Tuesday, November 6, 2018

The Doppler (frequency shift) effect in music


A great example:


Us and Them - Pink Floyd
https://m.youtube.com/watch?v=s_Yayz5o-l0


The speaker connected to the organ is possibly a Leslie. With its rotating reflector and counter rotating tweeter horn it creates frequency modulation caressing listener's basilar membrane.


A very nice effect can be created by rotating a small speaker inside its small open back cabinet hanging by the cable itself. At your risk. Take all safety precautions. See also the Pleiades (rotating) speaker.


See also:


https://en.m.wikipedia.org/wiki/Doppler_effect


Conceptual Physics - Hewitt






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