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Old 26th January 2016, 11:43 AM   #1
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Join Date: Jan 2016
Default SEARCH TUTORIAL : sigmastudio + rew


i did the diy dsp from freeDSP | An Open-Source Low-Budget Audio DSP witch is programmable with sigmastudio.

i want do build up a 2.1 system with my existing speakers/ amplifiers and this dsp.

is there a tutorial out witch shows how to optimize a subwoofer by measuring it with rew or another measuring software and import these meassurings to an equalizer in sigmastudio?

thanks for help,

subwoofer is a closed cantoon gls50 (30 cm diameter), dsp is working !
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Old 27th January 2016, 07:47 AM   #2
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Join Date: Oct 2014
I used ARTA successfully to measure the impulse response:

- note the sampling rate (44.1 or 48 kHz)
- export impulse response as MLSSA (File --> Export)
- open in editor and delete the first three lines --> save
- import in SigmaStudio (AutoEQ) as impulse response and state sampling rate
- you might need to deactivate "apply windowing"
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Old 28th January 2016, 02:02 PM   #3
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thank you,
works fine now!
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Old 25th April 2016, 03:52 PM   #4
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Join Date: Mar 2008
Location: Portland OR

Could you post a working impulse response file? I've found that SigmaStudio is quite fickle with importing of file types. I've written a simple Python script to convert FR graphs to an acceptable format for SigmaStudio. Unfortunately I do not have a sample Impulse response graph to do the same.

I use the FR method for AutoEQ and this seems to work. Unfortunately SigmaStudio tries to initialize the window object even with using FR method and I get an exception thrown every time I toggle through the windows. It's incredibly annoying. I'd be interested if someone else has tried the FR method for AutoEQ in SigmaStudio 3.12.4 on a windows 8 machine and has seen a similar error?
"The most powerful drive through the ascent of man is pleasure in his own skill." Jacob Bronowski
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