Direct Acoustic Digital to Analogue Conversion with Digital Transducer Array Loudspeakers

Mendoza - Lopez J, Busbridge SC, Fryer PA. Direct Acoustic Digital to Analogue Conversion with Digital Transducer Array Loudspeakers. In: AES Convention 118. Audio Engineering Society; 2005. Paper 6417. Available from: https://aes.org/publications/elibrary-page/?id=13133

@inproceedings{MendozaLopez2005_13133,
  author = {Mendoza - Lopez, Jorge and Busbridge, Simon C. and Fryer, Peter A.},
  title = {{Direct Acoustic Digital to Analogue Conversion with Digital Transducer Array Loudspeakers}},
  booktitle = {AES Convention 118},
  note = {Paper 6417},
  year = {2005},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13133}
}

TY  - CPAPER
TI  - Direct Acoustic Digital to Analogue Conversion with Digital Transducer Array Loudspeakers
AU  - Mendoza - Lopez, Jorge
AU  - Busbridge, Simon C.
AU  - Fryer, Peter A.
T2  - AES Convention 118
M1  - Paper 6417
PY  - 2005
DA  - 2005/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13133
PB  - Audio Engineering Society
LA  - en
AB  - A digital transducer array (DTA) loudspeaker which produces a quantised sound field directly from binary-weighted bit streams has been developed. Theoretical investigation shows that it is possible to generate an acoustic wavefront from an assemblage of air quanta provided that the basis functions are orthogonal. Other acoustic effects e.g. filtering are presented. Moving coil transducer frequency response measurements highlight its significance to the behaviour of the array by the use of current driving. Results obtained with newly developed stiff diamond diaphragms demonstrate the importance of the transient response to the conversion process. Further results and simulations are presented giving the DTA sound field distortion as functions of the bit stream processing algorithm as well as the array geometry.
ER  -