An Application of Miniature Microphone Arrays to Stereophonic Recording Compatible to Conventional Practice

Bai MR, Kuo MC, Hua YH. An Application of Miniature Microphone Arrays to Stereophonic Recording Compatible to Conventional Practice. J Audio Eng Soc. 2015;63(4):267-279. doi:10.17743/jaes.2015.0019

@article{Bai2015_17584,
  author = {Bai, Mingsian R. and Kuo, Ming-Chun and Hua, Yi-Hsin},
  title = {{An Application of Miniature Microphone Arrays to Stereophonic Recording Compatible to Conventional Practice}},
  journal = {Journal of the Audio Engineering Society},
  volume = {63},
  number = {4},
  pages = {267--279},
  year = {2015},
  month = apr,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2015.0019},
  url = {https://doi.org/10.17743/jaes.2015.0019}
}

TY  - JOUR
TI  - An Application of Miniature Microphone Arrays to Stereophonic Recording Compatible to Conventional Practice
AU  - Bai, Mingsian R.
AU  - Kuo, Ming-Chun
AU  - Hua, Yi-Hsin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 63
IS  - 4
SP  - 267
EP  - 279
PY  - 2015
DA  - 2015/04/06
DO  - 10.17743/jaes.2015.0019
UR  - https://doi.org/10.17743/jaes.2015.0019
PB  - Audio Engineering Society
LA  - en
AB  - Audio recordings for mobile devices are predominantly mono-channel, in part, because stereo transducers are too large to be mounted on hand-held devices. By using array signal processing and omnidirectional, dipole cardioid elements, two-channel stereophony can simulate a stereo microphone. In addition, 5.1 surround sound can also be realized with a special microphone arrangement. To synthesize the desired beam patterns, optimized beamformers were designed with the aid of least-square and convex optimization techniques. Two-channel stereophonic recording configurations (including a broadside array and a curved array) and a 5.1 surround sound configuration were developed and evaluated with objective and subjective tests. For two-channel stereophonic recording, the results show that the broadside array and curved array outperform the conventional M-S technique. The 5.1 array has achieved similar recording quality as conventional systems.
ER  -