If I were you I’d take it as advice against stupid point scoring modes of discussion you seem to be engaging in.
Either make your point clearly in one post or move on. Either way, I’ll not be engaging with you further.
-
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
Denon DCD-900NE (CD Player)
- Thread starter NTTY
- Start date
Either make your point clearly in one post or move on. Either way, I’ll not be engaging with you further.
Timmy
Active Member
- Joined
- Aug 3, 2024
- Messages
- 157
- Likes
- 103
Well – the point is, that as soon as an analogue signal has been processed from digital, the DA conversion is complete. How can there be any reasonable doubt about it?!
Any further treatment of the resulting analogue signal, may it be necessary or not, is not part of that conversion. Instead, it may rather be evidence to the fact that the precedent conversion process has some basic flaws.
The goal for the coming future now has to be to develop a DA conversion that is free of any noteworthy flaws. AI may be of some help to reach that goal.
May I suggest that your point is irrelevant: the low-pass reconstruction filter (what you name the further treatment of the analogue signal) is necessary not because of the digital nature of the input signal, but because the input signal is also a sampled signal. An analogue low-pass reconstruction filter would also be necessary if the input signal had been a sampled analogue signal.
Flaws in the DA conversion process have been corrected for decades using sigma-delta techniques, which overcame the practical impossibility of building high-precision switched resistors PCM converters.
OP
- Thread Starter
- #84
It’s because you don’t understand in full the theory nor the practice of A/D and D/A. So you’re imagining a problem and a solution, but none exist in real life.
I recommend you read The Data Conversion Handbook from Analog Devices. Chapter 2 is good to understand the fundamentals.
Last edited:
ChatGPT is being trained primarily by mushy people, so this is to be expected.
Timmy
Active Member
- Joined
- Aug 3, 2024
- Messages
- 157
- Likes
- 103
Which seems to be some 20 years old – while I was merely talking about how DACs may be improved in the future. Don't you understand that this is not the same?
OP
- Thread Starter
- #87
Which means you did not read. And I understand that you don’t get it, and worse you don’t want to.
And 20 years old, or (more than) 200 years, does not change the interpolation theories and their well known applications, in particular to reconstruct analog signal from discrete samples. Wadia, back in 1990, used a Langrage (high oversampling) interpolator to reconstruct the analog signal, which somewhat converges with sinc interpolation in use in nearly all ADCs and DACs. Nothing new, nothing to solve because there's no problem here.
To be honest, many people have been trying to help you for pages, but you’re not interested. So best is to end this discussion.
Last edited:
OP
- Thread Starter
- #88
Stop, please. You’re not here to learn or interact with curiosity/interest. As @antcollinet said earlier, I won’t be engaging with you further,
This is what stupid prizes look like.
He just got a few bonus stupid prizes and I have a hunch he won’t be replying to this thread going forward.
Similar threads
