24/192 ADC to I2S IC's??

Zero Cool · 7th July 2011, 02:58 AM

Can anyone recommendations for a 24/192 ADC to I2S solution???

abraxalito · 7th July 2011, 03:14 AM

What performance level (i.e. how many real bits) were you wanting?

Zero Cool · 7th July 2011, 11:15 AM

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?

Zc

abraxalito · 7th July 2011, 11:48 AM

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.

Zero Cool · 7th July 2011, 12:01 PM

Ahhh ok. Mostly this will be record transcription, some original recording(Live) etc.

Zc

abraxalito · 7th July 2011, 12:17 PM

This will probably foot the bill very nicely then :

PCM4222 Evaluation Module (EVM) - PCM4222EVM - TI Tool Folder

SoNic_real_one · 7th July 2011, 03:57 PM

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).

Tazzz · 7th July 2011, 04:58 PM

You have frex CS5381 ADC but the PCM4222 seem to measure somewhat better.

DIY CS5381 Analog-to-Digital converter PCB Group buy

Zero Cool · 8th July 2011, 11:58 AM

wow much more complicated to get audio to Digi i see! sounds like there should be more DIY stuff on this end!

Rixsta · 11th April 2013, 12:00 PM

Hi, i need to do the same, any update on this ?

7th July 2011, 02:58 AM	#1
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	24/192 ADC to I2S IC's?? Can anyone recommendations for a 24/192 ADC to I2S solution??? __________________ It's not about what you can BUY...It's about what you can BUILD!

7th July 2011, 03:14 AM	#2
abraxalito diyAudio Member Join Date: Sep 2007 Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though... Blog Entries: 62	What performance level (i.e. how many real bits) were you wanting? __________________ When a measure becomes a target, it ceases to be a good measure. C.A.E. Goodhart

7th July 2011, 11:15 AM	#3
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	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? Zc __________________ It's not about what you can BUY...It's about what you can BUILD!

7th July 2011, 11:48 AM	#4
abraxalito diyAudio Member Join Date: Sep 2007 Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though... Blog Entries: 62	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. __________________ When a measure becomes a target, it ceases to be a good measure. C.A.E. Goodhart

7th July 2011, 12:01 PM	#5
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	Ahhh ok. Mostly this will be record transcription, some original recording(Live) etc. Zc __________________ It's not about what you can BUY...It's about what you can BUILD!


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7th July 2011, 12:17 PM	#6
abraxalito diyAudio Member Join Date: Sep 2007 Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though... Blog Entries: 62	This will probably foot the bill very nicely then : PCM4222 Evaluation Module (EVM) - PCM4222EVM - TI Tool Folder __________________ When a measure becomes a target, it ceases to be a good measure. C.A.E. Goodhart

7th July 2011, 03:57 PM	#7
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	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).

7th July 2011, 04:58 PM	#8
Tazzz diyAudio Member Join Date: Jun 2007	You have frex CS5381 ADC but the PCM4222 seem to measure somewhat better. DIY CS5381 Analog-to-Digital converter PCB Group buy

8th July 2011, 11:58 AM	#9
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	wow much more complicated to get audio to Digi i see! sounds like there should be more DIY stuff on this end! __________________ It's not about what you can BUY...It's about what you can BUILD!

11th April 2013, 12:00 PM	#10
Rixsta diyAudio Member Join Date: Feb 2004 Location: Barrow-In-Furness, Cumbria	Hi, i need to do the same, any update on this ? __________________ www.Rixsta.co.uk Free music recorded by me/DIY pics+ebay-shop, amps=Zen V4, Zen-lightenment‎, Jean Hiraga 20w, F5

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