02-12-2003, 10:13 PM
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Moderator
Join Date: Aug 2006
Posts: 6,878
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Display Research Laboratory Releases Spectrum Analyzer For Pocket PC!
Music and audio software developer Display Research Laboratory unveils the HandDee Spectrum Analyzer (HandDee-SA) for Pocket PC. The HandDee-SA is a powerful tool for AUDIOPHILES to check speaker frequency response, tune-up Hi-Fi and room acoustics.
"HandDee-SA is a real-time spectrum analyzer for Pocket PC and Pocket PC 2002 PDA's providing smooth update rates of up to about 20 frames per second. Although loudspeaker systems are expensive equipment, buyers in the past cannot see for themselves the real performance characteristic of such systems. The HandDee-SA for the first time enables buyers to make informed choices on the spot by bringing their Pocket PC and a stereo cable."
The Display Research Laboratory web site has quite a bit of information about this application (Too much to post here). Visit them here to take a look!
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"My eyes are rolling back in my head so far I can see my grey matter bubbling and frothing from reading this thread....bleh." JD
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02-12-2003, 11:34 PM
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Sage
Join Date: Jul 2003
Posts: 713
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Pretty graphs, but will some of you audiophiles out there explain to me how hooking your PPC into a sound system with stereo cables will allow you to test the characteristics of the speakers? Wouldn't you be testing the quality of everything but the speakers?
Maybe I just don't get it.
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02-13-2003, 01:16 AM
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Pupil
Join Date: Nov 2006
Posts: 22
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Yes, this seems like a lot of power that can't actually be used reasonably. They speak of using the Pocket PC's mic, which is all well and good, except for the fact that all the microphones on all the Pocket PCs are only good enough to record voice notes. A spectrograph doesn't do me any good if the microphone can only record 10 kHz!
This is why I want to lobby some enterprising hardware manufacturer to make a CF or SD sound card. Preferably with variable level input so you could record from an external mic, guitar, stereo, or whatever. 
And THEN this kind of thing would make a LOT of sense!
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02-13-2003, 04:37 AM
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Pontificator
Join Date: Feb 2002
Posts: 1,023
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Considering the hardware limitations, I'd be interested only if this was freeware. :|
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02-13-2003, 06:12 AM
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Intellectual
Join Date: Aug 2007
Posts: 238
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Depends on how useful it is, if there was a way to hook up an external mic or other I/O, it would be a cool program to have. I wouldn't mind having a small spectrum analyzer to see the freq. response of amplifiers, our EE dept. bought a new spectrum analyzer last semester, $20,000, those things aren't cheap 
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02-14-2003, 04:38 AM
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Theorist
Join Date: Jul 2003
Posts: 298
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Well, if you need a review, let me know, as I'm buying it.  I have a $5000 digital hearing aid, and this would be an inexpensive way to program the different microphone modes. I downloaded the demo, and it's not only pretty, it seems to be pretty accurate. Not a "professional" spectrum analyzer by any means, but close enough for my purposes.
As for the PPC mic being limited to 10 KHz, my hearing aid only reproduces up to about 7.5 KHz anyway, so I don't need the 10-22 Khz range.
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Linear Mode
