OTOMO Semiconductor Launches F4-LS8118 Microphone Array, Leading the Innovation of Drone Acoustic Localization Technology

[March 26, 2026, Shenzhen] OTOMO Semiconductor, a globally leading provider of semiconductor and intelligent sensing solutions, officially launched the new F4-LS8118 microphone array drone acoustic localization system. Centered on high-precision passive detection technology, the product integrates multi-channel signal processing and AI intelligent recognition capabilities, breaking the limitations of traditional positioning technologies. It provides an efficient, covert, and reliable acoustic localization solution for various fields such as UAV control and security monitoring, while helping expand the rapidly growing professional microphone array market in 2026.

With the wide application of UAV technology in civilian, industrial and national defense fields, the demand for low-altitude security control continues to rise. Traditional radar and optical positioning methods, limited by environmental factors and concealment, can no longer meet the needs of precise positioning in complex scenarios. According to industry reports, the scale of China's professional microphone array market is expected to reach 1.33 billion yuan in 2026, among which products related to UAV acoustic localization are growing significantly, becoming one of the core drivers of market growth. OTOMO Semiconductor has long been deeply engaged in the fields of acoustic sensing and semiconductors. Relying on its advantages in chip R&D and PCBA manufacturing, it has launched the F4-LS8118 microphone array product specifically to solve industry pain points.

As the core product of this launch, the F4-LS8118 microphone array has achieved multiple breakthroughs in technical parameters and performance. The product adopts a high-performance MEMS chip architecture, supports a standard configuration of 64 channels, which can be flexibly expanded to 192 channels, with an array size of 460×460×20mm and a frequency bandwidth covering 20Hz–20kHz, balancing accuracy and practicality. In terms of positioning performance, the product achieves a fast response of 100ms, can track 3 targets simultaneously and supports upgrade expansion. The azimuth accuracy during hovering reaches 5°, and the positioning error of 3-array collaboration is ≤10m or 10% of the maximum detection value. It can achieve centimeter-level precise positioning at a height of 114 meters, far exceeding the industry average.

Compared with traditional positioning technologies, the core advantage of the F4-LS8118 lies in its passive detection design—no signal emission is required, which is highly concealed. It can effectively avoid the disadvantages of radar signals being easily interfered and optical positioning being affected by light, and is suitable for multi-scenario applications such as complex urban environments, airports, and forests. At the same time, the product is equipped with an anti-urban multipath interference algorithm, combined with AI intelligent recognition technology, with a target recognition rate of >90% and a false alarm rate of <10%. It can work stably in a fanless environment of 0°C–40°C with power consumption lower than 2.5W, featuring low power consumption, all-weather operation, anti-interference and other characteristics, perfectly meeting the strict requirements of industrial-grade applications.

In terms of application scenario layout, the F4-LS8118 microphone array fully covers fields such as anti-UAV systems, airport UAV control, forest fire rescue, urban security monitoring, military operations and industrial safety monitoring. For example, in the airport security scenario, the product can realize 24-hour unattended intrusion monitoring, early warning of unauthorized UAV intrusion, and ensure airport flight safety; in forest fire rescue, it can cooperate with UAV patrol, realize early fire detection and positioning by capturing sound signals related to fire, and gain valuable time for rescue operations. This is highly consistent with the current "solution-oriented" search trend in the field of UAV acoustic localization, with 47% of industry searchers urgently seeking such scenario-based technical solutions.

A relevant person in charge of OTOMO Semiconductor said: "The launch of the F4-LS8118 microphone array is an important achievement of the company's in-depth integration of acoustic sensing and UAV technology, and also a key layout in response to the trend of domestic substitution in the industry. At present, the self-sufficiency rate of core components of domestic professional microphone arrays has reached 68.4%. With our own advantages of more than 50,000 original SKUs in stock and 99.8% PCBA assembly yield, we can provide global customers with full-chain support from product supply to secondary development." It is reported that the product not only provides technical support such as microphone data/camera image acquisition API and demo, but also presents PCBA structure diagrams to help customers quickly complete product integration and customized development.

In addition, combined with the characteristics of global market layout, the F4-LS8118 microphone array has been specially optimized for multi-region adaptability, which can meet the differentiated needs of core markets such as the United States, China and Germany—the U.S. market focuses on urban security and airport protection, the German market focuses on industrial-grade high-precision detection, and the Chinese market highlights multi-array integration to adapt to all scenarios. At present, the product has been officially launched for sale at a price of $3,277.50 (original price $3,450.00). Subscribing to the corporate newsletter can enjoy a 5% discount on the first purchase, further reducing customers' procurement costs.

In the future, OTOMO Semiconductor will continue to focus on the iterative upgrading of microphone array technology, combine AI algorithms and industry needs to launch more high-precision acoustic sensing products adapted to different scenarios, and at the same time deepen global technical layout and cooperation with partners. It will help the large-scale application of UAV acoustic localization technology in more fields and promote the professional microphone array industry to enter a new stage of "technology-standard-ecology" collaborative evolution.