Quotation from their homepage:
“This online course introduces signal processing tools currently used in geophysics. It has been elaborated both from the book "Signal processing for geologists and geophysicists" (J.L. Mari, F. Glangeaud, F. Coppens, 1999) and from the CD "Signal processing in geosciences" (F. Glangeaud ,J.L. Mari, 2000).”
Certainly the most pedagogic way to teach signal processing dedicated to Geophysics. That course is a real gem!