Audio Playback Tempo Control for Walking Comfort
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Solution Overview
Problem
Existing audio reproducing devices for walking or running often cause discomfort when music tempo suddenly changes to match a user's changing walking tempo, leading to an unpleasant listening experience.
Innovation Solution
An audio signal reproducing apparatus with a storage unit, detecting unit, calculating circuit, and control circuit that adjusts music playback to match the user's walking tempo, introducing a delay when switching from one tempo to another to prevent sudden changes, ensuring a smooth transition in music tempo.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the music tempo is changed immediately to match the walking tempo, then the music tempo matches the walking tempo, but the user feels discomfort due to sudden changes
Solution Approach 1:
The system performs preliminary action by detecting changes in walking tempo in advance and preparing for tempo transitions before they occur. The control circuit monitors walking tempo continuously and anticipates the need for music tempo adjustment, allowing for smoother transitions that prevent user discomfort while maintaining adaptability to the user's actual walking pace.
2Object-affected harmful factors
If the music tempo changes smoothly with delay, then user comfort is improved, but the response time to match walking tempo increases
Solution Approach 1:
The system applies dynamics by implementing a variable delay mechanism that adjusts the timing of music tempo changes based on the magnitude and nature of walking tempo changes. For gradual walking tempo changes, the system applies longer delays for smooth transitions, while for significant changes, it reduces the delay to maintain responsiveness. This dynamic adjustment optimizes both user comfort and response time.
3Adaptability or versatility
If the walking tempo detection is continuous, then the music tempo can be adjusted frequently, but the system complexity increases
Solution Approach 1:
The system implements feedback by continuously detecting walking tempo and using this information to control music tempo adjustments. The control circuit receives feedback from the walking tempo detection unit and automatically adjusts the music playback tempo accordingly, creating a closed-loop system that maintains adaptability while managing complexity through automated control rather than manual intervention.
Data Source
AI summary
An audio signal reproducing apparatus includes a storage unit for storing digital audio data of music pieces each having a tempo corresponding to either a first tempo or a second tempo, the second tempo being different from the first tempo, if a walking tempo of a user is either the first tempo or the second tempo, a reproducing circuit for reproducing the digital audio data, a detecting unit for detecting the walking tempos of the user, a calculating circuit for calculating a change in the walking tempo detected by the detecting unit, and a control circuit for retrieving the digital audio data from the storage unit in accordance with the walking tempo detected by the detecting unit and sending the retrieved digital audio data to the reproducing circuit.