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- From: ja51359@uxa.cso.uiuc.edu (axelrod)
- Newsgroups: comp.sys.amiga.audio
- Subject: Re: Audio Samplers
- Message-ID: <BzKqs4.Cnn@news.cso.uiuc.edu>
- Date: 20 Dec 92 20:12:03 GMT
- References: <1992Dec18.081841.29669@u.washington.edu> <doug.04q0@dsij.uucp>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Lines: 39
-
- doug@dsij.uucp (Doug Johnson) writes:
-
- >In article <1992Dec18.081841.29669@u.washington.edu>
- > maji@carson.u.washington.edu (Ji Ma) writes:
-
- >>My question is what is best 8-bit sampler can do?
- >>cassette deck quality
- >>or even lower
-
- An 8-bit sampler can do far better than a cassette deck in terms of fre-
- quency response, but about the same in terms of signal to noise ratio/
- dynamic range.
-
- >>One thing I noticed is that it sample little better on sound source from
- >>cassette deck than from CD. Why?
- >>Any idea?
-
- The reason you are probably getting better results from a cassette deck
- is because a cassette deck is mostly bandlimited to about 12KHz, which
- would require you to sample at 25KHz to have a decent signal to aliasing
- noise ratio. On the other hand, CD's are bandlimited to 20KHz, and you'd
- need to sample them at 40KHz minimum. You can get around all of this if
- you have a decent analog low-pass filter before you sample, but I don't
- know where to get one.
-
- JEff
-
-
- > See above.
-
- >>Thanks
- >>
- >>Maji
-
- >--
-
- >Doug Johnson * Q: What do you call a tornado with long hair
- >Windsor, ON * and boils?
- >Canada * A: A cysted twister.
-