Audio Signal Adjustment Based on Orientation Variation
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Solution Overview
Problem
Conventional audio signal processing techniques that adjust audio based on orientation changes often mismatch with the surrounding audio situation, causing a sense of incongruity, especially when applied to imaging devices for hand shake correction.
Innovation Solution
An audio signal processing device that includes an audio signal analysis unit, an orientation variation analysis unit, and an audio signal adjustment unit, which set a target value for audio adjustment based on the audio signal and orientation information, adjusting the audio signal's volume, frequency bandwidth, or gain according to the orientation variation amount, while considering threshold values and hysteresis to prevent unnatural behavior and mismatch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio signal is adjusted based on orientation change amount alone, then hand shake correction is achieved, but audio mismatches surrounding audio situation causing sense of incongruity
Solution Approach 1:
The system analyzes the surrounding audio situation and uses this information as feedback to determine whether audio adjustment should be applied. The audio signal analysis unit detects characteristics of the surrounding audio, and this feedback controls the audio signal adjustment unit to either adjust or maintain the audio signal based on the detected situation, preventing incongruous adjustments.
Solution Approach 2:
The system changes the adjustment parameters dynamically based on the surrounding audio situation. When the audio situation indicates that adjustment is appropriate, the system applies orientation-based audio adjustment; when the situation indicates otherwise, the system maintains the original audio signal, effectively changing the adjustment parameter between 'adjust' and 'maintain'.
2Reliability
If audio adjustment is applied continuously, then hand shake correction is maintained, but unnatural behavior occurs due to threshold fluctuations
Solution Approach 1:
The system compares the orientation change amount with a predetermined threshold before applying audio adjustment. This preliminary comparison action prevents unnecessary adjustments when the orientation change is within normal ranges, ensuring that audio adjustment is only applied when actually needed and avoiding unnatural transitions.
Solution Approach 2:
The system dynamically adjusts the audio signal based on real-time orientation change detection. The audio signal adjustment unit continuously monitors orientation changes and adjusts the audio signal accordingly, creating a dynamic response that adapts to the current hand shake condition while maintaining naturalness through threshold-based control.
Data Source
AI summary
An adjustment of an audio signal based on an orientation variation amount is carried out according to a surrounding audio condition. An audio signal processing device includes an audio signal analysis unit, an orientation variation analysis unit, and an audio signal adjustment unit. The audio signal analysis unit acquires an audio signal and sets a target value for an audio adjustment on the basis of the audio signal. The orientation variation analysis unit acquires orientation information and generates an orientation variation amount on the basis of the orientation information. The audio signal adjustment unit adjusts the audio signal toward the target value according to the orientation variation amount.