STEREO

Before World War II there was experimented with multi-channel recording and playback. An example is the recorded music of Disney's Fantasia, which made use in 1938 of seven audio channels, which were required for playback in the cinema dozens of speakers. Philips used stereophonic recording and playback in 1948 for an experimental "duplicate concert" of the Great Hall in the Kleine Zaal of the Concertgebouw in Amsterdam. When all stereophony was deemed necessary in order to achieve a realistic reproduction of the concert. No less interesting were the findings of the listeners, including orchestra members, the majority of whom were very positive about the accuracy of the display and some even thought they are - thanks to the darkness in the Small Hall (since no orchestra to see was) - to concentrate even more on the music. LINK stereostack