Clicks and pops at the end of loop

zarby's icon

Hi,

i record a loop and when play it with groove object i have a click noise when the loop restart.
Does someone have an idea to eliminate this?
merci
laurent

James Corley's icon

The two ways I can think of are:

1. @loopinterp 1 - will interpolate the start and end of the loop
2. Create a windowing function - The sync output of groove~ can be used to sync up a windowing function to the loop. Below is an extreme example of windowing using a triangle function, however for eliminating subtle click noises the ramp from 0. to 1. can be very short, look into things like hanning and hamming windows.

Max Patch
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Source Audio's icon

In first place apply fade in / out before recording.
Even better crossfade loop points while recording.
But that is a bit higher looping math...

zarby's icon

ok thank you that's help me
Laurent

Jaky's icon

you could also use a function or look at the classic grooveduck ...
or cycle, search the forums, there are 20 years of msp on this ;-)

Max Patch
Copy patch and select New From Clipboard in Max.