Audio Tempo Control via Heart Rate Feedback
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Solution Overview
Problem
Athletes face challenges in matching their workout pace with music tempo, as existing audio systems do not dynamically adjust tempo based on real-time heart rate feedback to maintain a target heart rate during exercise.
Innovation Solution
A system and method that measures a user's heart rate and adjusts audio tempo in real-time by switching between audio files with faster or slower tempos to align with target heart rate zones, such as warm-up, workout, and cool-down phases, using a processor connected to a heart rate monitor and audio output devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio tempo is fixed and does not adjust dynamically, then audio system is simple and easy to operate, but it cannot maintain target heart rate during exercise
Solution Approach 1:
The audio system dynamically adjusts tempo based on real-time heart rate feedback. The processor monitors heart rate data from the heart rate monitor and automatically selects audio files with appropriate tempos from a library, enabling the system to adapt to changing exercise intensities and maintain target heart rate zones without manual intervention.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where the heart rate monitor continuously measures the user's heart rate, the processor compares the measured heart rate against target zones, and the audio output adjusts tempo accordingly. This feedback loop ensures the audio tempo remains synchronized with the user's physiological state throughout the exercise session.
2Reliability
If audio tempo manually matches workout pace, then user can control audio selection, but user cannot maintain precise target heart rate zones
Solution Approach 1:
The system performs automatic tempo selection and audio file switching based on heart rate data without requiring user intervention. The processor autonomously monitors heart rate, determines the appropriate target heart rate zone, selects matching audio files from the library, and adjusts playback tempo automatically, allowing users to focus on exercise rather than audio management.
Solution Approach 2:
The manual process of selecting and adjusting audio tempo is replaced by an automated electronic system. The heart rate monitor and processor work together to automatically select and switch between audio files with different tempos, eliminating the need for manual audio control while maintaining precise synchronization with heart rate zones.
3Reliability
If audio system switches between multiple audio files with different tempos, then target heart rate can be maintained, but audio system complexity increases
Solution Approach 1:
Audio files with different tempos are pre-loaded into the audio library before the exercise session begins. The processor can immediately select and switch between these pre-prepared audio files based on real-time heart rate data, eliminating the need for complex real-time audio generation or downloading during exercise and simplifying the system architecture.
Data Source
AI summary
A method for controlling an audio output comprises playing a first audio file having a first tempo, measuring a first heart rate of a user, determining whether the first heart rate of the user is greater than a target heart rate, and playing a second audio file having a second tempo, the second tempo is slower than the first tempo, responsive to determining that the first heart rate of the user is greater than the target heart rate.