TY - GEN
T1 - The Acoustic Velocity Vectors of the Outgoing Sound Field
AU - Wang, Frank Jiarui
AU - Samarasinghe, Prasanga
AU - Abhayapala, Thushara
AU - Zhang, Jihui Aimee
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper proposes the spherical harmonic and the cylindrical harmonic decompositions of the acoustic velocity vectors of the outgoing sound field. The spherical harmonic coefficients and the cylindrical harmonic coefficients of the pressure of the outgoing sound field can be measured by a spherical microphone array and a cylindrical microphone array surrounding the source, respectively. By using the sound field translation formula, the spherical harmonic coefficients and the cylindrical harmonic coefficients of the acoustic velocity vectors of the outgoing sound field are obtained. Simulations show the proposed spherical harmonic and cylindrical harmonic decompositions of the acoustic velocity vectors can accurately model a monopole, a dipole and a quadrupole. The proposed decompositions can be used in exterior noise control, where an array of loudspeakers controls the acoustic velocity vectors of the outgoing sound field.
AB - This paper proposes the spherical harmonic and the cylindrical harmonic decompositions of the acoustic velocity vectors of the outgoing sound field. The spherical harmonic coefficients and the cylindrical harmonic coefficients of the pressure of the outgoing sound field can be measured by a spherical microphone array and a cylindrical microphone array surrounding the source, respectively. By using the sound field translation formula, the spherical harmonic coefficients and the cylindrical harmonic coefficients of the acoustic velocity vectors of the outgoing sound field are obtained. Simulations show the proposed spherical harmonic and cylindrical harmonic decompositions of the acoustic velocity vectors can accurately model a monopole, a dipole and a quadrupole. The proposed decompositions can be used in exterior noise control, where an array of loudspeakers controls the acoustic velocity vectors of the outgoing sound field.
KW - Acoustic velocity vectors
KW - cylindrical microphone array
KW - spherical microphone array
UR - http://www.scopus.com/inward/record.url?scp=85207226327&partnerID=8YFLogxK
U2 - 10.1109/IWAENC61483.2024.10694617
DO - 10.1109/IWAENC61483.2024.10694617
M3 - Conference contribution
AN - SCOPUS:85207226327
T3 - 2024 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024 - Proceedings
SP - 150
EP - 154
BT - 2024 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Workshop on Acoustic Signal Enhancement, IWAENC 2024
Y2 - 9 September 2024 through 12 September 2024
ER -