Sender-Responsive Text-to-Speech Voice Model Adaptation

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Solution Overview

Problem

Current text-to-speech (TTS) technologies produce synthesized speech that sounds artificial and lacks natural human-like prosody, leading to user confusion and disappointment, with solutions involving extensive voice data collection and sophisticated algorithms being time-consuming and costly.

Innovation Solution

A method that receives and processes text inputs responsive to distinguishing characteristics of the sender, such as acoustic and demographic information, to produce synthesized speech that mimics the sender's voice, using a text-to-speech system that stores and adapts voice models based on previous communication sessions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If more recorded voice data is collected and more sophisticated TTS processing algorithms are developed, then TTS quality is improved, but time and cost increase significantly

Engineering Contradiction:
ImproveTTS qualityVSAvoiddevelopment time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary voice characteristic analysis during initial communication sessions with the sender, storing distinguishing characteristics (acoustic features, pitch, tone, prosody) in advance. When text input is received, the pre-stored voice characteristics are immediately applied to generate natural-sounding synthesized speech, eliminating the need for time-consuming data collection and algorithm development while maintaining high TTS quality

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates simplified voice models by copying and storing key distinguishing characteristics of the sender's voice during initial interactions. These copied voice characteristics are then reused for subsequent TTS operations, achieving natural speech synthesis without requiring extensive voice data collection or complex algorithm development for each new application

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If more recorded voice data is collected and more sophisticated TTS processing algorithms are developed, then TTS quality is improved, but cost increases significantly

Engineering Contradiction:
ImproveTTS qualityVSAvoiddevelopment cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The system creates simplified voice models by copying and storing key distinguishing characteristics of the sender's voice during initial interactions. These copied voice characteristics are then reused for subsequent TTS operations, achieving natural speech synthesis without requiring extensive voice data collection or complex algorithm development for each new application

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system modifies TTS output by adjusting parameters such as pitch, tone, and prosodic characteristics based on pre-analyzed voice data from the sender. By changing these acoustic parameters rather than using complex algorithms, the system achieves natural-sounding speech at lower computational and financial cost

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If conventional TTS systems are used, then system complexity is reduced, but synthesized speech sounds artificial and lacks natural prosody

Engineering Contradiction:
Improvesystem complexityVSAvoidprosodic characteristics
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The system performs preliminary voice characteristic analysis during initial communication sessions with the sender, storing distinguishing characteristics (acoustic features, pitch, tone, prosody) in advance. When text input is received, the pre-stored voice characteristics are immediately applied to generate natural-sounding synthesized speech, eliminating the need for time-consuming data collection and algorithm development while maintaining high TTS quality

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback mechanisms that analyze the sender's voice characteristics during communication sessions and use this information to adaptively adjust TTS parameters. This feedback loop enables the system to improve prosodic characteristics and naturalness of synthesized speech without requiring complex algorithms or extensive data collection

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9570066B2Sender-responsive text-to-speech processing
Publication Date: 2017.02.14 GENERAL MOTORS LLC
  • US9570066B2 patent drawing
  • US9570066B2 patent drawing
  • US9570066B2 patent drawing

AI summary

A method of speech synthesis including receiving a text input sent by a sender, processing the text input responsive to at least one distinguishing characteristic of the sender to produce synthesized speech that is representative of a voice of the sender, and communicating the synthesized speech to a recipient user of the system.