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Downsampling for saving CPU

DSP related issues, mathematics, processing and techniques

Re: Downsampling for saving CPU

Postby Iainmf » Fri Jul 07, 2017 10:55 am

Actually, now that I think about it, it might be possible depending on the layout of your compressor. :D You could do calculate gain reduction every 'x' samples, as long as you are calculating before the envelope follower and your envelope follower is running at the sample rate. The envelope follower will smooth out the steps. Although the attack and release times will have to be long enough to smooth the steps.
Iainmf
 
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Re: Downsampling for saving CPU

Postby Iainmf » Mon Jul 10, 2017 5:31 am

Here is a band-limited hard limiter with the gain reduction calculated every 16 samples.
Attachments
undersample gain reduction 01.fsm
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