Optical / SPDIF and Jitter measurements what can be audible to a perfect human ear with a clear mind and healthy level brain function ?

[Earwax]

I`m Researching the Topping E30 II lite and after reading and comparing the optical jitter measurements against the SMSL SU1 and Topping DX3 Pro plus there is a noticeable difference in the measured readouts..

What exactly are the jitter measurements is it harmonic noise that will have an effect musical harmonics ?

After only reading research, it appears to land on the fact that it will affect musical harmonics probably the finer more delicate possibly by adding to them altering them. ?

What is the acceptable level of jitter before it has any influences on delicate harmonics ?

images are from this forum,

Thank you for your time and assistance it is much appreciated !

 

[DVDdoug]

From what I've read jitter has to artificially generated to make it bad enough to be heard. Then it sounds like noise.

 

[kemmler3D]

To add on to @DVDdougs comment, real life jitter is almost always way too low to hear and mostly sounds like noise if you amplify it.

There is such a thing as correlated jitter which sounds pretty awful, but I'm not aware of any devices that have that problem IRL.

 

[MCH]

 

[MaxwellsEq]

Jitter may have been a problem 30 years ago.

 

[kyuu]

Unless you own a TV with digital outputs that have jitter bad enough that you're losing signal entirely (*cough*LG*cough*), it's really not something to worry about.

 

[antcollinet]

In the review you took that chart from the reviewer states "not likely to be audible though"


There is your answer.

 

[Earwax]

Likely is a definition of absolute fact ?

That's why I'm researching what level of jitter is not great....

Opinions are helpful but at times they just beat around the bush.

 

[DVDdoug]

That's why I'm researching what level of jitter is not great....

Here is a jitter experiment I found. I'm sure you can find more.

Just scanning the article I didn't see an "answer" but you listen for yourself. With all of these types of experiments, it's going to depend on the listener and the nature of the audio so I doubt there is a single-solid answer.

...I NEVER hear ANY "digital problems" unless it's a low-resolution (lower than CD), or a low-bitrate MP3, or if there is gross corruption or dropouts, etc.

Most problems are on the analog side, particularly speakers and acoustics.