Vibration Decomposition

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Novel vibration decomposition techniques are used to separate the cone vibration into single components with special relevance.

A first decomposition separates radial and circumferential vibrations:

A second decomposition is related to the sound pressure output at a certain point:

• Separate radial and circular modes

• Analyze actively radiating cone regions quickly

• Detect loudspeaker defects easily

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In-Phase
Component
(generates sound)

Anti-Phase
Component
(reduces sound)

Quadrature
?Component
(generates no sound)