User Audio Profile Adjustment for Consistent Playback Levels

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Solution Overview

Problem

Users experience distracting or potentially harmful changes in audio output levels when playing content encoded with different standards or volumes, leading to discomfort or hearing damage due to unexpected volume fluctuations.

Innovation Solution

A user profile-based audio adjustment technique that renders audio or audio/video samples, receives user adjustments, and stores these adjustments as a user audio profile to adjust audio output parameters during content playback, ensuring consistent audio levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If content is encoded according to different standards or at different audio levels, then content compatibility and variety are improved, but audio output level consistency deteriorates

Engineering Contradiction:
Improvecontent compatibilityVSAvoidaudio output level consistency
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The system performs preliminary analysis of the audio content to detect its encoding standard and audio level characteristics before playback. This allows the system to pre-calculate the necessary adjustment parameters based on the user profile, so that when the content is played, the volume is automatically normalized without requiring real-time manual adjustment or causing unexpected volume changes to the user.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If manual volume adjustment is allowed to accommodate different content levels, then user adaptability is improved, but user discomfort and hearing damage risk increase due to unexpected volume changes

Engineering Contradiction:
Improveuser adaptabilityVSAvoiduser discomfort and hearing damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system incorporates a feedback mechanism where user volume adjustments are monitored and used to update the user profile. When a user manually adjusts the volume for a particular type of content, the system learns from this behavior and automatically applies similar adjustments for future content of the same type, reducing the need for repeated manual adjustments and preventing unexpected volume changes that could cause discomfort or hearing damage.

Inventive Principle:
Principle #23Feedback

3Stability of the object's composition

If audio output parameters are adjusted for each content item, then audio level consistency is improved, but system complexity and processing overhead increase

Engineering Contradiction:
Improveaudio output level consistencyVSAvoidsystem processing complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The system uses a universal user profile that can be applied across multiple content items and encoding standards. Instead of creating separate adjustment parameters for each individual content item, the system establishes a single user profile that encapsulates the user's volume preferences and applies it universally to all content, simplifying the processing while maintaining audio level consistency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Measurement precision

If user profile is created through multiple adjustments, then profile accuracy is improved, but time consumption and user burden increase

Engineering Contradiction:
Improveprofile accuracyVSAvoidprofile creation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system allows the user profile to be created with a minimal set of adjustments rather than requiring exhaustive calibration. The profile can be established with just a few sample adjustments and then refined over time as the system learns from additional user interactions. This approach provides sufficiently accurate results much faster than complete calibration while allowing for gradual improvement.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS8989406B2User profile based audio adjustment techniques
Publication Date: 2015.03.24 SONY GROUP CORP
  • US8989406B2 patent drawing
  • US8989406B2 patent drawing
  • US8989406B2 patent drawing

AI summary

Embodiments are directed toward user profile based audio adjustment techniques. The techniques are used to render various audio and/or audio/video content having different audio output parameter values in accordance with a user profile that characterizes a user's desired value and/or range of one or more of the output parameter levels.