Touch Interface Cue Point Control for Digital Media
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Solution Overview
Problem
Current DJ software for tablet computers lacks advanced interaction methods for professional DJing, relying heavily on skeuomorphic designs and requiring pre-defined cue points, which limits their functionality and usability for seamless playback control of digital multimedia data.
Innovation Solution
A touch-sensitive device with a graphical user interface that allows direct and interactive control of cue points within multimedia tracks, enabling playback manipulation through gestures on a waveform view, with dynamic beat-grid adjustment and on-the-fly play-position relocation, allowing users to start playback at desired positions without pre-defining cues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If DJ software for tablet computers uses skeuomorphic designs with pre-defined cue points, then the interface resembles physical DJ equipment, but the functionality and interaction methods are limited for professional DJing
Solution Approach 1:
The patent implements dynamic beat-grid adjustment that automatically adapts to the tempo and structure of the music track being analyzed. The beat-grid markers are not fixed but dynamically positioned based on real-time audio analysis, allowing the interface to adapt its structure to match the musical content. This resolves the contradiction by making the interface both visually appealing (structured like physical equipment) and highly adaptable to different tracks and DJing styles.
Solution Approach 2:
The system allows real-time modification of playback parameters including tempo, pitch, and beat-grid density without requiring pre-defined settings. Users can adjust these parameters on-the-fly during playback, transforming the static pre-defined cue point approach into a dynamic parameter-adjustable system that provides professional-grade versatility while maintaining an accessible interface.
2Ease of operation
If DJ software requires pre-defining a fix set of cue points, then the setup process is simplified, but the ability to perform seamless playback control and on-the-fly manipulation is limited
Solution Approach 1:
The system performs preliminary automatic beat-detection and beat-grid generation before the DJ needs to use it. The audio analysis and marker placement happen automatically in advance, preparing the track structure without requiring manual cue point definition. This preliminary automated action simplifies setup while maintaining full flexibility for subsequent on-the-fly manipulation during actual DJing.
Solution Approach 2:
The software performs self-service by automatically analyzing the audio track, detecting beats, and generating the beat-grid without user intervention. The system serves itself by autonomously preparing the playback structure, eliminating the need for manual cue point definition while enabling sophisticated real-time control. This self-service approach resolves the contradiction between simple setup and high productivity.
3Device complexity
If DJ software uses fixed cue points, then the software structure is simpler, but the capability for dynamic playback manipulation and scratch control is reduced
Solution Approach 1:
The beat-grid markers are implemented as dynamic rather than static elements. Their positions are determined by real-time audio analysis of beat locations, allowing them to adapt to different tempos and musical structures. This dynamic structure maintains relative simplicity in implementation while providing high adaptability for various playback manipulation techniques including scratching, looping, and tempo matching.
Solution Approach 2:
The beat-grid system serves multiple functions simultaneously: it visualizes the beat structure, enables precise playback positioning, supports scratch control, facilitates tempo matching, and provides the basis for automatic synchronization. This multi-functional design achieves high versatility without proportionally increasing software complexity, as the same underlying beat-detection infrastructure supports all these operations.
4Ease of manufacture
If DJ software for tablets lacks enhanced interaction means, then the application is simpler to implement, but it is not applicable for professional DJing
Solution Approach 1:
The patent replaces traditional mechanical DJ controls (turntables, mixers with physical faders and knobs) with touch-sensitive interface elements on a tablet. The touch-sensitive display with visual feedback from the beat-grid and waveform representation provides equivalent control functionality through software-based interaction. This substitution maintains professional applicability while simplifying the physical implementation to a single tablet device.
Solution Approach 2:
The beat-grid visualization acts as an intermediary between the audio signal and the user's control actions. It translates complex audio timing information into simple visual markers that guide touch interactions. This intermediary layer enables professional-grade precision in playback control while keeping the interface simple and intuitive, resolving the contradiction between implementation simplicity and professional reliability.
Data Source
AI summary
A device and/or method controls playback of digital multimedia data and comprises, at least in part, at least one touch-sensitive graphical user interface for data input and data output. The device is configured for displaying data input, data output, a representation of at least a part of the multimedia data, and at least one marker for indicating a position within the multimedia data for starting playback, wherein at least a part of the at least one marker has assigned a region of the representation, and for playing back, in response to a touch gesture, the multimedia data, where the touch gesture contacts a region, and where the playback starts from a position indicated by the marker, which has assigned the contacted region.