First off, Welcome to the Forum TiLucBeatz !
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TiLucBeatz wrote: ↑Mon Jul 20, 2020 7:51 am
I have a little problem,
when I make a melody on lmms I hear a noise at the end of each note, as soon as a note ends I hear a "tac". I don't know how to remove it.
help me please.
That is called
clicks ao
pops
They come from either starting or terminating a sound away from 0 dB
You can see that illustrated here:

The wave-form (red) will creates clicks/ pops unless it is either starting or terminating in the purple points!
But luckily we have two methods to avoid these
artefacts
Both need you to use an
envelope
Read:
https://lmms.io/wiki/index.php?title=In ... .2FLFO_tab
and
https://lmms.io/wiki/index.php?title=In ... #Envelopes

So since you believe that the pop appears as the note
terminate, adding a little
Release should remove your artefact.
Let us know the outcome, because if its not envelope-related, then its a more technical thing and then please post your:
* Name of your
Operative System (Windows/ Linux/ Mac) And subtype ('Home' 'Mint' '10.13' aso)
* lmms
version
* lmms
sound device chosen
Read:
https://lmms.io/wiki/index.php?title=LM ... o_Settings
* hardware specification (ram & soundcard is the most important)
* Latency setting
If the issue are with default content:
* lmms instrument involved
* lmms preset (if a factory preset is used)
* Name of FX-plugin if any used
If the issue are with non-default content:
* VST involved & link to a download for this VST
* Name of VST-FX-plugin if any used :)