Virtual Instrument Chord Touch Regions for Intuitive Orchestral Simulation
Solution Overview
Problem
Virtual musical instruments often require users to have keyboard proficiency and musical knowledge to produce pleasing sounds, making them inaccessible to non-musicians and those unfamiliar with traditional instruments, as they lack tactile stimuli and intuitive interfaces for simulating orchestral instruments.
Innovation Solution
A user interface with chord touch regions arranged by fifths, featuring touch zones that detect legato, pizzicato, and staccato articulations, allowing users to simulate orchestral string instrument techniques and modulate note and chord progressions through swipe gestures, enabling smooth transitions and cross-fading of audio signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a virtual instrument interface closely resembles the actual instrument (e.g., keyboard, fret board), then the interface provides intuitive representation, but users must understand how to play notes, chords, and chord progressions on a real musical instrument to produce pleasing sounds
Solution Approach 1:
The interface is segmented into chord regions, each representing a specific chord quality (major, minor, diminished, augmented) for a given root note. This segmentation allows users to access entire chords by touching a single region, eliminating the need to learn individual note positions and chord formations on traditional keyboard or fretboard layouts.
Solution Approach 2:
The patent introduces an intermediary layer between the user and the audio output by implementing a chromatic scale organization system. This intermediary structure transforms the complex mapping of traditional instrument techniques into a simplified chromatic framework where adjacent regions represent semitone relationships, providing intuitive navigation without requiring knowledge of real instrument fingerings.
2Reliability
If traditional MIDI keyboards are used as samplers to recreate orchestral sounds, then the system can produce realistic instrument tones, but users require keyboard proficiency and musical knowledge to create pleasing melodic or harmonic phrases
Solution Approach 1:
The system performs preliminary organization of chords according to chromatic scale relationships, pre-arranging all possible chord qualities for each root note in adjacent regions. This preliminary structuring allows users to intuitively create harmonically correct progressions by simply moving between adjacent regions, eliminating the need to learn music theory or chord construction rules while maintaining high audio quality.
Solution Approach 2:
The interface implements parameter changes by organizing chord regions based on chromatic scale parameters rather than traditional keyboard or fretboard layouts. This parameter reorganization transforms the operational complexity from requiring knowledge of instrument-specific techniques to requiring only basic understanding of chromatic relationships, significantly lowering the barrier to creating pleasing musical phrases.
3Productivity
If users attempt to recreate music on a virtual instrument interface, then musical performance is achieved, but the lack of tactile stimulus (e.g., weighted keys, strings, bow) makes it difficult to replicate the same musical proficiency
Solution Approach 1:
The patent replaces the mechanical tactile feedback systems of traditional instruments (weighted keys, string tension, bow resistance) with a touch-sensitive interface that detects and responds to touch gestures. The system substitutes physical resistance and tactile cues with digital signal processing that interprets touch duration, pressure, and movement to generate appropriate articulations, thereby maintaining musical performance capability without requiring adaptation to new tactile patterns.
Data Source
AI summary
A user interface implemented on a touch-sensitive display for a virtual musical instrument comprising a plurality of chord touch regions configured in a predetermined sequence, each chord touch region corresponding to a chord in a musical key and being divided into a plurality of separate touch zones, the plurality of chord touch regions defining a predetermined set of chords, where each of the plurality of separate touch zones in each region is associated with one or more preselected MIDI files stored in a computer-readable medium. In some embodiments, the touch zones are configured to provide different harmonic configurations of a base chord associated with the chord touch region. Some harmonic configurations provide progressively wider harmonic ranges across each adjacent touch zone. Other harmonic configurations can provide chords with a progressively higher relative pitch across each adjacent touch zone.