Measuring Technology-Based Sound Tuning in the Vehicle
The sound quality of a sound system depends on many factors. In addition to amplifiers and loudspeakers, microprocessor-controlled signal processing in particular is responsible for ensuring the faithful reproduction of music and podcasts, telephone calls and announcements from driver assistance systems. This calls for suitable data acquisition during the development phase. There are three different methods for measuring the individual speakers (or speaker groups) in the vehicle:
• a single microphone,
• a dummy head system, or
• microphone arrays consisting of several microphones.
Each measuring method has its advantages and disadvantages. What these are and how the results need to be interpreted in order to draw suitable conclusions for digital signal processing (DSP) is explained in our white paper "Optimal Sound Experience on Four Wheels", which can be downloaded here.