superimposition
Sign in to saveAlso known as superposition, overlay, superimposed images, superimposed texts
thumb|Superimposition of hand stencils at Cueva de las Manos Superimposition is the placement of one thing over another, typically so that both are still evident. Superimpositions are often related to the mathematical procedure of superposition.
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- Karlheinz Stockhausen par Claude Truong-Ngoc 1980.jpg
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thumb|Superimposition of hand stencils at Cueva de las Manos Superimposition is the placement of one thing over another, typically so that both are still evident. Superimpositions are often related to the mathematical procedure of superposition.
==Audio== Superimposition (SI) during sound recording and reproduction (commonly called overdubbing) is the process of adding new sounds over existing ones without completely erasing or masking the existing sound. Some reel-to-reel tape recorders of the mid-20th century provided crude superimposition facilities that were implemented by killing the high-frequency AC feed to the erase head while recording as normal via the read-write head.