Force-to-Audio Conversion System with Sub-30ms Latency

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Solution Overview

Problem

Existing devices that convert detected forces into auditory signals suffer from latency issues, which impair immersion in gaming and entertainment environments, and lack the ability to provide a vivid, user-defined sound experience.

Innovation Solution

An arrangement comprising a sensor unit with an accelerometer capable of measuring acceleration, a processing unit that converts force signals into digital auditory signals, and an output unit that generates immersive audio feedback with reduced latency, using machine learning algorithms to recognize movement sequences and generate specific sound patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless connection and data transmission between controller and base station is implemented, then gesture recognition and motion sensitivity are enabled, but latency increases above acceptable threshold

Engineering Contradiction:
Improvegesture recognition capabilityVSAvoidlatency
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system is divided into two functional segments: a base station that performs complex gesture recognition and audio processing, and a simple controller that only detects motion and transmits minimal data. This segmentation allows the controller to remain simple with low latency while the base station handles the computationally intensive tasks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A processed motion signal acts as an intermediary between the physical controller movement and the audio output. Instead of transmitting raw sensor data or waiting for complex processing, the system uses a simplified motion signal that directly triggers pre-determined audio responses, reducing the overall system latency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If complex audio processing and retro file format conversion are implemented, then interactive music playback is enabled, but processing time increases

Engineering Contradiction:
Improveinteractive music playback capabilityVSAvoidprocessing speed
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

Audio files are pre-processed and converted into a specialized retro file format that contains pre-calculated motion-to-audio mappings. This preliminary action allows the system to skip complex real-time audio processing and simply look up and play back the appropriate pre-processed audio segments based on detected motion, dramatically improving processing speed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of processing original audio files in real-time, the system uses copied and pre-processed audio segments stored in the retro file format. These copied audio segments are optimized for quick retrieval and playback, sacrificing some flexibility but gaining significant processing speed for interactive applications.

Inventive Principle:
Principle #26Copying

3Device complexity

If standard audio processing latency is accepted, then system complexity is reduced, but user immersion and engagement deteriorate

Engineering Contradiction:
Improvesystem simplicityVSAvoiduser immersion
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system changes the latency parameter from standard audio processing values (typically 100ms or more) to ultra-low latency values (targeting under 30ms). This parameter change is achieved through the combination of simplified controller processing, optimized wireless communication protocols, and pre-processed audio files, maintaining system simplicity while dramatically improving user immersion.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution reduces latency to less than 30 milliseconds, providing an enhanced immersive audio experience that closely relates to the triggering movement and allows for user-defined sound patterns, improving user engagement and immersion in entertainment applications.

Implementation Method 1

at least one sensor for generating the force signal form the at least one detected force... The at least one sensor is preferably comprised in the sensing unit

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Data Source

PatentUS11393437B2Arrangement and method for the conversion of at least one detected force from the movement of a sensing unit into an auditory signal
Publication Date: 2022.07.19 MICTIC AG
  • US11393437B2 patent drawing

AI summary

An arrangement for the conversion of at least one detected force from the movement of a sensing unit into an auditory signal. The arrangement includes at least one sensor for generating a force signal from the at least one detected force. A processing unit is configured for converting the force signal into a digital auditory signal. An output unit for converting the digital auditory signal into an auditory signal is further included wherein the digital auditory signal includes in formation of acceleration, strength and duration of a single detected force. The present method is used for converting at least one detected force affecting an object into auditory signal, as well as the use of an arrangement according to the present invention for various entertainment and/or therapeutic purposes.