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Old 14th August 2015, 03:09 PM   #1
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Default DCX2496 - WaveIo

with respect to various modifications around the DCX2496, I would be interested to also "mod" the digital input.
I would ask if you think, in principle, this system can work:

1) Removing the digital input chip (Cirrus CS8420).
2) output I2S (WaveIo pcb) => SRC input (AD1896)
3) output SRC (AD1896) => DSP input (ex CS8420 digital output)

Obviously this is just in general terms ... if the system was feasible, I hope to deepen the project with you.
I am open to any kind of suggestions regarding this matter ... it's not that long ago that I approached the digital audio world
Thanks a lot to everyone.
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Old 20th August 2015, 11:44 AM   #2
Mooly is online now Mooly  United Kingdom
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Moved to Digital Line Level.

Installing and using LTspice. From beginner to advanced.
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Old 20th August 2015, 12:35 PM   #3
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Post #86 of this thread has a possible solution to at least part of your request. It has been tested by a forum poster and found to work, but I never had the nerve to try it myself:

XMOS-based Asynchronous USB to I2S interface
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Old 21st August 2015, 04:18 PM   #4
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Thank you very much for the informations!
If I understood well the DSP chip can't receive direct I2S data, is right for you?
Another thing, the WaveIo can only output I2S data bringing depth and bandwidth of the source, this is right?!
Exemple: input: 48khz 24bit, same output.
If that is the case you need a SRC (of course with his right circuit and pcb) to provide the digital data to the DSP chip.
As soon as I can I will testing with a breadboard...
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