Audio Algorithm Selection via Microphone Location Detection
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Solution Overview
Problem
Existing electronic devices face challenges in accurately recognizing user voice commands, especially in noisy environments, due to the need for manual configuration of audio processing algorithms based on the number, arrangement, and direction of microphones, which is cumbersome and inefficient.
Innovation Solution
An electronic device that employs multiple microphones, a processor, and memory to automatically recognize microphone connections, generate audio signals, identify microphone locations, determine an appropriate audio processing algorithm, and update firmware to process audio information effectively, thereby improving voice recognition performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual configuration of audio processing algorithms is performed based on microphone arrangements, then voice recognition accuracy can be optimized, but the complexity and time required for device setup and configuration increases
Solution Approach 1:
The electronic device automatically performs the following operations without user intervention: outputs test audio signals through speakers, captures signals through microphones, identifies microphone locations based on captured signals, and selects appropriate audio processing algorithms based on identified arrangements. This self-configuration mechanism eliminates manual setup complexity while maintaining optimized voice recognition accuracy
Solution Approach 2:
The system dynamically changes algorithm selection parameters based on detected microphone arrangement parameters. By automatically identifying microphone locations and adjusting algorithm parameters accordingly, the system adapts to different device configurations without requiring manual parameter setting, thus resolving the contradiction between optimization accuracy and configuration complexity
2Productivity
If different audio processing algorithms are configured for different microphone arrangements, then processing performance improves, but the difficulty of detecting and measuring microphone location increases
Solution Approach 1:
The system performs preliminary location detection by outputting test audio signals before normal operation. Speakers emit known test signals that propagate through the device, and microphones capture these signals. Based on the captured test signals, the system calculates microphone locations and arrangements. This preliminary detection phase simplifies the subsequent algorithm selection process by establishing accurate location data in advance
Solution Approach 2:
Test audio signals serve as an intermediary medium to facilitate microphone location detection. By using known test signals emitted from speakers and captured by microphones, the system creates a measurable acoustic field that reveals microphone positions. This intermediary approach converts the difficult task of direct location measurement into a simpler signal analysis problem
3Adaptability or versatility
If automatic firmware updates are implemented to adapt audio processing algorithms, then adaptability to different microphone configurations improves, but the loss of time for firmware updates occurs
Solution Approach 1:
The system performs preliminary detection of microphone arrangements and pre-selects appropriate audio processing algorithms before firmware updates are executed. By identifying device configurations in advance and preparing corresponding algorithms, the system minimizes the actual update execution time while maintaining high adaptability to different microphone configurations
Data Source
AI summary
An electronic device includes a plurality of microphones, a memory configured to store a plurality of instructions, and a processor operatively connected to the plurality of microphones and the memory. The plurality of instructions cause the electronic device to recognize connection of the plurality of microphones to the electronic device and obtain connection information for the plurality of microphones. The plurality of instructions further cause the electronic device to generate a signal for outputting an audio signal, obtain multiple pieces of audio information corresponding to the output audio signal, through the plurality of microphones, identify location information for the plurality of microphones, determine an audio information processing algorithm corresponding to the connection information and the location information, and execute a firmware update for the processor such that the multiple pieces of audio information obtained through the plurality of microphones is processed by using the determined audio information processing algorithm.