Vowel-Based Phonetic Distinguishability for Speech Recognition

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Solution Overview

Problem

Current speech-to-text systems face challenges in efficiently recognizing and understanding user input due to the lack of robust phonetically distinguishable options, particularly in small data sets, leading to inaccuracies in speech recognition.

Innovation Solution

A method and system for vowel-based generation of phonetically distinguishable words, utilizing vowel saliency and phonetic weighted distinguishability calculations to process input data into elements, determine their distinguishability, and present non-confusable options to the processing machine.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If speech-to-text systems use standard processing methods, then the system complexity remains low, but the recognition accuracy deteriorates due to phonetic confusion

Engineering Contradiction:
Improverecognition accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments words into phonetic components (consonants and vowels) and processes them separately. The system divides the input speech signal into phonetic elements, evaluates their distinguishability independently, and then reconstructs the meaning. This segmentation allows the system to focus on critical phonetic features that differentiate words, improving recognition accuracy without requiring complex overall system redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by differentiating processing depth based on phonetic element importance. Vowels, which carry more distinguishable information, receive more detailed analysis through vowel saliency evaluation and phonetic weighted distinguishability calculations. Consonants receive standard processing. This localized differentiation of processing quality improves recognition accuracy for critical phonetic features while maintaining reasonable system complexity.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If the system processes all phonetic elements with equal detail, then the processing is simple, but the distinguishability of confusable words deteriorates

Engineering Contradiction:
Improvephonetic distinguishabilityVSAvoidprocessing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent changes the processing parameters based on phonetic element type. Vowels are evaluated using vowel saliency metrics and phonetic weighted distinguishability calculations, while consonants use standard phonetic analysis. The system dynamically adjusts the level of analysis and computational depth according to the phonetic element being processed, improving distinguishability of confusable words without uniformly increasing processing complexity across all elements.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamic processing where the system adapts its analysis depth based on the specific phonetic context. The distinguishability evaluation is dynamically adjusted according to the vowel-consonant structure of each word pair being analyzed. This dynamic approach allows the system to focus computational resources on critical distinguishability assessments rather than applying fixed complex processing to all elements.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If the system uses phonetic vowel-based generation methods, then the accuracy of speech recognition improves, but the computational time increases

Engineering Contradiction:
Improvespeech recognition accuracyVSAvoidcomputational time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies partial action by focusing detailed phonetic analysis only on vowels and critical phonetic elements rather than processing every aspect of each phoneme with equal depth. The system performs vowel saliency evaluation and phonetic weighted distinguishability calculations selectively on elements that most impact word distinguishability. This partial application of complex analysis reduces computational time compared to exhaustive processing while maintaining improved speech recognition accuracy.

Inventive Principle:
Principle #16Partial or excessive action

4Reliability

If the system presents phonetically distinct words as options, then the reliability of speech understanding improves, but the data set size required deteriorates (becomes smaller/more constrained)

Engineering Contradiction:
Improvespeech understanding reliabilityVSAvoiddata set size
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts and focuses on the critical phonetic features (vowels and their saliency) that provide the most information for word distinguishability. By taking out and analyzing only these essential phonetic elements rather than requiring large datasets of diverse examples, the system achieves reliable speech understanding with smaller, more constrained datasets. The extraction of key phonetic features compensates for the reduced data volume.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11869494B2Vowel based generation of phonetically distinguishable words
Publication Date: 2024.01.09 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US11869494B2 patent drawing
  • US11869494B2 patent drawing
  • US11869494B2 patent drawing

AI summary

A system, apparatus and a method for determining distinguishable data, includes processing input data into a plurality of elements, calculating distinguishability of the plurality of elements using phonetic vowels, and determining distinguishable elements from among the plurality of elements, according to the distinguishability calculation.