Using Aurora for 3OA with Zylia microphone

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Oscar Björk
view post Posted on 6/10/2020, 10:32 by: Oscar Björk
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Hi! And thank you Angelo for the work with this software.

Im trying to get useful 3rd order Ambisonics IRs from my Zylia microphone using Aurora audacity for Mac.
I use a Neumann Kh310A Speaker for this that should handle 35Hz - 21.000Khz with ok quality.

- I have created a sweep of 20sec and also a inverse one in Audacity/Aurora.

- I have set upp a Reaper project that playback the generated sweep through my mixpre interface and recording it with the Zylia mic, output in reaper: 16channels 3OA.

- I then bounce the recorded 16 channels 3OA wav from Reaper and put it back in Audacity for deconvolution with the same (reversed) sweep that I generated.

If the deconvolution is successful a lot of weird things happens with the files sometimes there is two IR klicks in some of the files, and sometimes files are just empty, or with the sweep file still in it. If I got this correctly the Deconvolve plugin should calculate where the deconvolution begins itself (time of flight) so there is no need to sync automatically? I should mention that I'm quite new to this.
 
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7 replies since 6/10/2020, 10:22   383 views
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