Wojciech Gruszka has been working for Radio Kraków as a sound engineer since 1997. He makes recordings of music (CDs), concerts and radio dramas and much more. He also dabbles in the production of radio spots. He has produced over a dozen CDs and participated in many film and theatre music recording sessions.

He has collaborated, among others, with Marek Grechuta, Jarek Śmietana, Jan Kanty Pawluśkiewicz, Andrzej Zarycki, Włodek Pawlik, Nigel Kennedy, Skaldowie and Kroke.