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TOPIC: import Biquad from minidsp to nanoAVR *solved*

import Biquad from minidsp to nanoAVR *solved* 1 year 4 months ago #20467

  • smygolf
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I just bought an nanoAVR and where copying over the biquad from the minidsp (used for sub) to the Nano.
The strange thing is that on the Nano the curve is different than on the mini dsp.
I havent recived the Nano yet but my idea was to copy the subs Biquad since they are Perfect!

Ex
biquad1,
b0=0.9993421913203764,
b1=-1.997652825342758,
b2=0.9983230183970904,
a1=1.997652825342758,
a2=-0.997665209717467

On the mini dsp that gives me [email protected] but on Nano it is [email protected]
I thought that biquads where universal, the biquad comes from REW.

Any suggestions or if someone could tell me what i have missed ;)
One more thing, to bad that copy/paste doesent work on Nano.
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Last Edit: 1 year 4 months ago by smygolf.
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import Biquad from minidsp to nanoAVR 1 year 4 months ago #20470

  • dreite
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The biquad coefficients you posted are different than those pasted into your miniDSP plugin in the photo.

Biquads are not universal and the coefficients will change depending upon Fs. (I suspect that's your issue here.)
The nanoAVR has different plugins with different sampling frequencies so you'll need to adjust your coefficients.

Dave.
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import Biquad from minidsp to nanoAVR 1 year 4 months ago #20473

  • devteam
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Like Dave already hinted, the sample rate difference is the issue here .nanoAVR is 96k while your miniDSP is most likely 48k.
Use the excel spreadsheet to modify the biquad to be 96k compliant.

DevTeam
MiniDSP, building a DIY DSP community one board at a time.
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import Biquad from minidsp to nanoAVR 1 year 4 months ago #20475

  • smygolf
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Thanks guys!!
I guessed it was something simple :)


*edit*
I noticed that i have wrong biquad on the pics, with the correct one its [email protected] instead.
Last Edit: 1 year 4 months ago by smygolf.
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