code to assign a stepped voltage, the perfect question here is "what does it use"? It uses what's known as error feedback to get those quiet passages right.
Let's take a closer look tomorrow at how getting it wrong gets it right.
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