In the early 1970s, Vox and its subsidiaries issued a number of compatible quadraphonic / stereophonic recordings using the Sansui QS quadraphonic matrix system; some of the ambience can still be heard when the CD versions are played with an amplifier with Dolby decoding and four speakers.
32.
His first stereophonic recording with the Boston Symphony, in Boston's Symphony Hall in February 1954, was devoted to a complete version of " The Damnation of Faust " by Hector Berlioz and was made simultaneously in monaural and experimental stereophonic sound, although only the mono recording was released commercially.
33.
Decca's emergence as a major classical label may be attributed to three concurrent events : the emphasis on technical innovation ( first the development of the FFRR technique, then the early use of stereophonic recording ), the introduction of the long-playing record, and the recruitment of John Culshaw to Decca's London office.
34.
German audio engineers working on magnetic tape developed stereo recording by 1941, even though a 2-track push-pull monaural technique existed in 1939 . Of 250 stereophonic recordings made during WW2, only three survive : Beethoven's 5th Piano Concerto with Walter Gieseking and Arthur Rother, a Brahm's Serenade, and the last movement of Bruckner's 8th Symphony with Von Karajan.
35.
His more ambitious 1941 recording, with the Bavarian State Orchestra, utilized the full orchestral forces called for by the score ( see below ) and was later issued on LP and CD . Due to the wide dynamic range of the music, the symphony became very popular for high fidelity and stereophonic recordings, beginning with Karl B�hm's 1957 recording.
36.
Decca started first actual stereophonic recording in 13 28 May 1954, at Antar " by Nikolai Rimsky-Korsakov ( This is the official first actual stereo recording of Decca ); " Stenka Razin " by Alexander Glazunov; " Tamara " by Mily Balakirev; Anatoly Liadov's " Baba-Yaga ", " Eight Russian Folksongs ", " Kikimora "; and " Le Martyre de saint S�bastien " by Claude Debussy.