Please, explain for the attached file, how to eliminate the defect of the small (on 1min 22-23sec) sector.
Zoom in close on the damaged region. http://manual.audacityteam.org/o/man/zooming.html
Select and delete each of the two bad bits.
The result:
For more information about basic editing, please see: http://manual.audacityteam.org/o/man/tutorial_editing_an_existing_file.html
Thank you!