Pace-Aware Music Playback With Real-Time Tempo Synchronization
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Solution Overview
Problem
Conventional music players lack the ability to dynamically adjust music tempo in real-time based on a runner's pace, terrain, and run profile, leading to suboptimal audio synchronization and listening experience during exercise.
Innovation Solution
A music player system that incorporates pace tracking circuitry, sensors, and positioning technology to select songs and adjust tempo through time-stretching, ensuring audio synchronization with the runner's pace by using data from sensors, positioning, and run profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional music players play music at fixed tempo, then device complexity is low, but audio synchronization with runner's pace is poor
Solution Approach 1:
The music player dynamically adjusts the tempo of music playback in real-time based on the runner's pace detected by sensors. The system continuously monitors running speed and modifies music playback speed accordingly, transforming a static playback system into a dynamic one that adapts to changing running conditions.
Solution Approach 2:
The system uses sensor data to continuously monitor the runner's pace and feeds this information back to the music playback system. This feedback loop enables automatic tempo adjustment without user intervention, with the sensor detecting pace and the system responding by modifying music speed to maintain synchronization.
2Adaptability or versatility
If music tempo is adjusted in real-time based on runner's pace, then audio synchronization is improved, but device complexity increases
Solution Approach 1:
The music player integrates multiple functions into a single device: music playback, sensor data acquisition, pace detection, and automatic tempo adjustment. This multi-functionality allows the system to adapt to different running paces without requiring separate dedicated devices for each function.
Solution Approach 2:
The system automatically detects the runner's pace through integrated sensors and self-adjusts the music tempo without requiring manual user input or external control. The device serves itself by autonomously monitoring running conditions and modifying playback parameters accordingly.
3Reliability
If time-stretching is used to adjust tempo, then audio synchronization is maintained, but audio quality may deteriorate
Solution Approach 1:
The system modifies the temporal parameters of the audio signal through time-stretching techniques, adjusting playback speed to match the runner's pace while attempting to preserve audio quality. This involves changing the time domain characteristics of the music without significantly affecting frequency content.
Data Source
AI summary
An electronic device may comprise audio processing circuitry, pace tracking circuitry, and positioning circuitry. The pace tracking circuitry may be operable to selects a tempo of songs for playback, by the audio processing circuitry based on position data generated by the positioning circuitry, a desired tempo, and whether the songs are stored locally or network-accessible. The position data may indicate the pace of a runner during a preceding, determined time interval. The pace tracking circuitry may control the song selection and/or time stretching based on a runner profile data stored in memory of the music device. The profile data may include runner's distance-per-stride data. The electronic device may include sensors operable to function as a pedometer. The pace tracking circuitry may update the distance-per-stride data based on the position data and based on data output by the one or more sensors.