Transducer Effects on Direct Digital-to-Acoustic Loudspeaker Arrays
In order to avoid the requirement of D-to-A converters when connecting a digital signal to a loudspeaker, researchers have examined numerous types of direct digital-to-sound transducers. This investigation considers an array of transducers fed directly by amplified streams that were obtained from a thermometer unary encoding scheme with a fixed or randomized bit-to-transducer assignment. Even though this research was limited by simulation assumptions and artificially devised transducer dimension, it considers the importance of using real sources rather than idealized point sources. The transducer types, sampling rate, and bit-to-transducer assignment influence the resulting acoustic field. Randomized bit assignment produced a significant reduction in distortion.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.