In the production process of consumer electronic products, there is a very important link, that is, the product commissioning link. The commissioning process can screen out defective products, ensure the consistency of performance, and ensure the quality of products to the market.
There is an adaptive commissioning equipment with the background of the Institute of Acoustics of the Chinese Academy of Sciences
Dongguan Weisheng Technology Co., Ltd. (hereinafter referred to as Weisheng Technology) is a professional acoustic commissioning solution provider, focusing on high-end acoustic automatic commissioning equipment and system solutions in the industrial field. The founders of the team come from the Institute of Acoustics of the Chinese Academy of Sciences, Huawei, Cisco and other units, and have obtained more than 70 invention patents and have long-term complete development experience in electroacoustic products and testing equipment. With excellent hardware, software, acoustic algorithms and rapid process development, Weisheng Technology provides high-end acoustic and audio test solutions for manufacturers from the fields of smart headphones, smart glasses and smart vehicles.
In view of the development needs of the TWS headset market, Weisheng Technology launched Afilter ANC single-box four-test fully adaptive commissioning device, which supports all mainstream Bluetooth master control chip platforms, including Hengxuan, Wuqiwei, Dafa, Qualcomm, Jerry, Zhongke Blue News, etc.
Let's take a look at this, with the background of the Institute of Acoustics of the Chinese Academy of Sciences, Afilter ANC single box four-test fully adaptive commissioning equipment, what are the specific features
Afilter ANC single-box four-test fully adaptive commissioning equipment:
Afilter ANC Single Box Quad Test Fully Adaptive Commissioning Equipment: The original ANC commissioning equipment uses a fixed coefficient noise reduction filter. For different headphones on the production line (such as million-level), its hardware components such as speakers, microphones, as well as sound cavities and assembly processes are different, at this time, if the filter coefficient is fixed, the performance of active noise reduction will be different. Some products that are at the lower limit of noise reduction performance will become defective products. The Afilter fully adaptive commissioning equipment of Weishan Technology fully adaptively calculates the optimal noise reduction filter coefficient according to the different test data for different headphones, so that the final active noise reduction performance is the best, and the consistency of the noise reduction performance can be more guaranteed. In this way, the defective products under the original fixed filter are mostly corrected as good products after adaptively calculating the optimal noise reduction filter coefficient of each headphone.
Afilter ANC single-box four-test fully adaptive commissioning device optimizes the depth of active noise reduction and improves the consistency of noise reduction performance in the production line. Compared with similar competitive products in the market, there are 4 significant advantages of "full, fast, accurate and stable" in terms of function and performance: integrated design of debugging and detection and AI data analysis, function integration, cost can be reduced by 40%, detection speed can be increased by 100%, adaptive commissioning can reduce the defect rate of 5%, and automatic analysis of data cloud / automatic tuning of equipment parameters can realize intelligent analysis and adjustment of equipment.
Let's take a look at the specific information of this device of Weisheng Technology:
1. Appearance and size of the equipment: length 950mm * width 850mm * height 1350mm
2. Equipment structure
The equipment hardware is mainly composed of shielded cabinets, sound cards, amplifiers, artificial ears, artificial ear fixtures, speaker speakers, speaker brackets, computer hosts and monitors.
3. The unique functions and advantages of the equipment are easy to maintain and manage
Support TWS/Bluetooth stereo + ANC single box four ears / dual box eight ear adaptive ANC modulation.
Support TWS/Bluetooth stereo + ANC active noise reduction + transmission + audio modulation.
Supports adaptive calibration of different types of headphones, different test equipment and fixtures.
Adaptive calibration of subjective hearing in both the R&D phase and the production phase.
Support setting each noise reduction curve frame line, considering the noise reduction depth, width, balance, etc., to set.
Concise graphical operation, menu-based editing and setting of test parameters.
Complete authority management, production line commissioning parameter management.
The test data can be uploaded to the cloud and connected with the MES system; it is convenient for quality traceability.
Unique data analysis templates and automatic data analysis in the cloud, automatically generate analysis reports.
4. The principle of fully adaptive commissioning
The fully adaptive ANC algorithm tailors an ANC optimal filter parameter for each headphone to ensure optimal noise reduction and consistency.
5. The effect of completely adaptive modulation
The production line equipment supports fully adaptive ANC filter in-line calculation, with a medium and high frequency depth of 10-20db deeper than the noise reduction depth of the standard filter. For the original testing equipment, the ANC defect is generally close to 8%, and the use of full adaptive modulation can be reduced to 3%.
After the filter adjustment, the 100-2KHZ noise reduction index is improved quite significantly, and the original high-frequency noise increase part after 2KHZ also achieves effective suppression, which perfectly achieves the predetermined design goal.
6. Test efficiency of single box one drag four integrated equipment
7. Comparison of sound Afilter and trimmer filter methods
About Weisheng Technology
Weisheng Technology is a professional provider of high-end acoustic automatic commissioning equipment and system solutions focusing on the industrial field. Engaged in the development, manufacture and sales of acoustic commissioning equipment and online acoustic monitoring systems in the field of consumer electronics, electrical appliances, mechanical equipment monitoring and on-board/high-speed rail. With excellent hardware, software, acoustic algorithms and rapid process development, Weisheng Technology provides high-end acoustic and audio test solutions for manufacturers from smart headphones, smart glasses, and smart vehicles.
The company was founded by senior experts in the electroacoustic industry, and the founders of the team came from the Institute of Acoustics of the Chinese Academy of Sciences, Huawei, Cisco and other units, and obtained more than 70 invention patents, and had long-term complete development experience in electroacoustic products and testing equipment. Successfully undertook the development of various active noise-canceling headphones, audio glasses, bone conduction headphones, 4G smart watches and other products. The team operators have won the Huawei President Award four times and the Gold Team Award many times, and have rich experience in operation and market management in the IOT industry.
The founding shareholders of Weisheng Technology include Zhongke Acoustic, all team members are from the Key Laboratory of Noise and Vibration of the Institute of Acoustics of the Chinese Academy of Sciences, with its core technology precipitation in the acoustic industry for 20 years, to assist Weisheng Technology to complete a breakthrough in the automatic calculation of the adaptive active noise reduction optimal filter of the card neck, and the first in the industry to launch an active noise reduction fully adaptive modulation program that supports all major Bluetooth main control chip platforms, and the algorithm has full freedom, robustness and adaptability. The algorithm models and corrects the test according to the real person's ear, so that the test results are as close as possible to the real listening effect.
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