Red line in " mix and render "

[charlen]

hello
Adcty 3.7.5 mac ventura 13.2
i cannot find the significations of thoses red lines
thanks for your help

[billw58]

In the View menu, you have “Show Clipping in Waveform” checked.

See View Menu - Audacity Manual , scroll down.

[charlen]

thanks a lot for your answer