Voice Recording Beamforming Adaptation for Noise Isolation

Solution Overview

Problem

Existing electronic devices lack the ability to adapt voice recording modes to various environments, resulting in inadequate noise elimination and unsuitable sound beamforming directions during voice recording.

Innovation Solution

A method and apparatus for voice recording in electronic devices that utilize a microphone array to control sound beamforming directions based on selected voice recording modes, allowing for specific beamforming settings for different recording scenarios, such as general, interview, and dialog modes, through a user interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If dedicated microphones are used for voice recording with ambient noise elimination, then voice recording function is provided, but voice recording modes suitable for various environments are not provided

Engineering Contradiction:

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by enabling a single microphone array to perform multiple voice recording modes (general, interview, dialog, conference) through different beamforming configurations. The same hardware infrastructure supports diverse recording scenarios by dynamically adjusting beamforming directions and patterns based on the selected mode, eliminating the need for separate dedicated microphones for each mode.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements dynamics by making the beamforming configuration adjustable and adaptable based on the selected voice recording mode. The system dynamically changes beamforming directions, patterns, and parameters according to whether general, interview, dialog, or conference mode is selected, allowing the microphone array to optimize its performance for different environmental requirements without physical reconfiguration.

Inventive Principle:

Principle #15Dynamics

2Reliability

If ambient noise is eliminated through dedicated microphones, then voice recording is performed, but sound beamforming direction is not controlled according to recording mode

Engineering Contradiction:

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system applies self-service by automatically determining and adjusting beamforming directions based on the selected voice recording mode without requiring manual intervention. When a user selects a recording mode (general, interview, dialog, or conference), the system automatically configures the appropriate beamforming pattern and direction, eliminating the need for users to manually control complex beamforming parameters while ensuring optimal voice signal quality for each scenario.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent implements parameter changes by adjusting beamforming parameters (directions, patterns, weights) according to the selected voice recording mode. The system changes these parameters dynamically based on whether general, interview, dialog, or conference mode is active, optimizing voice signal quality for each mode while keeping the operation simple for users through automatic mode-based configuration.

Inventive Principle:

Principle #35Parameter changes

3Manufacturing precision

If voice recording is performed without mode-specific beamforming, then recording is simple, but recording quality is inadequate for specific situations

Engineering Contradiction:

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by using a single microphone array to achieve multiple specialized recording qualities through mode-specific beamforming configurations. The same hardware delivers optimized performance for general recording, interview scenarios, dialog situations, and conference environments by dynamically adjusting beamforming parameters, providing high-quality recording for each situation without requiring separate specialized hardware for each mode.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements parameter changes by adjusting beamforming parameters (directions, patterns, sensitivity) according to the selected voice recording mode. This allows the system to optimize recording quality for specific situations (interview, dialog, conference) by changing parameters dynamically, achieving manufacturing precision equivalent to dedicated microphones for each mode while using a universal microphone array platform.

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

Enables high-quality voice recording by adapting beamforming directions to suit specific recording situations, effectively isolating desired voice signals and reducing ambient noise, improving recording quality across various environments.

Implementation Method 1

a microphone array including a plurality of microphones

Methodology Applied

Scientific EffectAcoustic transduction:

Implementation Method 2

determine a voice beamforming direction according to the selection, and recording voice signals based on the determined voice beamforming direction

Methodology Applied

Scientific EffectSound beamforming:

Data Source

PatentUS11049519B2Method for voice recording and electronic device thereof

Publication Date: 2021.06.29

AI summary

A method for voice recording and an electronic device thereof are provided. The method includes determining a voice recording mode from among a plurality of voice recording modes, determining a voice beamforming direction according to the determined voice recording mode, and recording voice signals based on the determined voice beamforming direction.