Measurement-Based Characterization of Buzz Noise in Wireless Devices
When a device is communicating through wireless connections such as GSM or Wi-Fi, noise in audible range, called buzz noise, is often generated in an audio system and disturbs the audio signal quality. While the buzz noise problem has been found in wireless devices for a long time, there is little understanding of the buzz noise generation mechanism. In this paper, a buzz noise model is proposed considering demodulation and transfer function of the microphone IC front-end. The proposed model is verified through several experiments using recorded audio data in a tablet. Especially, the buzz noise caused by real Wi-Fi signals is reproduced by using the model and compared to recorded buzz noise.
Y. Zhong et al., "Measurement-Based Characterization of Buzz Noise in Wireless Devices," Proceedings of the 2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (2018, Long Beach, CA), pp. 134-138, Institute of Electrical and Electronics Engineers (IEEE), Jul 2018.
The definitive version is available at https://doi.org/10.1109/EMCSI.2018.8495170
2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity, EMC, SI and PI 2018 (2018: Jul. 30-Aug. 3, Long Beach, CA)
Electrical and Computer Engineering
Keywords and Phrases
Audio acoustics; Audio equipment; Busbars; Electromagnetic compatibility; Microphones; Noise pollution; Radio; Wi-Fi; Wireless local area networks (WLAN); Buzz noise; Measurement-based; Noise generation mechanisms; Noise modeling; Noise problems; Wi-Fi signals; Wireless connection; Wireless devices; Acoustic noise
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2018 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
01 Jul 2018