24/192 ADC to I2S IC's?? - diyAudio
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Old 7th July 2011, 02:58 AM   #1
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Default 24/192 ADC to I2S IC's??

Can anyone recommendations for a 24/192 ADC to I2S solution???
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Old 7th July 2011, 03:14 AM   #2
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What performance level (i.e. how many real bits) were you wanting?
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Old 7th July 2011, 11:15 AM   #3
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WELL>....I guess that is a question now isn't it. I don't know how to answer that. I want to be able to record 24 bit 192Khz audio files. I guess my choices are 24bit and 32bit?? what are the proc and cons of each?


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Old 7th July 2011, 11:48 AM   #4
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The reference to 'real' bits was asking how low noise do you want to have? Noisy ADCs are cheaper than quiet ones. A true 24 bit ADC would have noise down around -140dB which is AFAIK unattainable with present day technology. Even if an ADC puts out 24bits, its very likely the bottom 4 bits at least will be essentially random noise.

If you say what source you're wishing to record I could perhaps home in a bit better on your requirements here.
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Old 7th July 2011, 12:01 PM   #5
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Ahhh ok. Mostly this will be record transcription, some original recording(Live) etc.


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Old 7th July 2011, 12:17 PM   #6
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This will probably foot the bill very nicely then :

PCM4222 Evaluation Module (EVM) - PCM4222EVM - TI Tool Folder
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Old 7th July 2011, 03:57 PM   #7
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I think is easyer to buy an audio ADC product then try to build something like that. Good ADC performance is not easy to attain.
I like the price/performance of E-MU product line, from E-MU 0204, E-MU 0404 (113dB with AK5385) to E-MU 1616 (120dB with AK5394A).
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Old 7th July 2011, 04:58 PM   #8
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You have frex CS5381 ADC but the PCM4222 seem to measure somewhat better.

DIY CS5381 Analog-to-Digital converter PCB Group buy
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Old 8th July 2011, 11:58 AM   #9
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wow much more complicated to get audio to Digi i see! sounds like there should be more DIY stuff on this end!
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Old 11th April 2013, 12:00 PM   #10
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Hi, i need to do the same, any update on this ?
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