Circular MIC Array
Circular microphone layout for surrounding pickup.
Sound source localization
Robot microphone array solutions for sound source localization.
Help service robots, guide robots and AI devices identify where a speaker is, focus on human voice and interact more naturally.
360-degree
All-around pickup
DOA
Direction of arrival
LED
Direction indication
Why localization matters
Robots need to know who is speaking and from which direction.
In human-robot interaction, users may call a device from any angle. Sound source localization helps the robot turn, respond and maintain a more natural interaction flow.
- Detect speaker direction around the robot.
- Improve voice interaction front-end quality.
- Reduce noise and support echo cancellation.
- Provide visual direction feedback through LED indication.
Circular array
All-around pickup with sound source positioning.
Circular microphone array designs support omnidirectional pickup, sound source localization, noise suppression, automatic gain control and speaker output for robots.
Sound Localization
Estimate speaker direction for interaction response.
Audio Processing
Echo cancellation, noise suppression and AGC support.
Selection guidance
Define the robot acoustic layout before selecting a circular microphone array.
Sound source localization is an estimate of incoming sound direction, not a substitute for a complete positioning system. Robot body reflections, built-in speakers and operating noise should be considered during integration.
Direction requirement
Confirm whether the robot needs direction-of-arrival feedback for turning, an LED indication or a voice-interaction trigger.
Mechanical position
Plan array height, grille openings and clearance from motors, fans and body panels that may affect the acoustic path.
Speaker interaction
Where the robot plays audio, share the speaker location and host reference path so echo control can be evaluated.
Recommended products
Product options for this scenario.
HK-QXMIC-V3.0
5-mic circular array module with 360-degree pickup, sound source localization and LED direction indication.
HK-JZMIC-V1.0
2-array 360-degree far-field pickup module with voice enhancement, noise suppression and AGC.
HK-ARRAYMIC-V3.2
4/8 array far-field module for embedded AI voice interaction and smart device designs.
Use cases
Typical device and deployment scenarios.
Service Robot
Reception, shopping mall and hotel assistant robots.
Guide Robot
Exhibition, hospital and public service guide robots.
AI Assistant
Desktop or embedded AI voice interaction devices.
Education Robot
Classroom interaction and voice learning devices.
FAQ
Technical questions before integration.
What is sound source localization?
It estimates the direction from which a sound arrives at the microphone array. A robot can use this direction feedback to orient an interaction or visual indicator.
Can the array identify the exact position of a person?
The array is intended to estimate sound direction. Exact person position depends on the full sensing system, environment and application software.
Is a circular array suitable for a service robot?
A circular layout is well suited to all-around pickup and direction feedback when users may speak from different sides of the robot.
Can the microphone array work with a built-in speaker?
It can be evaluated with echo control and acoustic integration. Speaker position, playback level and enclosure design should be included in sample validation.
Work With HAOKAI
Building a voice-interactive robot?
Share pickup distance, microphone layout, interface, structure, algorithm requirements and target production plan. HAOKAI can recommend or customize a practical audio front-end solution.