Editing Arturo Toscanini (section)

===Charles O'Connell on Toscanini===
[[Charles O'Connell (music producer)|Charles O'Connell]], who produced many of Toscanini's early NBC Symphony recordings, stated that RCA Victor decided to record the orchestra in Carnegie Hall whenever possible, after numerous customer complaints about the flat and dull-sounding early recordings made in Studio 8-H in 1938 and 1939. Nevertheless, some recording sessions continued to be held in Studio 8-H as late as June 1950, probably because of alterations to the studio beginning in 1939, including installation of an acoustical shell in 1941 at the insistence of Leopold Stokowski before he temporarily replaced Toscanini as principal conductor of the NBC Symphony in the fall of 1941. O'Connell and others often complained the Maestro was little interested in the details of recorded sound and, as Harvey Sachs wrote, Toscanini was frequently disappointed that the microphones failed to pick up everything he heard as he led the orchestra. O'Connell even complained of Toscanini's failure to cooperate with him during the sessions. Toscanini himself was often disappointed that the 78-rpm discs failed to fully capture all of the instruments in the orchestra or altered their sound to such an extent they became unrecognizable. Those who attended Toscanini's concerts later said the NBC string section was especially outstanding.<ref>Eyewitness accounts by William Knorp, B.H. Haggin and others.{{citation needed|date=March 2014}}</ref>