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uclaros

Cheap SBlive ADC for 4 inputs!

134 posts in this topic

OK, just tried the tarballed version of eagle, and it worked.

Got the files opened, and shit, I can't wait to get started!

Kind of drives me nuts in a way, this interfacing seems so simple once I look at it, but I just didn't know how to do it on my own!

I really need to study some EE (Electrical Engineering) and really get a grasp on these things, I love all of it, I need to truly undersand it.

Thanks again!

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hehe ;)

the PCB is simple! except the Small SO package :-/

I think when we finished the design of the board, I can make some board with the pcm solder on it, this way it will be easier!

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if the optical out is and SPDIF, then it's "easy" to make a spdif input to your amp! see this link :

http://sound.westhost.com/project85.htm

Thanks for this tip however it is only to Stereo & not 5.1

There is a mention of modifing it to work with DTS but thats probably a bit beyond me :'(

Thanks again

LO

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I know it's quite newbee question, but how can I connect an unbalanced output (mono) to the balanced input provided by the ADC??

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you can put the -input and GND togehter, and the +input with the signal of the unbalenced :) I make this to test the board and it's work ;)

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hey you guys are awesome, I've been researching parts and stuff to build a cheap adc possibly to adat interface.And I check in on the midibox site and its been here all along.

Anyway I was wondering if you all could let me know where to get the eagle files talked about earlier in this thread. And any text info I can dl.I am not a programmer or an engineer but only a musician on a budget, with a will to learn.Any thing I might can help you all with let me know. Testing or anything. I am purchasing Sblive cards as I am writing this via ebay.

So can I get 8 dig. i/o per card or 16? Also is the highest resolution 16/44.1 or 24/96?Thanks and I look forward to (hopefully) contributing something to this project. ;D ;D ;D ;D :-X

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I'm going to work on the website this afternood! so I will put the eagle file on it!

FOr the quality, I read that the emu10k1 can handle 24bit/48kHz data... I don't know how this is handle on the driver side...

There is 14 mono inputs, but we will use only 8. And I think 14 outputs (1 I2S, 4 SPDIF...have to check this)

;)

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great...be sure and post the web address asap...

oh yeah...What is I2S?

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Thanks so much, gillesdeshays. I appreciate you guys taking time to answer my, newbie, questions.You all have helped me so much too understand more about electronics,programming,analog and digital audio. I hope someday I can return the favor.

keep up the good work ;D

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heyhey...

A little update, i etched the quad ADC brd Pilo and Smash put together and I stuffed 2 of the 4 PCM chips. Needless to say they work :)

Great work fellaz, this is gonna expand into one mighty project I can see :)

I wonder if we could ever get near to apogee conversion quality somehow - obviously not with these 10k chips but mebbe sum1 has a few tricks up they're sleeve :P

Best

Dan

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Hey Dan, where did you get the scematics and layouts for the quad adc. I'm dying to have a go at it, and my sb live will be here in a few days. 8)

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I can send you the file, but I think before more people make it, dan should test it with 4 ADC, and see if everything is fine. I'm going to make mine soon, so I can test it too ;)

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hey thanks pilo, go ahead and send it ot me so I can start getting parts ready and when I see everything is ok I'll build.

I will send you a private message with my email addresss.

thanks again.Maybe i can help test it.

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Hey D2K !

make some picture of the quad ADC ! ;D

Pilo : what about ya website ? 8)

I had an idea for the "Octo ADC DAC" .... something modular ... in a little rack .....with internal power supply or external ....

and some modules (1*2 Ch ADC, 1*2 Ch DAC, ADAT, SPDIF converter .....

What do you think about that ?

Personal message: Sorry i have many problems with my internet connexion since  1 week .....  but you can reach me by mail ........  

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hehe GREAT!!!

nice to see you back Gilles!!!!!

look at the RME ADI converter... maybe we can have something like that (have to work on the s/mux thing, but I know how we can make that with cheap component... need to read some book)...

Well... if anyone wants to help with the web site, no problem :)

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Well... if anyone wants to help with the web site, no problem :)

i'm here Pilo ! ;)

We have to see if my modular idea can be interresting enough !

My idea is to create a simple rack which can be upgrade with some modules ...

For all : please gimme your felling about that .....

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Hey Gilles!

yeah, i'm down with the modular idea :) so we can use an external rackmount box and connect it to the sblive via a 25pin D type cable...

Peesh

Dan

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yes!!! modules!!!! hehe!!! I think it will be the more interesting way for every body!!!! :)

yes I know, I should be sleeping... :D

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For the external rack, what were you thinking for interconnect? Going to try something with ADAT format lightpipe, or 4x i2c lines, or what?

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for the external Rack : ADAT lightpipe and CAT5 (RJ45) cable ;) this is an idea from SmashTV and I think it may be a very interesting one! But you can have both adat lighpipe and CAT5 cable :)

Maybe other output like TDIF?

and analog ouput :) we have to work on the DAC board :)

But any idea are welcome!

I think the only thing important here is that we many people intersted in it! can't do this alone!! :)

thanks all!! :D

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exactly Pilo !

all of you are invited to give us idea !

for the Boox to PC connexion I was thinking of a SUD 25 ...

the cheaper solution ! but i have to make some test to see if it's ok with spdif + i²s in a simple multiwire + shield cable ......

Other think .....i think it's better to use i²S outputs the the SPDIF .... so priority to I²S ...

post here ALL your suggestions ... even if it seems to be crazy .... ;)

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