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Old 21st April 2004, 03:36 PM   #1
sobazz is offline sobazz  Denmark
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Default Real time spectrum analyzer for PC?

Does it exist? I imagine such a program along with a proper signal generate capable of outputting a MLS signal or alike could be a great help when tuning active crossovers and eq filters.

The cheaper the better
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Old 21st April 2004, 04:34 PM   #2
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You might look at the one at http://www.trueaudio.com/
it will be hard to find one cheaper:-)
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Old 21st April 2004, 05:18 PM   #3
sobazz is offline sobazz  Denmark
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Wow! Looks very nice for the price tag.

But how could I do real time adjustments with this analyzer? I mean, what signal type should I use? Sweeps are no good.
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Old 21st April 2004, 06:06 PM   #4
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The best RTA I've used is SpectraPlus. I don't know the cost, and I imagine it's very expensive, but you can download a fully functional 30-day trail:
http://www.spectraplus.com/

Nice one,
David.
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Old 21st April 2004, 07:30 PM   #5
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Efficient Free realtime analyzer: Baudline for Linux

http://www.baudline.com/

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- Ask
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Old 21st April 2004, 10:47 PM   #6
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SIA's SmaartLive is a great program that includes many tools for testing both speakers and speaker systems. Its transfer functions give you more information than an RTF by actually displaying the differences on a graph. Its a great program. Pricey though ~$600.

Milo
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Old 28th February 2005, 10:17 AM   #7
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Quote:
Originally posted by askbojesen
Efficient Free realtime analyzer: Baudline for Linux
http://www.baudline.com/
I just discovered this tonight and was about to post something about it and then I though I better see if anyone else has mentioned it first.

Anyway, their description:-
Baudline is a real-time signal analysis tool and an offline time-frequency browser. It has a built in tone generation capability and it can play back audio files with a multitude of effects and filters. Designed for environmental analysis missions that range from modulation parameter measurements to searching for transient signals that go bump in the night, baudline combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.
Capture, analyze, measure, play.

My description:- ^100.
Unbelievable...

A good, fast Linux distro to go with it, that I am using (right now even) Yoper Linux Don't let the nutty name fool you; this is a clean, fast 100% 686 compiled distro, i.e.it only works on Pentium II upwards.
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Best-ever T/S parameter spreadsheet.
http://www.diyaudio.com/forums/multi...tml#post353269
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Old 28th February 2005, 10:50 AM   #8
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I use the True-audio RTA for continuous measurements (sine/pink/white signals) and 'Sample champion' for MLSSA measurements.

True-RTA is very easy to use, while sample champion requires more learning, but the combination of the two gives a lot of measurement capability for a relatively low cost.
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Old 28th February 2005, 12:59 PM   #9
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Does Baudline do log-frequency axis display yet? Last time I looked it didn't, which is a bit of a killer for typical audio work. It makes it virtually impossible to get a single-screen view of what you want to see. Amazing program in other respects, though.
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Old 28th February 2005, 06:28 PM   #10
stee-b is offline stee-b  United Kingdom
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Dunno if this is of any help : link

Not really used it personally but hey!

Steve
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