Digital Loudspeaker Technologies and Their Future Development
Huang Min · Audio Engineering · 2004
This paper mainly introduces two currently competing digital loudspeaker technologies. Structure of digital transducer arrays and multiple voice coils, mechanism of sound pressure field, as well as other possible techniques are expressed by contrast. The requirements for the loudspeaker's two driving technologies are discussed, and the performance of 6 bit prototype systems is evaluated. Methods to extend the feasibility to 16 bits, utilities of semiconductor mass fabrication technique and applications of over sampling and noise shaping are discussed.