公开(公告)号：US09215540B2

公开(公告)日：2015-12-15

申请号：US14252069

申请日：2014-04-14

Applicant: Primax Electronics Ltd.

Inventor： Jung-Lang Tsai ,  Yuan Min Wang

IPC: H04R29/00

CPC classification number: H04R29/00

Abstract: A buzz detecting method and a buzz detecting system are provided for testing whether an under-test sound playing device generates a buzz while playing sound. By an application program module, plural under-test sound signals from the under-test sound playing device are converted into plural under-test frequency-domain signals corresponding to the under-test sound signals through Fourier transform. Moreover, the application program module calculates plural under-test noise ratios corresponding to the frequencies of respective under-test sound signals according to respective under-test frequency-domain signals. After the plural under-test noise ratios are compared with plural standard noise ratios from a standard sound playing device, the application program module may automatically judge whether the under-test sound playing device generates a buzz while playing sound. Since the testing procedure does not need to be implemented by the trained testers, the overall efficiency is largely enhanced.

Abstract translation: 提供蜂鸣检测方法和蜂鸣检测系统，用于测试低音声音播放装置在播放声音时是否产生蜂鸣声。 通过应用程序模块，来自未测试声音播放装置的多个未被测试的声音信号通过傅里叶变换被转换成对应于未被测试的声音信号的多个未被测试的频域信号。 此外，应用程序模块根据相应的被测试频域信号来计算与各个被测试声音信号的频率相对应的多个待测噪声比。 在将多个未测试噪声比与来自标准声音播放装置的多个标准噪声比进行比较之后，应用程序模块可以在播放声音时自动判断未被测试的声音播放装置是否产生蜂鸣声。 由于测试程序不需要经过培训的测试人员实施，因此整体效率大大提高。

公开(公告)号：US09693161B2

公开(公告)日：2017-06-27

申请号：US14482505

申请日：2014-09-10

Applicant: Primax Electronics Ltd.

Inventor： Yung-Tai Pan ,  Jung-Lang Tsai

IPC: G01M3/32 ,  H04R29/00 ,  H04R1/02

CPC classification number: H04R29/001 ,  G01M3/329 ,  H04R1/02

Abstract: A close-type speaker leak test system includes a first chamber, a second chamber, a third chamber, a fourth chamber, a vacuum generator, and a differential pressure gauge. Firstly, a negative pressure value of the first chamber and the second chamber is generated by the vacuum generator. A standard close-type speaker is placed within the third chamber, and the first chamber and the third chamber are in communication with each other. An under-test close-type speaker is placed within a fourth chamber, and the second chamber and the fourth chamber are in communication with each other. A pressure difference value between the third chamber and the fourth chamber is measured by the differential pressure gauge. If the pressure difference value is larger than a predetermined value, the under-test close-type speaker has the leak. Consequently, the misjudgment is reduced, and the testing efficiency is enhanced.

公开(公告)号：US20150215717A1

公开(公告)日：2015-07-30

申请号：US14252069

申请日：2014-04-14

Applicant: Primax Electronics Ltd.

Inventor： Jung-Lang Tsai ,  Yuan Min Wang

IPC: H04R29/00

CPC classification number: H04R29/00

Abstract: A buzz detecting method and a buzz detecting system are provided for testing whether an under-test sound playing device generates a buzz while playing sound. By an application program module, plural under-test sound signals from the under-test sound playing device are converted into plural under-test frequency-domain signals corresponding to the under-test sound signals through Fourier transform. Moreover, the application program module calculates plural under-test noise ratios corresponding to the frequencies of respective under-test sound signals according to respective under-test frequency-domain signals. After the plural under-test noise ratios are compared with plural standard noise ratios from a standard sound playing device, the application program module may automatically judge whether the under-test sound playing device generates a buzz while playing sound. Since the testing procedure does not need to be implemented by the trained testers, the overall efficiency is largely enhanced.

Abstract translation: 提供蜂鸣检测方法和蜂鸣检测系统，用于测试低音声音播放装置在播放声音时是否产生蜂鸣声。 通过应用程序模块，来自未测试声音播放装置的多个未被测试的声音信号通过傅里叶变换被转换成对应于未被测试的声音信号的多个未被测试的频域信号。 此外，应用程序模块根据相应的被测试频域信号来计算与各个被测试声音信号的频率相对应的多个待测噪声比。 在将多个未测试噪声比与来自标准声音播放装置的多个标准噪声比进行比较之后，应用程序模块可以在播放声音时自动判断未被测试的声音播放装置是否产生蜂鸣声。 由于测试程序不需要经过培训的测试人员实施，因此整体效率大大提高。