File:IEEE Milestone Plaque - Alan Dower Blumlein.jpg
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Summary
| Description |
English: IEEE Milestone plaque awarded posthumously to Alan Dower Blumlein in 2015 for the invention of Stereo. This plaque is mounted by the front door of Abbey Road Studios
IEEE MILESTONE IN ELECTRICAL ENGINEERING AND COMPUTING Invention of Stereo Sound Reproduction, 1931 Alan Dower Blumlein filed a patent for a two-channel audio system called “stereo” on 14 December 1931. It included a “shuffling” circuit to preserve directional sound, an orthogonal “Blumlein Pair” of velocity microphones, the recording of two orthogonal channels in a single groove, stereo disc-cutting head, and hybrid transformer to mix directional signals. Blumlein brought his equipment to Abbey Road Studios in 1934 and recorded the London Philharmonic Orchestra. April 2015 IEEE |
| Date | |
| Source | Own work |
| Author | AlanBlumlein |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:43, 4 May 2019 | | 2,071 × 1,376 (638 KB) | AlanBlumlein | Cross-wiki upload from en.wikipedia.org |
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