The climber is Jürgen Reis, former (?) competitor on the World Cup lead circuit.
He has a large collection of training podcasts at
power-quest.cc. Interviews with athletes and coaches in a wide range of sports, including quite a few climbers. Mostly in German* but some in English, e.g. Francois Legrand is in there at #60, Sean McColl #228, Evgeny Ovchinnikov #227 … (I couldn't find how to link directly to the individual podcasts).
Also on there but in German: Jakob Schubert, the Bindhammers, Kilian Fischhuber, Cedric Lachat
*
many Germans might disagree, given Jürgen's rather heavy Austrian accent