Audio Calibration via Terminal-Server Acoustic Parameter Recognition
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Solution Overview
Problem
Conventional audio calibration technologies require professional devices and technicians, making them costly and difficult to adapt to diverse acoustic environments, resulting in inconsistent sound quality during audio playback in different environments.
Innovation Solution
An audio calibration method and system that includes a terminal, a server, and an audio playback device, where the terminal plays test signals and collects ambient sound, uploads the data to the server for environmental acoustic parameter recognition, and generates calibration parameters for the digital equalizer, which are then applied to the audio playback device for calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional audio calibration technologies are used, then professional devices and technicians can achieve accurate calibration, but the cost increases and the process becomes complicated
Solution Approach 1:
The audio playback device automatically performs calibration by playing test signals, collecting ambient sound through its own microphone, and processing the data through algorithms to generate calibration parameters without requiring external professional devices or technicians
Solution Approach 2:
The patent replaces physical professional calibration devices with software-based algorithms that process audio data computationally to achieve calibration, substituting mechanical/professional equipment with digital signal processing
2Measurement precision
If conventional audio calibration technologies are used, then accurate calibration can be achieved, but the adaptability to diverse acoustic environments decreases
Solution Approach 1:
The system dynamically adjusts calibration parameters based on detected acoustic environment characteristics such as room size, reverberation time, and frequency response, allowing adaptation to diverse environments through parameter modification rather than fixed calibration settings
Solution Approach 2:
The calibration system transitions from static pre-defined calibration profiles to dynamic real-time calibration that adapts to the actual acoustic environment by continuously analyzing test signal responses and adjusting parameters accordingly
3Measurement precision
If professional calibration devices and technicians are used, then calibration quality improves, but the operation becomes less user-friendly
Solution Approach 1:
The audio playback device autonomously performs the entire calibration process including test signal playback, ambient sound collection, data processing, and parameter generation without requiring user expertise or intervention beyond initiating the calibration function
Solution Approach 2:
The audio playback device integrates multiple functions including test signal generation, microphone input, data processing, and calibration parameter application into a single device, eliminating the need for separate professional calibration equipment
Data Source
AI summary
Disclosed is an audio calibration method that is applied to an audio calibration system. The audio calibration system includes a terminal, a server and an audio playback device, and the method includes: playing, by the terminal, at least one kind of test signal in response to a sound collection command, and performing ambient sound collection to obtain target audio data; uploading, by the terminal, the target audio data to the server, performing, by the server, environmental acoustic parameter recognition on the target audio data to obtain target environmental acoustic parameters; generating, by the server, a calibration parameter of a digital equalizer based on the target environmental acoustic parameters to obtain a target calibration parameter; sending, by the server, the target calibration parameter to the terminal, and transmitting, by the terminal, the received target calibration parameter to the audio playback device.