Speaker Megaphone Horn Compression for Authentic Audio
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Solution Overview
Problem
Current audio speaker systems fail to fully replicate the authentic feel and characteristics of live audio experiences, despite attempts to recreate live sound using speaker assemblies and megaphone devices.
Innovation Solution
A speaker assembly comprising a horn with a surface defining a horn volume and a speaker driver with a diaphragm disposed in the horn volume, where the diaphragm is oriented to direct sound toward the surface, compressing and pressurizing the sound before redirecting it in an opposite direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional speaker assemblies are used, then sound transmission is achieved, but the authentic live audio experience is not fully replicated
Solution Approach 1:
The patent employs nested horn structures where one horn is positioned within the volume of another horn. The first horn is disposed within the second horn volume, creating a nested configuration that allows sound to be compressed and redirected multiple times through overlapping horn volumes, thereby enhancing the live audio experience without proportionally increasing external device complexity
Solution Approach 2:
The patent introduces a third dimension by positioning speaker drivers at different locations and orientations within the horn structure. The first speaker driver directs sound toward the first horn surface while the second speaker driver directs sound between the horns, creating multi-directional sound paths that add dimensional complexity to the audio experience
2Stress or pressure
If the diaphragm is positioned close to the horn surface, then sound compression is maximized, but the distance range is limited
Solution Approach 1:
The patent segments the sound transmission path into multiple stages by using multiple speaker drivers and nested horn structures. Instead of relying on a single diaphragm-surface distance, the system uses multiple diaphragms at different positions, each contributing to sound compression at different stages of transmission through the nested horn volumes
Solution Approach 2:
The nested horn structure acts as an intermediary between the speaker drivers and the external environment. The horns mediate the sound waves by compressing and redirecting them through multiple reflections and transmissions, allowing effective sound pressure buildup without requiring the diaphragm to be extremely close to any single surface
3Reliability
If multiple speaker drivers are added to cover different frequency ranges, then audio quality is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple speaker drivers and horn structures into an integrated assembly where the first and second horns are nested within each other's volumes. The first speaker driver produces high-frequency sound while the second speaker driver produces low-frequency sound, and both are combined within the same spatial envelope, allowing multi-frequency coverage without proportionally increasing overall device complexity
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 described system achieves high-quality, live-like sound transmission by compressing and pressurizing sound waves within the horn volume, resulting in an authentic auditory experience.
Implementation Method 1
the diaphragm is oriented to direct sound toward the surface, compressing and pressurizing the sound before redirecting it in an opposite direction
Implementation Method 2
compressing and pressurizing the sound waves within the horn volume
Data Source
AI summary
A speaker assembly includes a horn including a surface defining a horn volume and a speaker driver including a diaphragm disposed in the horn volume and spaced apart from the surface by a distance. The speaker driver is oriented to direct sound toward the surface.