Audio Synchronization Testing Using Synthetic Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio synchronization tests in real-time chorus scenarios are subjective and prone to errors due to reliance on human singing and subjective analysis, leading to inconsistent and inaccurate synchronization results.
Innovation Solution
An automated audio testing method that records first audio from each record-end and second audio from a playback-end, performs audio detection to determine start times and detection times, and calculates synchronization test results objectively, eliminating the need for human singing and subjective analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If human singing and subjective analysis are used for audio synchronization testing, then the testing process is simple to implement, but the accuracy and consistency of synchronization results deteriorate due to human error and subjectivity
Solution Approach 1:
The patent uses test audio (synthetic audio signals) to copy and replace human singing voices in the testing process. This allows automated playback and recording of test audio to simulate real user audio, enabling objective measurement of synchronization between background audio and user audio without human involvement, thus improving accuracy while maintaining ease of implementation
Solution Approach 2:
The patent replaces the mechanical system of human singing and subjective listening analysis with an automated electronic system that plays back test audio, records it along with background audio, and uses audio detection algorithms to objectively determine synchronization status, eliminating human error and subjectivity
2Productivity
If multiple devices are tested simultaneously with automated test audio, then the productivity and efficiency of testing improve, but the device complexity and coordination requirements increase
Solution Approach 1:
The patent segments the testing system into independent record-ends and playback-ends, where each record-end independently plays back test audio and records it along with background audio. This segmentation allows multiple devices to be tested simultaneously without complex coordination, as each device operates independently but contributes to the overall synchronization test results
Solution Approach 2:
The patent creates a universal testing framework where the same test audio and detection methodology can be applied to multiple devices simultaneously. The test audio serves multiple functions: it acts as a timing reference, simulates user audio, and enables parallel testing across different devices, thereby improving productivity without proportionally increasing complexity
Data Source
AI summary
An audio testing method includes: obtaining first recorded audio of each record-end and second recorded audio of a playback-end, both of which include background audio that is simultaneously played, and the first recorded audio further includes test audio which is in one-to-one correspondence with the record-ends; obtaining a start time of the background audio in each first recorded audio by performing audio detection on each first recorded audio; obtaining a start time of the background audio and a detection time of each test audio in the second recorded audio by performing audio detection on the second recorded audio; and determining a synchronization test result for the second recorded audio based on the start time of the background audio and the detection time of each test audio in the second recorded audio, and the start time of the background audio in each first recorded audio.