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I2S from a PC, Firewire or ethernet?
I2S from a PC, Firewire or ethernet?
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Old 7th October 2009, 03:20 AM   #11
SoNic_real_one is offline SoNic_real_one  United States
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USB 1.1 with native drivers goes only to 16/48. USB 2.0 has no public drivers and the proprietary ones go to 24/96. Issues as high jitter are not uncommon.
Ethernet without a dedicated driver... I don't know if it is a good idea.

The only "cheap" solution is FW. Now, where do you get those 24/192 files is everybody's guess (I personally have a hunch that are only upsampled files).
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Old 8th October 2009, 03:12 PM   #12
Nazar_lv is offline Nazar_lv  Europe
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good solutions will be sound cards with Envy24, very cheap solution VIA Tremor (SPDIF 24/192) after reprogramming EEPROM +one i2s out
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Old 8th October 2009, 10:15 PM   #13
gooki is offline gooki  New Zealand
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Can the Envy24 be modified for i2s input?
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Old 8th October 2009, 10:35 PM   #14
Nazar_lv is offline Nazar_lv  Europe
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envy24 has i2s input
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Old 8th October 2009, 11:59 PM   #15
5th element is offline 5th element  United Kingdom
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Quote:
Originally Posted by Nazar_lv View Post
envy24 has i2s input
I2S input I2S output all over the place.

All the inputs and outputs are 'slaved' you could say together, in that they will all switch to work at one sample frequency - so you cant for example have an input working at 96khz and an output going at 192.

It's easy enough to find the I2S clocks on the cards with the ENVY chips, I've done it with great success.

I buffer the I2S with some logic , although this is for protection of the sound card more then anything else, the DAC/ADCs I've built are housed inside the PC case.

The buffer has a decent output current so I'd imagine it'd be fine driving cables over a distance.
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Old 11th October 2009, 11:10 AM   #16
tritosine is offline tritosine
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wow... this i2s thing looks to be the next step in diy edutainment... How plausible, all these manufacturers are dumb, we just wire i2s, hell, saw it in some comic book, batman did it .

Besides, how old is that envy24? 8-10 yr? Using desktop PC with 40cm wires for i2s? Thats a joke or something? I made a hole in my wall , even my wall is wider than 40cm.

Last edited by tritosine; 11th October 2009 at 11:13 AM.
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Old 11th October 2009, 01:03 PM   #17
tritosine is offline tritosine
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Old 11th October 2009, 01:13 PM   #18
khundude is offline khundude  Canada
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Quote:
Originally Posted by tritosine View Post
wow... this i2s thing looks to be the next step in diy edutainment... How plausible, all these manufacturers are dumb, we just wire i2s, hell, saw it in some comic book, batman did it .

Besides, how old is that envy24? 8-10 yr? Using desktop PC with 40cm wires for i2s? Thats a joke or something? I made a hole in my wall , even my wall is wider than 40cm.
If you are happy with the way the crap sounds from the stores, why are you on DIYaudio? OK cinic... I already have I2S from my PC with an ESI Juli@ soundcard and it is a rather noticable improvement over the S/PDIF. I was hoping to find a solution with an outboard PS. Maybe I should have asked if anyone knows how to mod a Juli@ for outboard power? Also, I2S lines in my set-up are 10cm. However, I did not notice an improvement over 20cm ones. The cables can be 100m long with the right buffer.
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Old 11th October 2009, 01:17 PM   #19
tritosine is offline tritosine
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Im goin to try these :
http://tools.asix.net/img/mu_dip2soic18_750.jpg
they make it in every size, And I did buy this FW card , to mod. Also found this adat IC to bypass.

Last edited by tritosine; 11th October 2009 at 01:21 PM.
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Old 11th October 2009, 01:20 PM   #20
khundude is offline khundude  Canada
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Quote:
Originally Posted by tritosine View Post
the need for 192k playback is as artificial as it gets.
Firewire is good, but only recently (~2006) .
USB is not good at all, flawed because cable is too short (or what)


So you dont want to use 192k to oversample in-the-box, I guess the need is artificial. FW gives 192k tho (if the chipset is good). Cheaper than 200usd is possible.
I don know no modding guide for such soundcard but Im about to mod one myself , I just took it apart today. I2s wont be a simple thing, 'wires' arent good for this at all.


48k, 96k, 192k, sound great when they are recorded that way. I have a few of these in high and low res and through the Juli@ straight I2S the high res sounds like vinyl without the scratches. The low res upsampled to 192k sounds bad in comparison.

I was hoping for an ethernet solution. I read about one here before in regards to the Buffalo DAC, but I cannot find it. If it only was going to cost me $100, I wanted one for my laptop too.
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