Snow avalanches and debris flows (alpine mass movements) are processes that occur in high alpine regions with consequences on infrastructure and settlements. This study presents a new approach to gather knowledge about alpine mass movements using a combination of two acoustic sensors: seismic sensors and infrasound microphones. Both sensors have been individually used in many previous studies. But the potential combination of infrasonic and seismic sensors for monitoring natural hazards, which could take advantage of the benefits of both sensor technologies, has not been evaluated to date. As a consequence, the aim of the present work is an in-depth, combined study considering both the infrasonic and the seismic wave field generated by alpine mass movements. A detailed analysis of seismic and infrasonic signals generated by snow avalanches and debris flows monitored at different locations in the Austrian, Swiss Alps and China will be presented. Additionally, the data will be compared with other measurements, such as flow depth (for debris flows) or flow velocity and pressure (snow avalanches), for the interpretation, verification and validation of the seismic and infrasonic data. The most important characteristic of acoustic signals from alpine mass movements are summarized and possible interfering signals are presented. At the end an outlook to the future of monitoring alpine mass movements is given.