Realization of sound reproduction in a specified region based on transfer function interpolation

Jie Cao; Ming Wu; Jun Yang

doi:10.1007/978-3-642-21747-0_27

Realization of sound reproduction in a specified region based on transfer function interpolation

Jie Cao^*, Ming Wu, Jun Yang

^*Corresponding author for this work

CAS - Institute of Acoustics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, a multichannel sound reproduction system based on transfer function interpolation is developed. The system creates a directional sound field by weighting signals fed to the loudspeaker units. To calculate the weighting coefficients, the acoustic transfer functions between the input signal of each loudspeaker and the signal in the target zone should be measured in advance. Three types of interpolation techniques are investigated to relieve the workload of measurements for obtaining the acoustic transfer functions at the target points. Based on the Discrete Fourier Transform (DFT) interpolation, a sound reproduction system using loudspeaker array is realized and more than 20 dB is guaranteed for the side lobe suppression at the frequencies above 800 Hz.

Original language	English
Title of host publication	Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011
Pages	221-228
Number of pages	8
Edition	VOL. 3
DOIs	https://doi.org/10.1007/978-3-642-21747-0_27
Publication status	Published - 2011
Externally published	Yes
Event	2011 International Conference on Electric and Electronics, EEIC 2011 - Nanchang, China Duration: Jun 20 2011 → Jun 22 2011

Publication series

Name	Lecture Notes in Electrical Engineering
Number	VOL. 3
Volume	99 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	2011 International Conference on Electric and Electronics, EEIC 2011
Country/Territory	China
City	Nanchang
Period	6/20/11 → 6/22/11

ASJC Scopus Subject Areas

Industrial and Manufacturing Engineering

Keywords

Beam pattern
Loudspeaker array
Multichannel sound reproduction
Transfer function interpolation

Access to Document

10.1007/978-3-642-21747-0_27

Cite this

Cao, J., Wu, M., & Yang, J. (2011). Realization of sound reproduction in a specified region based on transfer function interpolation. In Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011 (VOL. 3 ed., pp. 221-228). (Lecture Notes in Electrical Engineering; Vol. 99 LNEE, No. VOL. 3). https://doi.org/10.1007/978-3-642-21747-0_27

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title = "Realization of sound reproduction in a specified region based on transfer function interpolation",

abstract = "In this paper, a multichannel sound reproduction system based on transfer function interpolation is developed. The system creates a directional sound field by weighting signals fed to the loudspeaker units. To calculate the weighting coefficients, the acoustic transfer functions between the input signal of each loudspeaker and the signal in the target zone should be measured in advance. Three types of interpolation techniques are investigated to relieve the workload of measurements for obtaining the acoustic transfer functions at the target points. Based on the Discrete Fourier Transform (DFT) interpolation, a sound reproduction system using loudspeaker array is realized and more than 20 dB is guaranteed for the side lobe suppression at the frequencies above 800 Hz.",

keywords = "Beam pattern, Loudspeaker array, Multichannel sound reproduction, Transfer function interpolation",

author = "Jie Cao and Ming Wu and Jun Yang",

year = "2011",

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language = "English",

isbn = "9783642217463",

series = "Lecture Notes in Electrical Engineering",

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pages = "221--228",

booktitle = "Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011",

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Cao, J, Wu, M & Yang, J 2011, Realization of sound reproduction in a specified region based on transfer function interpolation. in Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011. VOL. 3 edn, Lecture Notes in Electrical Engineering, no. VOL. 3, vol. 99 LNEE, pp. 221-228, 2011 International Conference on Electric and Electronics, EEIC 2011, Nanchang, China, 6/20/11. https://doi.org/10.1007/978-3-642-21747-0_27

Realization of sound reproduction in a specified region based on transfer function interpolation. / Cao, Jie; Wu, Ming; Yang, Jun.
Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011. VOL. 3. ed. 2011. p. 221-228 (Lecture Notes in Electrical Engineering; Vol. 99 LNEE, No. VOL. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Wu, Ming

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AB - In this paper, a multichannel sound reproduction system based on transfer function interpolation is developed. The system creates a directional sound field by weighting signals fed to the loudspeaker units. To calculate the weighting coefficients, the acoustic transfer functions between the input signal of each loudspeaker and the signal in the target zone should be measured in advance. Three types of interpolation techniques are investigated to relieve the workload of measurements for obtaining the acoustic transfer functions at the target points. Based on the Discrete Fourier Transform (DFT) interpolation, a sound reproduction system using loudspeaker array is realized and more than 20 dB is guaranteed for the side lobe suppression at the frequencies above 800 Hz.

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KW - Transfer function interpolation

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Cao J, Wu M, Yang J. Realization of sound reproduction in a specified region based on transfer function interpolation. In Electrical Power Systems and Computers - Selected Papers from the 2011 International Conference on Electric and Electronics, EEIC 2011. VOL. 3 ed. 2011. p. 221-228. (Lecture Notes in Electrical Engineering; VOL. 3). doi: 10.1007/978-3-642-21747-0_27

Realization of sound reproduction in a specified region based on transfer function interpolation

Abstract

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ASJC Scopus Subject Areas

Keywords

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