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Considerations in Cinema Sound Systems
Tuesday, October 30, 2012 from 6:30 PM to 9:00 PM (PDT)
Our Meeting this month follows on the heels of the SMPTE and AES conferences with a discussion of acoustical characteristics and calibration of cinema sound reproduction systems.
Together our speakers, Pete Soper of Meyer Sound and Brian Long of Skywalker Sound will present investigations into the interactions between cinema loudspeakers and screens.
Modern-day data-acquisition techniques allow the gathering of high-resolution polar data to assess the detailed performance of loudspeakers. While these techniques are now common in the laboratory, they can also be used for acoustic investigation into the ‘in-situ performance’ of loudspeakers. This presentation discusses the uses of these modern high-resolution data acquisition techniques and analysis tools to investigate the complexity of the interaction between a loudspeaker and the screen in a cinema presentation environment, while exploring the effects of three types of screen materials on loudspeaker frequency responses and radiation patterns. These effects are explored using a range of loudspeaker-screen distances found in typical cinemas, with the impact of the screen on patron listening experience examined in relation to the standards for system response as set out in ST-202.