Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter - Page 147 - diyAudio
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Old 13th November 2012, 05:24 AM   #1461
AR2 is offline AR2  United States
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First check this out. Here you could see my speakers and amps, and some early version of my electronics that has much changed since:

Babelfishing by Mighty AR2
Qusp, please stop... you make me thinking... really. I have to admit - digital crossover will definitely sound better because I will have much less of a buffers in the way of signal and absolutely not a single cap. Here I have polystyrene caps and two or three buffers after each other forming filter. I just cannot do it again, start from scratch, or thinker with computer while I am playing music.
On another note, after some listening of the system, I have to say, it will be hard to improve much. I like what I am hearing so much, it is insanely great. I really do not know how much is possible to improve at this point.
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Old 13th November 2012, 05:33 AM   #1462
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soz, no more, I did mean what I said though, it sounds like you are getting excellent sound, best chill on that. i'm sure there are other areas of the system worth tinkering than the line level =) actually no on second thoughts, Passlabs quad mono power amps and the speakers are insane, so not much fun to be had modding there...cables? vibrational damping mods?, floating floor for the lounge? faraday cage? lol
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Old 13th November 2012, 05:51 AM   #1463
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soz, no more, I did mean what I said though, it sounds like you are getting excellent sound, best chill on that. i'm sure there are other areas of the system worth tinkering than the line level =) actually no on second thoughts, Passlabs quad mono power amps and the speakers are insane, so not much fun to be had modding there...cables? vibrational damping mods?, floating floor for the lounge? faraday cage? lol
For someone that did not had a chance to experience converting to asynchronous clocking at digital source line and eliminating or lowering jitter... that is one of the best improvement one could make. The difference in some cases is day and night. I experienced it first in Behringer digital crossover DCX2496. I did the mod there that replaced clock and turned the whole set up to asynchronous one. It improved the sound in such a way that is hard to explain. With Ian's FIFO board I cannot say how much it improved, since I did not listen without it much, but the sounds is so good I will have a hard time explaining. What is the most noticeable in my system is separation between instrument and the black cold dark noise floor. it is unbelievable experience. I have a friend from LA visiting and we spent majority of Sunday listening. His jaw was dropped most of the time. In his words, he just did not experience the sound like that in his whole life.
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Old 13th November 2012, 11:01 AM   #1464
Nikitas is offline Nikitas  Greece
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Phew! Loads of info in the two threads, this and the gb, still reading and trying to comprehend.....

Did anybody manage to implement a dac+fifo+info output on a LCD or any display?

and which dac boards are you people using?

I'm leaning towards AD1955 but I haven't found an implementation I like yet.
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Old 13th November 2012, 11:07 AM   #1465
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umm, you need only look on the previous 2 pages for one =)
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Old 13th November 2012, 11:08 AM   #1466
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Originally Posted by Odysseas View Post
Phew! Loads of info in the two threads, this and the gb, still reading and trying to comprehend.....

Did anybody manage to implement a dac+fifo+info output on a LCD or any display?

and which dac boards are you people using?

I'm leaning towards AD1955 but I haven't found an implementation I like yet.
A few have it working. None with info on LCD yet AFAIK. The spdif board is the only one with outputs at the moment, I have no spdif sources that I plan on using so ..... For my implementation I'm planning on doing something with LCD /display when the Si570 clocks arrive as it will provide isolated serial comms for feedback/control.
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Old 13th November 2012, 11:09 AM   #1467
qusp is offline qusp  Australia
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Originally Posted by AR2 View Post
For someone that did not had a chance to experience converting to asynchronous clocking at digital source line and eliminating or lowering jitter... that is one of the best improvement one could make. The difference in some cases is day and night. I experienced it first in Behringer digital crossover DCX2496. I did the mod there that replaced clock and turned the whole set up to asynchronous one. It improved the sound in such a way that is hard to explain. With Ian's FIFO board I cannot say how much it improved, since I did not listen without it much, but the sounds is so good I will have a hard time explaining. What is the most noticeable in my system is separation between instrument and the black cold dark noise floor. it is unbelievable experience. I have a friend from LA visiting and we spent majority of Sunday listening. His jaw was dropped most of the time. In his words, he just did not experience the sound like that in his whole life.
well I can tell you at least from my experience the fifo makes for quite an improvement over all but perfectly implimented dacs otherwise. though I must say Titan does a damn good job by itself
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Old 13th November 2012, 11:10 AM   #1468
Nikitas is offline Nikitas  Greece
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umm, you need only look on the previous 2 pages for one =)
!

I have to go through around 50 pages to reach the previous two from this one!!!
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Old 13th November 2012, 09:51 PM   #1469
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Si570 interest list:

1. bigpandahk
2. tagheuer
3. hochopeper
4. qusp (of course)
5. AR2 - definitely!
6. wktk_smile
7. hirez69
8. CeeVee - you bet!
9. number9
10. analog_sa - GB maniac
11. edbk
12. atom6422
13. misterrogers - Of Course!
14. NicMac - as usual!
15. Zoran 16. PET-240
17. Coolhead
18. Slartibartfasst
19. SYklab
20. Regland
21. Neb001
22. SPWONG
23. Greg Stewart (also of course!)
24. Vitalica
25. spm
26. Fridrik
27. ccliu
28. makumba1966
29. lindamar
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Old 13th November 2012, 10:01 PM   #1470
qusp is offline qusp  Australia
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Originally Posted by Odysseas View Post
!

I have to go through around 50 pages to reach the previous two from this one!!!
hmm, so you posted from the first page? I normally read the first page and the last few pages if I cant read the whole thing.
and if I need something specfic, I use the 'search this thread' feature (something I wish more people used, its not bad)

search for 'LCD display arduino' in 'search this thread' and there is a single result, which takes you to that page and several relevant posts and links.

all good but the above is more efficient than asking, see how long I rambled on without giving you a specific answer?
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