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 Post subject: Digital Sampling
PostPosted: 19 Nov 2011, 10:19 
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Joined: 04 Jun 2008, 20:59
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Location: Arizona, USA
Hi Everyone, I would like some information if you please. As an analog guy digital sampling is an area that I have not yet gotten into (yet). My question regards external analog to digital interfaces. Many are USB but need not be. How can a device with 44KHZ DACs (or ADCs as the case may be) sample music or anything for that matter at say 96K or 192K. It would seem to me that one of two things would occur, either it would have to store the signal and process it off line or not be able to do it all. :|

Your thoughts........

Good listening
Bruce

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 Post subject: Re: Digital Sampling
PostPosted: 20 Nov 2011, 15:54 
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Joined: 04 Jun 2008, 20:59
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Location: Arizona, USA
Hi Everyone, I can't believe that no one has an answer for this :shock:

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Bruce

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 Post subject: Re: Digital Sampling
PostPosted: 20 Nov 2011, 22:04 
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Joined: 28 May 2008, 21:53
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Location: Winnipeg, CANADA
Hi Bruce, what product are you looking at? Sounds like they are up-sampling to a higher bit rate after the ADC with a sample rate converter (SRC).

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 Post subject: Re: Digital Sampling
PostPosted: 20 Nov 2011, 22:30 
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Hi Gio, Devices that take an audio signal and convert it to digital and then to usb for a PC. It seems like most have 44K ICs, but can sample at rates up to 192 and sometimes higher rates. It seems to me that the max you could sample the signal at is the max the chips can do. Everything after that would not seem to be strictly speaking sampling of the source. Maybe I'm missing something here or just dense. :?

Good listening
Bruce

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 Post subject: Re: Digital Sampling
PostPosted: 21 Nov 2011, 18:41 
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In that example, the audio is converted to digital using the ADC in this case at 44.1kHz. An SRC can then be used to change the sample rate. But this is not the same as doing the ADC at a higher sampling rate. For a true high rez rip I would suggest getting a unit with a better ADC.

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