Soundbar System with Embedded Multichannel Digital Amplifier SoC

Seo J, Yoo JH, Park T, Lee T, Yoo M, Jang G, Won JH, Choi Y. Soundbar System with Embedded Multichannel Digital Amplifier SoC. In: AES Convention 138. Audio Engineering Society; 2015. Paper 9288. Available from: https://aes.org/publications/elibrary-page/?id=17712

@inproceedings{Seo2015_17712,
  author = {Seo, Jeongil and Yoo, Jae-Hyoun and Park, Taejin and Lee, Taejin and Yoo, Myunggeun and Jang, Geunho and Won, Jae-Hee and Choi, Yeongha},
  title = {{Soundbar System with Embedded Multichannel Digital Amplifier SoC}},
  booktitle = {AES Convention 138},
  note = {Paper 9288},
  year = {2015},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17712}
}

TY  - CPAPER
TI  - Soundbar System with Embedded Multichannel Digital Amplifier SoC
AU  - Seo, Jeongil
AU  - Yoo, Jae-Hyoun
AU  - Park, Taejin
AU  - Lee, Taejin
AU  - Yoo, Myunggeun
AU  - Jang, Geunho
AU  - Won, Jae-Hee
AU  - Choi, Yeongha
T2  - AES Convention 138
M1  - Paper 9288
PY  - 2015
DA  - 2015/05/06
UR  - https://aes.org/publications/elibrary-page/?id=17712
PB  - Audio Engineering Society
LA  - en
AB  - This paper presents collaboration approach results between an audio signal processing algorithm and a digital amplifier structure for efficient implementation of soundbar applications. If we want to provide a virtual surround sound image with a linear loudspeaker array, high performance DSP and multichannel digital amplifiers are required. The required performance for DSP is depended on the algorithm complexity for creating a virtual surround sound image. However the final computation before generating the output loudspeaker signals (e.g., 16 channels) is generally composed of simple delay and sum computations from an input audio signal (e.g., 5.1 channels) to output multichannel loudspeaker signals. Therefore we redesigned the audio signal processing software by two-block processing, and the second block for simple delay and sum computation is implemented at the multichannel digital amplifier, which has an independent DSP core. Through computational simulation and hardware implementation, the proposed system showed equivalent performance with the conventional one block processing system.
ER  -