Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter - Page 261 - diyAudio
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Old 25th March 2013, 07:59 PM   #2601
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Quote:
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When timing is fixed downstream, opto is not a bad option as it gives galvanic separation. Do you suspect data loss?

Or are you playing a lot of hires making toslink impossible?
I am using only the Wave I/O via the backdoor I2S, as Ian recommended.
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Old 25th March 2013, 08:04 PM   #2602
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Sorry... your heading to that post was " S/PDIF interface board input selector"

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Old 29th March 2013, 10:32 PM   #2603
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Has anyone using the spdif board tested if the sonic importance of spdif cables has decreased with the fifo?
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Old 29th March 2013, 10:42 PM   #2604
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Cables still (of course) makes a difference.
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Old 29th March 2013, 10:46 PM   #2605
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Cables still (of course) makes a difference.
Why do you say 'of course'?
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Old 29th March 2013, 10:48 PM   #2606
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OK, if you are using it as input only, then it is out of play. Sorry, I also currently use it as s/pdif out - hence my answer.

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Old 29th March 2013, 11:24 PM   #2607
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So, at the input you hear no differences any more?

What about software players?
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Old 29th March 2013, 11:31 PM   #2608
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I saw a picture of Ians setup and noticed that he used the opto input. I have tried and refused it before. With the FIFO it was an improvement. I suppose due to the galvanic separation. I run my system with to Toslink and it has never been better.

My take on sw-players is that if they don't change information (i.e. they are bit transparent) they are sound wise irrelevant and become a pure usability aspect. This position has nothing to do with the FiFo and I would still have it if the fifo didn't exist.

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Old 30th March 2013, 07:44 AM   #2609
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Irrelevant, huh? Nice position, but is it purely philosophical, or is it the result of listening tests?

I am asking these questions, as much to my annoyance software players and USB cables continue to sound very different in my system, using or not the FIFO.

Per example Jriver 17/Foobar, asio, exa > fifo > 9018. There is galvanic isolation at the exa's outputs and so far i am not using Ian's isolator but will. There was a huge improvement in sound jumping from the freebie oscillators to Crysteks and also a very substantial one going to 45/49. Will probably try the Si570 today. Overall the sound is very good but alas, not immune to changes in the source.
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Old 30th March 2013, 08:38 AM   #2610
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Quote:
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I am asking these questions, as much to my annoyance software players and USB cables continue to sound very different in my system, using or not the FIFO.
I would love to see your ABX test logs.
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