Hearing Aid Speech Consistency Engine

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Solution Overview

Problem

Modern hearing aids do not effectively account for varying speech artifacts and idiosyncratic speech patterns, making it difficult for users to understand speech in environments with concurrent visual input, such as classrooms or lectures, as they often require focus on the auditory presentation at the expense of visual information.

Innovation Solution

A hearing assistance system that includes a portable computing device with an audio processing component and speech consistency engine, which receives human speech, converts it to text, and then to consistent speech using a text-to-speech protocol, allowing users to specify preferences for speech characteristics like pausing and intonation, ensuring consistent speech presentation regardless of the speaker's style.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hearing aids amplify ambient sound to compensate for hearing loss, then hearing ability is improved, but speech consistency and understanding in complex environments deteriorates

Engineering Contradiction:
Improvehearing abilityVSAvoidspeech consistency
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent introduces an intermediary processing system that converts variable human speech into consistent speech through text-to-speech synthesis. This intermediary process acts as a mediator between the original speech signal and the user's perception, standardizing speech characteristics while preserving content information.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system changes speech parameters by converting variable speech into consistent speech with standardized characteristics. This involves transforming the acoustic parameters of speech to achieve consistency in delivery while maintaining the informational content.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If hearing aids provide amplified speech output, then auditory input is improved, but user concentration on visual information deteriorates

Engineering Contradiction:
Improveauditory inputVSAvoiduser concentration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By introducing consistent speech as an intermediary representation, the system reduces the cognitive load required to process variable speech patterns. This allows users to process auditory information more efficiently without sacrificing attention to visual materials.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system applies speech consistency processing selectively to enhance understanding without over-processing all audio signals. This partial application of the consistency transformation focuses computational resources on improving speech comprehension while maintaining natural audio characteristics for non-speech sounds.

Inventive Principle:
Principle #16Partial or excessive action

3Speed

If hearing aids process speech in real-time, then responsiveness is improved, but processing complexity increases

Engineering Contradiction:
ImproveresponsivenessVSAvoidprocessing complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent segments the speech processing task into distinct stages: capturing variable speech, converting to text, synthesizing consistent speech, and outputting the result. This segmentation allows each processing stage to be optimized independently and facilitates real-time operation through modular computation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system replaces complex acoustic signal processing with text-based intermediate representation and text-to-speech synthesis. This substitution simplifies the processing architecture by working with discrete text units rather than continuous acoustic signals, reducing computational complexity while maintaining real-time responsiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS8781836B2Hearing assistance system for providing consistent human speech
Publication Date: 2014.07.15 APPLE INC
  • US8781836B2 patent drawing
  • US8781836B2 patent drawing
  • US8781836B2 patent drawing

AI summary

Broadly speaking, the embodiments disclosed herein describe an apparatus, system, and method that allows a user of a hearing assistance system to perceive consistent human speech. The consistent human speech can be based upon user specific preferences.