Audio Timing Correction via Grid-Based Transient Alignment
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Solution Overview
Problem
Current graphical user interfaces require manual and inconvenient methods to correct timing of audio signals, which can result in undesirable side effects like pitch variations and clicks during playback.
Innovation Solution
A method to automatically correct timing of audio signals by displaying controls to adjust resolution and degree of correction, using non-linear or linear functions to map time intervals to correction degrees, and aligning audio data streams to a grid based on detected transients or energy centers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual alignment of audio events to grid is performed, then timing correction can be achieved, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The system automatically detects audio events and aligns them to the grid without requiring manual user intervention. The computer itself performs the timing correction by analyzing the audio data and applying grid-based alignment algorithms, eliminating the need for users to manually drag and drop audio events.
Solution Approach 2:
The manual mechanical interaction of dragging and dropping audio events with a mouse is replaced by an automated digital processing system. The system uses signal processing algorithms to detect audio events and automatically calculate their alignment to the grid, substituting manual mechanical operations with automated computational processes.
2Manufacturing precision
If audio events are manually moved to designated times on grid, then timing alignment is achieved, but pitch variations and clicks occur during playback
Solution Approach 1:
The system performs preliminary analysis of the audio data to detect the precise locations of audio events before applying any correction. By预先 identifying the timing and characteristics of each audio event, the system can plan the correction approach to minimize harmful effects like pitch variations and clicks during playback.
Solution Approach 2:
The system adjusts multiple parameters simultaneously during timing correction, including time alignment, pitch preservation, and playback smoothness. By changing these parameters in a coordinated manner rather than simply moving audio events rigidly to grid positions, the system achieves timing alignment while avoiding pitch variations and clicking sounds.
Data Source
AI summary
Exemplary embodiments of methods to automatically correct timing of recorded audio in GUI are summarized here. One or more controls to adjust resolution of timing and degree of correction for the audio are displayed. The resolution of timing relates to heats on a grid and is affected by the degree of correction. The degree of correction is mapped to a time interval at each beat along the grid. Next, a user manipulation of one or more controls selecting a resolution and a degree of correction is received. Correction of timing is performed according to the selected resolution and degree of correction. Correcting of timing may include aligning a transient of the audio to the beat by compressing or stretching a portion of the audio. Compressing or stretching the portion of the audio depends on a length of the portion relative to a distance between adjacent beats.