Live Audio Distribution via Impulse Response Segmentation

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Solution Overview

Problem

Existing systems do not effectively distribute live data in a way that replicates the immersive experience of a live venue, failing to provide a realistic sensation of the live event to the distribution destination.

Innovation Solution

A live data distribution method and system that obtains information on sound sources and space reverberation at a live venue, and distributes this data to a remote venue, where it is rendered to provide an immersive audio experience that simulates the original live venue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If live data is distributed using conventional systems, then data transmission is achieved, but realistic sensation of the live venue is not provided

Engineering Contradiction:

Improverealistic sensationVSAvoidvenue ambiance information

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The audio signal is segmented into multiple components: direct sound from the sound source, early reflections from various surfaces, and late reverberation. Each component is processed separately to preserve the spatial and temporal characteristics of the original venue, enabling realistic sensation to be reconstructed at the destination.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system captures and transmits acoustic parameters including impulse response characteristics, reverberation time, and spatial distribution data. These parameters are changed and adapted during transmission to maintain the venue's acoustic identity while enabling reconstruction of the realistic sensation at the remote location.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If spatial audio processing is implemented, then immersive experience is improved, but system complexity increases

Engineering Contradiction:

Improveimmersive experienceVSAvoidprocessing system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Instead of transmitting the entire complex acoustic environment, the system creates a simplified copy or model of the venue's acoustic characteristics using impulse response measurements. This copied acoustic signature is then applied to the distributed audio content, achieving immersive experience without requiring the full complexity of the original venue to be replicated at the destination.

Inventive Principle:

Principle #26Copying

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

The system successfully replicates the realistic sensation of a live venue at the distribution destination, enhancing the immersive experience by accurately simulating the sound field and ambiance of the original venue.

Implementation Method 1

measures an impulse response of a sound to be outputted from a speaker in the listening environment

Methodology Applied

Scientific EffectImpulse response: Reverberation

Implementation Method 2

performs filter processing according to a measured impulse response

Methodology Applied

Scientific EffectFilter processing:

Implementation Method 3

convolving a sound with the impulse response

Methodology Applied

Scientific EffectConvolution:

Data Source

PatentUS20250182736A1Live data distribution method, live data distribution system, and live data distribution apparatus

Publication Date: 2025.06.05 YAMAHA CORP

AI summary

A live data distribution method obtains information on a sound source according to sound generated at the first venue, and information on space reverberation, as distribution data, distributes the distribution data to the second venue, and renders the distribution data and providing sound according to the distribution data at the second venue.