Audio Loop Tempo Correlation Without Pitch Shift or Data Skips
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Solution Overview
Problem
Current audio signal processing methods fail to dynamically adjust the tempo of newly recorded musical pieces to match a constant reference tempo without causing pitch variations and data skips, leading to unsynchronized loops and poor listening experiences.
Innovation Solution
The method involves dynamically correlating the tempo of a first audio signal with a second audio signal by time stretching or compressing it to match the tempo changes of the second signal, ensuring synchronization and maintaining sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tempo of newly recorded musical pieces is changed to match a constant reference tempo, then synchronization between loops is improved, but pitch variation and audible side effects occur
Solution Approach 1:
The system dynamically adjusts the reference tempo based on the actual tempo of newly recorded musical pieces. Instead of using a fixed constant tempo, the reference tempo is made adaptable and responsive to the characteristics of incoming audio signals, allowing the system to maintain synchronization while preserving the original pitch and timing characteristics of each recording.
Solution Approach 2:
The invention changes the tempo parameter dynamically by analyzing the tempo of each newly recorded piece and adjusting the reference tempo accordingly. This parameter adaptation allows the system to synchronize loops without applying fixed tempo changes that cause pitch variation, thereby eliminating audible side effects while maintaining reliable synchronization.
2Reliability
If the tempo of all newly recorded musical pieces is changed to a constant reference tempo, then loop synchronization is improved, but clicks and pops caused by data skips occur
Solution Approach 1:
The system implements dynamic tempo adjustment where the reference tempo adapts to the tempo characteristics of each newly recorded musical piece. This dynamic approach prevents the rigid tempo changes that cause data skips and subsequent clicks and pops, while still achieving reliable loop synchronization through flexible tempo matching.
Solution Approach 2:
The invention dynamically changes the tempo parameter based on the actual tempo of incoming audio signals rather than applying a constant reference tempo. This parameter adaptation eliminates the abrupt tempo changes that cause data skips and audible artifacts like clicks and pops, while maintaining synchronization reliability.
3Stability of the object's composition
If a constant reference tempo is used for all recorded pieces, then playback consistency is improved, but the ability to adapt to varying recording tempos is reduced
Solution Approach 1:
The system transforms the static reference tempo into a dynamic parameter that automatically adapts to the tempo characteristics of each newly recorded musical piece. This dynamic adjustment maintains playback consistency through systematic tempo matching while simultaneously providing the adaptability needed to handle varying recording tempos without manual intervention.
Solution Approach 2:
The invention implements parameter adaptation where the reference tempo is dynamically changed based on the tempo analysis of incoming audio signals. This approach preserves playback consistency through structured tempo synchronization while enhancing adaptability to accommodate the natural tempo variations present in different musical recordings.
Data Source
AI summary
Exemplary embodiments of methods and apparatuses to correlate changes in one audio signal to another audio signal are described. A first audio signal is outputted. A second audio signal is received. The second audio signal may be stored in a memory buffer. The first audio signal is correlated to conform to the second audio signal. The first audio signal may be dynamically correlated to match with the second audio signal while the second audio signal is received. At least in some embodiments, a size of a musical time unit of the second audio signal is determined to correlate the first audio signal. At least in some embodiments, the adjusted first audio signal is stored in another memory buffer.