John Curl's Blowtorch preamplifier part II

[1audio]

Jitter

I'm confused. Most of what I have read suggests delta sigma architectures are less sensitive to jitter. I also think that discussing jitter as a single number is very misleading. Can you point to the references so I can better understand why a multibit DAC would be less sensitive?

 

[qusp]

I also think that discussing jitter as a single number is very misleading

as do I, I suppose its similar to distortion and impedance in that regard, different at different frequencies and composed of several elements, but often reduced to a single headline spec.

 

[jcx]

http://www.iet.ntnu.no/courses/fe8114/files/Report_audiodac.pdf

This report is the end result of a PhD-level course intended to provide insight into challenges
and solutions in audio DAC systems design. It will review the concepts relevant to this
application and provide the reader with a system-level overview as well as insight into
fundamental principles and relations...
...This report will begin with an introduction to challenges surrounding jitter and jitter
suppression...

 

[qusp]

thanks jcx

 

[bcarso]

http://www.iet.ntnu.no/courses/fe8114/files/Report_audiodac.pdf

Very nice reference jcx.

 

[qusp]

ahh, i've downloaded this before, have you linked this before mate?

 

[jcx]

yes

 

[qusp]

thanks anyway, i'm probably better placed to understand it in detail now, so worth another look anyway

 

[jan.didden]

Heads up: EDN is running Bruno's F-word article from Linear Audio: Negative feedback in audio amplifiers: Why there is no such thing as too much | EDN

Some predictable reactions.

jan

 

[bcarso]

Heads up: EDN is running Bruno's F-word article from Linear Audio: Negative feedback in audio amplifiers: Why there is no such thing as too much | EDN

Some predictable reactions.

jan

I was pleased to see that today. Haven't seen the reactions yet

 

[jacco vermeulen]

All because Bruno was not insulting enough, imo.


D-S, S-D, PCM, references, howcome my head stills feels like a melon.

 

[Bonsai]

Interesting hypothesis/observations on why cables sound different - but especially interesting is the discussion around SSL's VCA's and how they solved the issue.

 

[SY]

Some predictable reactions.

It's the usual sad stuff: "You're wrong! I make money from this and have testimonials! That's better than evidence and analysis!"

How can anyone respect someone like that?

 

[jacco vermeulen]

I think it's morse code.

 

[jan.didden]

It's the usual sad stuff: "You're wrong! I make money from this and have testimonials! That's better than evidence and analysis!"

May I quote that?

 

[SY]

You know where to send the royalty checks.

 

[Bonsai]

Interesting hypothesis/observations on why cables sound different - but especially interesting is the discussion around SSL's VCA's and how they solved the issue.

:0 I forgot to post the link and now cannot find it. Damn!

 

[fas42]

Perhaps this: Loudspeakers: Effects of amplifiers and cables - Part 6 | EE Times ... ?

 

[Bonsai]

Ahh. Your Google search skills are better than mine. Thanks.

 

[jacco vermeulen]

Mr Russell,

my sincere apologies, I was so anxious to assume you lost some marbles.

(the caring strategy, can't have this corner become dull)