I’m new to this forum.
I made a recording few days ago a tutorial video from internet and afraid to recorded due different audios. I try to explain better :
On my pc is installed Windows 10 and through hdmi cable is connecte to a larger monitor selected as default for both audio and video. I also connected headphones only to use microphone. I attache a little sample of the terrible result and now I’m wondering if there is a way to correct the audio trace.
Someone can help me ? Thanks in advance
See here for how to attach an audio sample: https://forum.audacityteam.org/t/how-to-post-an-audio-sample/29851/1
A short sample (say around 6 seconds) in WAV format will probably be best.
sorry herein attached
Not quite.
After clicking “Add Files” and selecting the file, the file will upload and you should see something like this:
Crossed post.
Got it now 
I don’t recognize the language, but it sounds like you have a bad echo problem.
In the “Transport toolbar > Transport options”, ensure that "Software playthrough is off (not selected),
Also, try to ensure that sound is playing only through your headphones and not through any loudspeakers while you are recording.
You mean there is no way to correct the recording already made ?
You mean there is no way to correct the recording already made ?
Some things can be corrected or improved and sometimes you can makd a “great” recording from a " good" recording. But, most audio problems can’t be fixed. That’s why pros with access to all the best software still record in soundproof studios with good equipment and careful mic placement, etc.
You say “Some things can be corrected or improved”
ok any suggestion?
Echoes cannot be removed.