Audio Channel Routing With Latency Compensation for Immersive Sound

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Solution Overview

Problem

Existing electronic devices, such as sound bars, face limitations in channel expansion and installation, necessitating a solution to enhance sound channel capabilities and reduce inter-floor noise.

Innovation Solution

An electronic device equipped with a communication interface, memory, and processors that can identify and control the transmission of sound channels to another device based on the activation of a predetermined function, compensate for latency, and manage channel output to enhance immersive sound experiences while minimizing noise interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a speaker such as the sound bar is used to provide multi-channel output, then the user can enjoy immersive sound experience, but the device has limitation in channel expansion and installation

Engineering Contradiction:

Improvechannel expansion capabilityVSAvoidinstallation complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system divides the audio output into multiple independent channels that can be distributed to different electronic devices. The main electronic device segments the audio signal into multiple channels and transmits them to secondary devices (earphones, speakers, sound bars) that can independently process and output specific channels, enabling channel expansion without increasing the complexity of the main device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The electronic device is designed to support multiple functions by being able to output audio channels to different types of secondary devices (earphones, speakers, sound bars). The system can adaptively determine which device to use based on the activated function, making the audio output system universal and flexible without requiring separate dedicated hardware for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple electronic devices are used to expand sound channels, then channel capability is improved, but inter-floor noise and latency issues arise

Engineering Contradiction:

Improvesound channel capabilityVSAvoidinter-floor noise

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system assigns different audio channels to different output devices based on their characteristics and locations. Low-frequency bass channels that cause inter-floor noise are routed to devices positioned away from floors or with better isolation, while high-frequency channels are directed to earphones or ceiling-mounted speakers. This local optimization minimizes noise transmission to floors while maintaining immersive audio quality.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The electronic device acts as an intermediary that manages audio channel distribution and coordinates between multiple secondary devices. It processes the audio signal, applies latency compensation, and routes channels to appropriate devices based on their capabilities and current activation status, reducing harmful noise effects through intelligent signal management.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If audio channels are transmitted to multiple devices, then immersive sound experience is enhanced, but latency and synchronization issues occur

Engineering Contradiction:

Improveimmersive sound experienceVSAvoidaudio latency

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The electronic device performs preliminary latency compensation by calculating the transmission time to each secondary device and pre-adjusting the audio signal timing. Before transmitting audio channels to multiple devices, the system compensates for the expected latency based on device distance and processing capabilities, ensuring that all devices receive and output audio in synchronization for an immersive experience.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the electronic device monitors the actual audio output timing from secondary devices and adjusts the transmitted signal timing accordingly. This closed-loop control ensures that latency variations are continuously compensated, maintaining synchronization across multiple devices and preserving the immersive sound experience.

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP4716251A1Electronic device for providing at least one sound channel to another electronic device, and control method therefor

Publication Date: 2026.03.25 SAMSUNG ELECTRONICS CO LTD

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AI summary

This electronic device may comprise: a communication interface; at least one memory for storing instructions; and one or more processors connected to the communication interface to control the electronic device, wherein by executing the instructions, the one or more processors: when it is identified that a second electronic device is connected to the electronic device through the communication interface, identify whether a predetermined function is activated in the second electronic device; and control the communication interface to transmit at least one channel among a plurality of channels included in sound information to the second electronic device on the basis of whether it is identified that the predetermined function is activated.