On March 27, 2026, AAC Technologies made a stunning appearance at the 2nd Yanzhi Humanoid Robot Conference.
At the conference, AAC delivered a keynote speech titled Hearing the Future, Sensing the World. Focusing on industry pain points such as ambient noise interference, sound pickup challenges posed by variations in robot head shapes, and limited voice interaction in confined spaces, the company unveiled a suite of software-hardware integrated acoustic sensing solutions, including the adaptive ECNR solution, intelligent sound pickup algorithm solution, and flexible sound pickup solution.
In addition, for its innovative breakthroughs in the field of robotic acoustic sensing, AAC was honored with the conference’s Zhiding Award · Supply Chain Excellence Enterprise Award. This recognition not only reflects the industry’s deep acknowledgment of AAC’s sensing technology strengths, but also affirms its contributions to accelerating the engineering implementation of embodied intelligence.
Cross-domain Empowerment: Building a Transferable Perception Capability System
As the embodied intelligence industry booms, humanoid robots are moving beyond laboratories into real-world production and daily life.
Sun Shuyuan, R&D Director of AAC’s Robot Auditory and Vocalization Division, shared at the conference: “AAC is systematically migrating its mature perception capabilities — honed over years of deep engagement in consumer electronics and smart vehicles, and validated by tens of billions of shipments — into the embodied intelligence sector.”
By integrating four core systems — actuation, perception, structure, and thermal management — AAC has built a complete technology chain spanning from core components to system integration. The migration of system-level capabilities, vertical integration strength, 100% domestic full-stack independent R&D capability, and multi-scenario validation expertise together form AAC’s core competitiveness in the robotics track, laying a solid and reliable physical intelligence foundation for humanoid robots.
Addressing Pain Points: Solving the Three Major “Acoustic Dilemmas” of Humanoid Robots
In practical humanoid robot applications, voice interaction is the most direct form of human-machine interaction, yet it is also the capability most vulnerable to external environmental impacts. For real-world scenarios, the voice interaction performance of humanoid robots faces three key challenges:
1. Ontology Design Challenge: High ID design complexity and compromised sound pickup performance
With limited internal space in humanoid robots, traditional microphone arrays struggle to balance industrial design requirements and sound pickup performance.
2. Physical Environment Challenge: Mixed external noise and self-generated noise reflection
Unpredictable high-intensity ambient noise in open settings such as exhibitions, streets, and shopping malls severely disrupts humanoid robots’ voice recognition. Meanwhile, mechanical noise generated by the robot’s own motors and operational movements further degrades sound pickup quality.
3. Interaction Performance Challenge: Multi-person speech separation difficulty and unnatural voice feedback
In scenarios with multiple simultaneous speakers, humanoid robots face difficulties in accurately targeting command sources, with bottlenecks in sound source localization and speech separation. Additionally, robot voice responses often suffer from delays or direction mismatches, undermining the naturalness and coherence of interaction.
To tackle these pain points, AAC introduces deeply integrated software and hardware solutions for robotic auditory and vocal functions, helping robots advance from simply “hearing” to “hearing clearly, hearing accurately, and interacting smoothly”.
Ontology Design Challenge
Q: How to achieve optimal performance within a robot’s limited ID design space?
A: Flexible sound pickup solution redefines design freedom and performance.
This innovative solution adopts a flexible FPC design that conforms perfectly to irregular head structures, eliminating the need to trade appearance for performance. It also delivers 360° omnidirectional sound pickup, enabling robots to respond accurately even when someone speaks from behind. AAC’s 80dB optical microphones provide professional studio-grade sound capture, clearly picking up speech details even at long distances and in noisy environments — equipping robots with “sharp ears that catch every sound”.
Physical Environment Challenge
Q: How to enable robots to accurately capture commands in noisy environments?
A: Adaptive ECNR solution frees interactions from unwanted noise.
This solution integrates an adaptive echo cancellation algorithm and an ambient noise suppression algorithm, enabling stable voice interaction for robots in complex environments. The adaptive echo cancellation algorithm supports full-duplex communication, allowing robots to precisely listen to commands while engaging in voice interaction with users, free from echo interference. The ambient noise suppression algorithm ensures consistently high wake-up rates and recognition accuracy in complex settings, guaranteeing stable and natural voice interaction.
Interaction Performance Challenge
Q: How to enable robots to quickly lock onto the target user amidst mixed voices?
A: Intelligent sound pickup algorithm solution + target voice intelligent auditory solution: enabling robots to “recognize users by voice and respond instantly”.
Through deep synergy between the two solutions, AAC addresses the dual challenges of “hearing accurately” and “understanding correctly” for robots. The intelligent sound pickup algorithm solution, based on KWS keyword spotting, DOA direction-of-arrival recognition, and BF beamforming technology, achieves highly efficient wake-up and rapid response in complex environments, delivering “fast, accurate, and stable” interaction performance. The target voice intelligent auditory solution allows robots to precisely identify target voiceprints, filter out interference from other speakers, and output clear target speech.
Smart Manufacturing for the Future: Co-creating a New Landscape of Embodied Intelligence
From consumer electronics and smart vehicles to embodied intelligence, AAC Technologies has consistently driven industrial upgrading through technological innovation. We offer not only industry-leading sensing technology solutions, but also one-stop delivery assurance from R&D to mass production.
Looking ahead, AAC will continue to leverage its systematic capability advantages and deepen its pursuit of cutting-edge sensing technology, empowering humanoid robots with sharper senses and smarter interactions.
Hearing the Future, Sensing the World. AAC will stand alongside global partners to jointly explore a broader future of perception in the wave of embodied intelligence.