Results of testing DACs. Multi-bit can't match linearity of DS DACs.
Interestingly, however, most DS DACs today are multi-bit (not 16-24 or beyond, but rather 5 or 6).
Results of testing DACs. Multi-bit can't match linearity of DS DACs.
Why do you think so?
Getting 4, 5, 6 or even 8 bits to have excellent linearity is rather easy.
Its the signal processing that makes the DS DAC a DS DAC. The fact that it can be done using several bits is another matter and has advantages with post filtering and linearity.
Beyond 16 bits is the real challenge. Even using tricks there has its limits.
AFAIK there are no off the shelf pure 1bit DS DAC chips.
I do remember a SONY DAC chip that was 1 bit at the time Technics had MASH, a 4 bit DS alike chip that some thought MASH was a 1bit DAC. (I was working at Technics at that time)
This was decades ago (around 1990). This was at the same time 18 bit DACs were becoming the rage.
The CS4334/5/8/9 family is still around. But those are a basic 8-pin stereo DAC first introduced in 1998, 23 years ago, making them the longest-serving family of audio DACs I know of. No idea who still uses these, I guess it's only the SO-8 package that kept them alive for this long (the CS4344/5/6/8 family with a multibit design comes in 10-pin TSSOP).AFAIK there are no off the shelf pure 1bit DS DAC chips.
What is a settling time for modern cheap "millibit" DACs?That technology maxed out. The folklore about multibit superiority lives on however.
that all-in-one delta-sigma DAC chips had finally triumphed
If the DAC can't reproduce a single pulse well, it can't accurately reproduce digital audio (sample stream) either.
What is a settling time for modern cheap "millibit" DACs?
If the DAC can't reproduce a single pulse well, it can't accurately reproduce digital audio (sample stream) either.
Music is a random signal, not a sine wave.Audio is band-limited, as is the ear, but a pulse is not.
Why digital oscilloscopes not use sigma-delta ADC? ry Waveform GeneratorIt's cute when someone tries to tell us "how things work".
Do you understand Shannon-Nyquist? And Fourier? See, you're on a forum where people do, so this sort of ignorant argument won't get you far.Music is a random signal, not a sine wave.
The pulses (samples) must be independent of each other.
The weak results of delta-sigma converters in real tests (music signal) indicate the imperfection of your methods and criteria.
For example: https://www.sciencedirect.com/topics/engineering/delay-distortion
Commercial digital music is anti-piracy demo version of vinyl.It's cute when someone tries to tell us "how things work".
I suppose switching from "ignorant' to "irrelevant" is progress. Also, you apparently don't know the difference between dynamic compression and data compression. But don't let that stop you.Commercial digital music is anti-piracy demo version of vinyl.
4-6 bit "enough for anybody."
Hi-res over-compresssed than mp3:
Credibility is of concern only to enthusiasts.
69 dB real accuracy for "24 bit" "±0.005 dB" "professional" audio devices is too low.See, you're on a forum where people do
mp3 compression (lossy) does not affect dynamic range (volume). Only anti-piracy mastering.difference between dynamic compression and data compression.
Don't let complete non-understanding slow you down, you're on a roll!69 dB real accuracy for "24 bit" "±0.005 dB" "professional" audio devices is too low.