Audacity Forum

I am new at this forum and not so familiar with Audacity (vs 2.4.2) and my english is not so good.
My problem is the records, i made in the past, gave disturbing crackling in a regular way. Someone told me to use Audacity to filter these cracling out.
I have tried several effects but have no idea what i am doing. I attached a sample of my problem in WAV. If it is possible a step by step solution would be very helpfull.
PS: The lenght of the record should not be changed.

Luckyluke1945 wrote: ↑

Thu Feb 18, 2021 4:32 pm

I attached a sample of my problem in WAV.

That is just noise.

I'll tried the Noise Reduction Effect but not only the crackling sound is less but also the motorsound of the camper. I meant to get rid of the ticks/crackling(higher frequens) what is superimposed at the sound of the motor

Luckyluke1945 wrote: ↑

Fri Feb 19, 2021 4:51 pm

e Noise Reduction Effect but not only the crackling sound is less but also the motorsound of the camper. I meant to get rid of the ticks/crackling(higher frequens) what is superimposed at the sound of the motor

OK, so you can try this:

1) Select a few seconds of your crackling motorsound.
2) Select Effect > Nyquist > High Pass Filter > 400 Hz > 24dB Rolloff > OK
3) Effect > Built-in > Noise Reduction > Get Noise Profile
4) Undo > High-Pass Filter
5) Select All
6) Effect > Built-in > Noise Reduction > OK

I hope this helps. (Why does this work?)