Spectral Sound was created in 2000.
Spectral Associates was created in 1980.
Spectral Worship was created in 1998.
Spectral Bat was created in 1758.
I heard a spectral sound when I walked across the room.
Spectral Mornings was created in 1979-01.
Spectral Gene was created on 2007-12-13.
Spectral - album - was created on 2004-05-10.
The Spectral Sorrows was created on -19-08-07.
Onwards to the Spectral Defile was created in 1998-11.
In accoustic measurements, spectral mean refers to the center of gravity for a certain sound wave selection.
Spectral character refers to the unique combination of frequencies and intensities that make up the signature or profile of a sound wave. It is used to describe the unique qualities that differentiate one sound from another, such as pitch, timbre, and tone color.
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