Prompt Voice Frequency Adjustment for Noise-Resistant Audio Output

Solution Overview

Problem

Conventional automatic voice adjustment technologies fail to ensure clear voice output in noisy environments, leading to increased power consumption and potential speaker damage, as they primarily adjust voice amplitude rather than frequency.

Innovation Solution

An apparatus and method that adjust the output frequency of a prompt voice based on environmental background noise, using a receiver module to capture background sound, an analyzer module to generate a control signal, and an output module to adjust the frequency, maintaining consistent power usage and preventing speaker damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the voice amplitude is adjusted higher to be heard clearly in noisy environments, then the voice clarity is improved, but the speaker power consumption increases and the speaker may be damaged

Engineering Contradiction:

Improvevoice clarityVSAvoidspeaker power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the parameter from voice amplitude to voice frequency. By detecting background noise levels and adjusting the output frequency of the prompt voice accordingly (higher frequency in noisy environments, lower frequency in quiet environments), the system achieves clear voice output without increasing power consumption or risking speaker damage, as frequency adjustment does not require increased power unlike amplitude adjustment

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the voice amplitude is adjusted higher to be heard clearly in noisy environments, then the voice clarity is improved, but the speaker lifespan decreases due to high power usage

Engineering Contradiction:

Improvevoice clarityVSAvoidspeaker lifespan

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the parameter from voice amplitude to voice frequency. By detecting background noise levels and adjusting the output frequency of the prompt voice accordingly (higher frequency in noisy environments, lower frequency in quiet environments), the system achieves clear voice output without increasing power consumption or risking speaker damage, as frequency adjustment does not require increased power unlike amplitude adjustment

Inventive Principle:

Principle #35Parameter changes

3Reliability

If manual volume adjustment is required for different environments, then the voice can be optimized for each condition, but the user convenience deteriorates

Engineering Contradiction:

Improvevoice optimizationVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent implements self-service by having the system automatically detect the background noise environment and adjust the prompt voice frequency without user intervention. The analyzer module continuously monitors the environment and the output module automatically adjusts the frequency, making the system adapt to different conditions autonomously and eliminating the need for manual user adjustment

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent employs feedback through the analyzer module that continuously monitors the background noise environment and provides input to the output module to adjust the prompt voice frequency accordingly. This closed-loop feedback system ensures the voice output is continuously optimized based on real-time environmental conditions without requiring user action

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS8050926B2Apparatus and method for adjusting prompt voice depending on environment

Publication Date: 2011.11.01 MICRO STAR INTERNATIONAL CO LTD

AI summary

An apparatus for adjusting a prompt voice depending on an environment comprises a receiver module used for receiving a background sound, an analyzer module generating a control signal according to the background sound and an output module adjusting an output frequency of a prompt voice through the control signal and outputting the adjusted prompt voice.