Audio Volume Normalization Using Segment Peak Analysis

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Solution Overview

Problem

Users frequently adjust the volume of audio played on intelligent terminals due to differences in audio sources, resulting in inconsistent playback volumes.

Innovation Solution

A method for audio processing that involves segmenting audio into N segments, determining a target sequence of maximum volume values, and using a volume adjustment parameter to adjust the playback volume to a target level, thereby maintaining consistent volume across different audio sources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If audio from different sources is played through the terminal, then the terminal can provide diverse audio content, but the volume varies significantly causing frequent user adjustment

Engineering Contradiction:
Improveaudio source compatibilityVSAvoidvolume adjustment frequency
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system performs preliminary analysis of audio characteristics before playback. The processor analyzes the audio data to determine volume adjustment parameters in advance, so that when the audio is played, the volume is already optimized. This prevents the need for frequent user adjustments during playback.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The audio playback system automatically adjusts volume based on analyzed audio characteristics without requiring user intervention. The processor autonomously determines volume adjustment parameters and applies them during playback, making the system self-regulating and eliminating the need for frequent manual volume adjustments.

Inventive Principle:
Principle #25Self-service

2Reliability

If the terminal plays audio with original volume settings, then the audio fidelity is preserved, but the volume inconsistency requires frequent user intervention

Engineering Contradiction:
Improveaudio fidelityVSAvoiduser adjustment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary analysis of audio characteristics before playback. The processor analyzes the audio data to determine volume adjustment parameters in advance, so that when the audio is played, the volume is already optimized. This prevents the need for frequent user adjustments during playback.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the volume parameter dynamically based on audio characteristics. The processor analyzes audio data to extract features and determines appropriate volume adjustment parameters, applying different volume levels to different audio segments or sources while maintaining overall audio fidelity.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the terminal automatically adjusts volume, then user intervention is reduced, but the processing complexity increases

Engineering Contradiction:
Improveuser intervention requirementVSAvoidaudio processing complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system performs preliminary analysis of audio characteristics before playback. The processor analyzes the audio data to determine volume adjustment parameters in advance, so that when the audio is played, the volume is already optimized. This prevents the need for frequent user adjustments during playback.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces manual mechanical volume adjustment with automated digital signal processing. The processor analyzes audio data and automatically applies volume adjustments through digital processing, substituting the mechanical user interaction with automated computational processes.

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

Data Source

PatentUS11137974B2Method and apparatus for audio processing, electronic device and storage medium
Publication Date: 2021.10.05 BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
  • US11137974B2 patent drawing
  • US11137974B2 patent drawing
  • US11137974B2 patent drawing

AI summary

The present application provides a method for audio processing, an apparatus, an electronic device and a storage medium, the method includes: performing a segmentation processing on an audio to be processed to obtain N audio segments, N is an integer larger than or equal to 2; obtaining a target sequence according to maximum volume values of each of the audio segments, the target sequence includes: maximum volume values of M audio segments sorted in order of maximum volume values from large to small, M is a positive integer smaller than N; obtaining a volume adjustment parameter of the audio to be processed according to the target sequence, the volume adjustment parameter is used to adjust playing volume of the audio to be processed to target volume. The method avoids the problem that the user frequently adjusts the volume of the audio.