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Article #3966

Re: Computer Shopper Review...bad news for SBPro

#3966
From: Eric W Braeden
Date: Mon, 25 Jan 1993 19:31
27 lines
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Obviously somebody with test equipment is going to have to test the 
SBPro. I suspect that the SBPro CAN produce sounds greater than
2.6 KHz, but not record them. The real question is why is the recording
so limited in frequency. There is probably a bit more to it than the
possibility that they used a cheap ADC chip. 

Would somebody look at their SBPro and get the numbers off the ADC chip.
We should be able to trace this down.

Note that the telephone systems in the USA and Japan sample at 8 KHz
at 8-bit which would provide good reproduction of sounds up to 4 KHz.  
(There is more to it than this like mu-law encoding for cleaner sound.)
Since the phones bandwidth is limited to about 3.3 KHz this is fine.

The point is that the SBPro apparently can't even match telephone specs !!

Would somebody with test equipment please test this problem? If the problem
is real and not fixable, it sure eliminates the SBPro from the list of  
acceptable boards to record sounds....Let's track this down.

Eric


-- 
Eric W. Braeden                    | "Der Verstand war zwar praechtig
Ohio State University              | doch das Nuetzte am Ende nicht viel"
ebraeden@magnus.acs.ohio-state.edu | Peter Schilling   120 Grad    1983
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From: ebraeden@magnus.acs.ohio-state.edu (Eric W Braeden)
Subject: Re: Computer Shopper Review...bad news for SBPro
Message-ID: <1993Jan25.193148.14655@magnus.acs.ohio-state.edu>
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Date: Mon, 25 Jan 1993 19:31:48 GMT
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