Valery Lebedev, better known as Sound Quelle, is a Russian musician from the city of Togliatti.

The Sound Quelle sound focuses on beautiful harmonious music in combination with moderately aggressive bass lines. Sound Quelle has released his productions via Armada Music, Black Hole Recordings, Enhanced, Premier and many other labels. Furthermore, he is supported by some of the best DJs in the world, such as: Above & Above & Beyond, Markus Schulz, Paul Van Dyk, Paul Oakenfold, Ferry Corsten, and many others.