TY - GEN
T1 - Evaluating Audio System Dynamic Range Performance under Variable Distortion Condition
AU - Wang, Desheng
AU - Wei, Yangjie
AU - Zhang, Ke
AU - Yi, Wang
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - Audio system performance evaluation plays a significant role not only for the product selection of users, but for validation of design specification. Among these parameters, dynamic range and spurious free dynamic range indexes are two of the most important portions. Spurious free dynamic range index only considers the highest harmonic or spurious while the dynamic range only consider the root mean square of the noise floor, and there is no evaluation method for the other part of the spectrum band width. In this paper, we proposed a universal method that evaluates the dynamic range performance of audio system corresponding to different allowable distortion degrees, which is called moving filtering line (MFL). The low complexity calculation method is realized by setting a MFL in the system output signal spectrum. Finally, we carried out simulation on MATLAB and performed experiments on a hardware platform, whose results verified its flexibility and effectiveness.
AB - Audio system performance evaluation plays a significant role not only for the product selection of users, but for validation of design specification. Among these parameters, dynamic range and spurious free dynamic range indexes are two of the most important portions. Spurious free dynamic range index only considers the highest harmonic or spurious while the dynamic range only consider the root mean square of the noise floor, and there is no evaluation method for the other part of the spectrum band width. In this paper, we proposed a universal method that evaluates the dynamic range performance of audio system corresponding to different allowable distortion degrees, which is called moving filtering line (MFL). The low complexity calculation method is realized by setting a MFL in the system output signal spectrum. Finally, we carried out simulation on MATLAB and performed experiments on a hardware platform, whose results verified its flexibility and effectiveness.
KW - audio system
KW - dynamic range (DR)
KW - performance evaluation
KW - spurious free dynamic range (SFDR)
UR - https://www.scopus.com/pages/publications/85085524716
U2 - 10.1109/ISCID.2019.10147
DO - 10.1109/ISCID.2019.10147
M3 - 会议稿件
AN - SCOPUS:85085524716
T3 - Proceedings - 2019 12th International Symposium on Computational Intelligence and Design, ISCID 2019
SP - 279
EP - 284
BT - Proceedings - 2019 12th International Symposium on Computational Intelligence and Design, ISCID 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Symposium on Computational Intelligence and Design, ISCID 2019
Y2 - 14 December 2019 through 15 December 2019
ER -