Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers
This study investigates the diffraction effects of the IEC 63034 standard micro–baffle (SMB) on the frequency response (FR) measurements of microspeakers based on the extended Biot–Tolstoy–Medwin technique. Two different cases with and without the consideration of the backward diffractions of the SM...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/3/1420 |
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| author | Jie Huang Jun Gu Xuelei Feng Yong Shen |
| author_facet | Jie Huang Jun Gu Xuelei Feng Yong Shen |
| author_sort | Jie Huang |
| collection | DOAJ |
| description | This study investigates the diffraction effects of the IEC 63034 standard micro–baffle (SMB) on the frequency response (FR) measurements of microspeakers based on the extended Biot–Tolstoy–Medwin technique. Two different cases with and without the consideration of the backward diffractions of the SMB were investigated, which correspond to different practical measurement conditions of microspeaker drivers and closed-box microspeaker modules. The experimental results obtained were consistent with the theoretical analysis and numerical calculations. Normalized FR curves characterizing the SMB diffraction effects were presented, which can be used to compensate the FRs measured on the SMB to obtain the results measured on an ideal infinite baffle and eliminate the SMB diffraction effects. |
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| format | Article |
| id | doaj.art-9dd347eb729d4b28a9b9b8e1cc3318db |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:12:16Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9dd347eb729d4b28a9b9b8e1cc3318db2023-11-23T15:57:19ZengMDPI AGApplied Sciences2076-34172022-01-01123142010.3390/app12031420Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of MicrospeakersJie Huang0Jun Gu1Xuelei Feng2Yong Shen3Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaThis study investigates the diffraction effects of the IEC 63034 standard micro–baffle (SMB) on the frequency response (FR) measurements of microspeakers based on the extended Biot–Tolstoy–Medwin technique. Two different cases with and without the consideration of the backward diffractions of the SMB were investigated, which correspond to different practical measurement conditions of microspeaker drivers and closed-box microspeaker modules. The experimental results obtained were consistent with the theoretical analysis and numerical calculations. Normalized FR curves characterizing the SMB diffraction effects were presented, which can be used to compensate the FRs measured on the SMB to obtain the results measured on an ideal infinite baffle and eliminate the SMB diffraction effects.https://www.mdpi.com/2076-3417/12/3/1420diffraction effectstandard micro-bafflefrequency responsemicrospeaker |
| spellingShingle | Jie Huang Jun Gu Xuelei Feng Yong Shen Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers Applied Sciences diffraction effect standard micro-baffle frequency response microspeaker |
| title | Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers |
| title_full | Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers |
| title_fullStr | Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers |
| title_full_unstemmed | Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers |
| title_short | Diffraction Effects of IEC63034 Standard Micro-Baffle on the Frequency Response Measurements of Microspeakers |
| title_sort | diffraction effects of iec63034 standard micro baffle on the frequency response measurements of microspeakers |
| topic | diffraction effect standard micro-baffle frequency response microspeaker |
| url | https://www.mdpi.com/2076-3417/12/3/1420 |
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