Baffled and Frustrated: Streaming/DAC Sound Issues

clearthinker

...the problem is caused by breaking up the analogue signal into billions of tiny fragments that cannot be correctly reassembled ... It would seem no-one can solve this - the issue is 40 years old and there is no solution in sight ...

That is not at all how digital audio works. There’s "no solution in sight" because the analog signal is not broken up "into billions of tiny fragments."

The basis of digital audio is the Fourier Transform. The theorem that makes digital audio work is the same math that describes how analog audio works. Believe it or not.

Here’s a video that actually demonstrates this.

@clearthinker 👍 good deal

@cleeds when I read that post I knew that is the battle not worth fighting. 
@erik_squires good suggestion!

@cleeds 

Wikepedia:    A Fourier transform (FT) is a mathematical transform that decomposes functions into frequency components, which are represented by the output of the transform as a function of frequency. Most commonly functions of time or space are transformed, which will output a function depending on temporal frequency or spatial frequency respectively. That process is also called analysis. An example application would be decomposing the waveform of a musical chord into terms of the intensity of its constituent pitches. The term Fourier transform refers to both the frequency domain representation and the mathematical operation that associates the frequency domain representation to a function of space or time.

You can read above that the Fourier Transform decomposes the signal.  The example given is the decomposition of the waveform of a musical chord.  That is exactly what I said.

In analogue audio, the waveform is not decomposed.

Clock error in a DA converter is the timing error in recomposing the analogue waveform from the decomposed waveform for expression by an analogue music system.  I am given to believe that it is impossible to remove clock error entirely.  Hence my comment that the pieces cannot be put together again correctly.

All the cheap oscilloscopes in the world cannot change this.  Nor is their definition fine enough to reproduce the results of clock error.

clearthinker

Wikepedia:    A Fourier transform (FT) is a mathematical transform ...

Oh, I understand what a Fourier Transform is, and that it's a theorem, not a theory. I understand both how it works with digital (conceptually) and I understand why the same principle applies to the squiggles in a vinyl LP. You appear to understand neither.

I am given to believe that it is impossible to remove clock error entirely.  Hence my comment that the pieces cannot be put together again correctly.

I understand that you hold certain beliefs. Digital audio is not intuitive - at least not for most of us - so it can take some understanding to reveal that belief and fact can be two different things.

Did you watch the video? it kinda blows apart your theory, doesn't it?

The reason this stuff is important is because digital audio is not perfect and if we want to improve it, we won't be successful by trying to remedy imaginary faults.