Changing Hard Drive in a Melco

[lyapounov]

(02-09-2022 07:57)simoncn Wrote:  Also, if all SQ improvements are caused by expectation bias, Donuk would not have found his new sound worse (because he was expecting it to be better). I am not denying that expectation bias exists but this does not exclude the possibility of real SQ improvements.

Expectation bias is not always one way. You expect a lot better, and there is no change. So you find it worse than your expectation.

Also, if Sound Quality can be put in math, and therefore becomes universal, Sound Perception is not. Your ear get used to, and I bet you can have different outcome whether you test A first then B, or the reverse.

Finally, let us not forget the electronic.

Unless I am wrong, the server sends some bunch of music via TCP, and the receiver gets the data, which owing to TCP protocol, is perfectly identical to what the original file is. Then it is up to the receiver and above all its DAC to recreate a waveform out of this.

I bet that if you look at the data that arrives at the DAC, it is exactly the same whether it comes from SSD or HDD. If it were not, then the sound distortion would be obvious, and would not be what people call "less clarity" or "bass less present", the usual statement of SQ, but rather something like cracks or pings, horrible glitch noises.

So if there is a difference, can someone explain where it comes from ? Is it that the disk in the server corrupts the electronic up to the DAC to the point of rendering two different analog signal from the same data ?

Just a genuine question.