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The cutoffFreq value of IIRInterpolator

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Thu, 07/03/2025
4:57am
yong.li_14167
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The cutoffFreq value of IIRInterpolator

I use IIRInterpolator object . The input Sample Rate is 12000, factor is 2. so the output Sample Rate is 24000. Should  the value of cutoffFreq  be 12000 *0.5 /2 or 24000 *0.5/2 ?  Should the value of cutoffFreq be lower than 3000 or 6000?