Distributed Audio Recording for Clear Sound Without External Microphones
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Solution Overview
Problem
Existing methods for recording sounds in noisy environments, such as during live broadcasts or video shooting, often require additional and expensive external devices like wired headsets or wireless microphones, which are cumbersome and not suitable for casual users due to their size, connectivity requirements, and complex setup.
Innovation Solution
A distributed recording system using multiple terminal devices as transmitters and receivers within a wireless network to collect, process, and align audio data, allowing clear recording without the need for external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external recording devices (wired headset or wireless microphone) are used to record sound clearly in noisy environments, then recording quality is improved, but device complexity and ease of operation deteriorate due to additional hardware, connection cables, and manual setup requirements
Solution Approach 1:
The patent merges the functions of multiple terminal devices (camera device and auxiliary devices) into a unified distributed recording system. The camera device coordinates with other terminals to collectively perform audio recording, eliminating the need for separate external recording devices while maintaining clear sound quality through multi-device collaboration.
Solution Approach 2:
The patent enables ordinary terminal devices (smartphones, tablets) to perform specialized recording functions by leveraging their existing microphones and processing capabilities. Through the distributed recording system, these universal devices can function as recording equipment without requiring dedicated external microphones or headsets.
2Measurement precision
If external recording devices are used to achieve clear sound recording, then recording quality is improved, but ease of operation worsens due to wired connections, manual orientation settings, and device removal requirements
Solution Approach 1:
The distributed recording system operates autonomously without requiring manual intervention. The camera device automatically coordinates with auxiliary devices, performs time alignment of audio streams, and manages the recording process end-to-end. Users simply need to initiate recording, and the system handles device coordination, synchronization, and audio processing automatically.
Solution Approach 2:
The patent replaces mechanical connections (wired headsets, physical microphone attachments) with wireless communication between terminal devices. The distributed recording system uses network-based audio transmission and digital signal processing to achieve what previously required physical connections and manual device setup.
3Measurement precision
If professional wireless MIC devices are used for recording, then recording quality is improved, but cost increases due to the need to purchase additional expensive equipment
Solution Approach 1:
The patent creates a virtual recording system that replicates the functionality of expensive professional equipment using existing terminal devices. By leveraging the audio capabilities already present in smartphones and tablets, the system provides professional-grade recording without requiring users to purchase dedicated microphones or recording gear.
Solution Approach 2:
The patent utilizes readily available, low-cost terminal devices that users already possess for everyday purposes. Instead of requiring investment in specialized recording equipment, the system transforms ordinary devices into recording tools, eliminating the need to purchase additional expensive gear while maintaining acceptable recording quality.
4Measurement precision
If wired headset is used for live broadcast, then sound reception is improved, but ease of operation deteriorates due to connection cables limiting activity range
Solution Approach 1:
The patent replaces the mechanical wired connection of headsets with wireless communication between terminal devices. The distributed recording system transmits audio data through wireless networks, eliminating physical cables and enabling users to move freely during live broadcasts while maintaining sound quality.
Data Source
AI summary
A distributed recording system includes a first device and one or more second devices. The first device sends a distributed recording instruction, to control the one or more second devices to perform recording. The one or more second devices send audio data obtained through recording to an upper-layer recording application.