Audio Playback Positioning via Segmented Progress Bar
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Solution Overview
Problem
Current music players lack precision in accessing specific points in audio playback due to the absence of scales on progress bars and require cumbersome fast-forward and rewind functions, especially on portable devices, which are not user-friendly for 'tricky play' scenarios.
Innovation Solution
An electronic device system with a processor, memory, and input unit that utilizes digit input to precisely locate positions in audio data by converting digits into time values and addresses, allowing for efficient playback operations like bookmarking and skipping, even on devices without numeric keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a progress bar without scale is used to show music playback progress, then the device complexity is reduced, but the measurement precision of playback position is insufficient
Solution Approach 1:
The progress bar is segmented into multiple selectable portions, allowing users to navigate to specific segments rather than requiring precise continuous positioning. This segmentation enables accurate position access without adding complex scaling mechanisms to the progress bar.
2Device complexity
If fast-forward and rewind functions are used to search for positions in long titles, then the device complexity is reduced, but the loss of time increases
Solution Approach 1:
The system pre-divides the audio title into multiple segments and allows users to directly select target segments for playback. This preliminary segmentation enables users to jump to desired positions without time-consuming fast-forward or rewind operations, significantly reducing position search time.
3Measurement precision
If a pointing device is required to control the cursor on the progress bar, then the measurement precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The progress bar is divided into multiple discrete selectable portions, allowing users to choose from predefined segments rather than requiring precise continuous cursor control. This segmentation maintains position selection accuracy while eliminating the need for pointing devices, greatly improving ease of operation.
4Measurement precision
If the window size of the music player is adjusted to improve precision, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
Instead of relying on window size adjustment to improve precision, the system segments the progress bar into multiple selectable portions. This approach achieves precise position access through discrete segment selection, eliminating the need for complex window size adjustment mechanisms.
Data Source
AI summary
An audio playback positioning method. A processor retrieves audio data from a memory, divides a progress bar showing playback time of the audio data into segments, utilizes a length of a progress bar segment as a unit to perform playback skipping on the audio data, and retrieves an audio data segment through the skipping. The processor further divides a progress bar segment corresponding to the retrieved audio data segment into sub-segments in response to input operations, and utilizes the length of a sub-segment as a unit to perform playback skipping on the retrieved audio data segment to retrieve and perform playback operation on a target position thereon.