Acoustical Background Noise Levels in Dubbing Stages

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Engineering Guideline (EG)
Pages: 1–3
Abstract: (1.1) This guideline provides measurement methods and recommended levels for background noise sound pressure levels in dubbing stages. The purpose of adding intentional background noise to dubbing stages is to match the environment of the dubbing stage to the average theater environment, for best translation of the program material from dubbing stage to theater. (1.2) The guideline is intended for application when the background noise is essentially a steady-state sound, without strong time-varying components. (1.3) The background noise may be produced by air-handling systems, by adding noise to the monitoring system, or by a combination of these. An advantage to adding noise electronically is the ability to switch off the noise, for reproduction of the fullest possible dynamic range of the program material, exceeding that of most theaters, so long as the air-handling system noise of the dubbing stage is quieter than most theaters.
Release Tag: 20051216-pub
Publication Date: 2005-12-16
Approval Date: 2005-12-16
Reaffirm Date: 2016-12-01
Stabilized Date: 2023-02-28
DOI: 10.5594/SMPTE.EG14.2005
ISBN: 978-1-61482-010-9
Link: https://doi.org/10.5594/SMPTE.EG14.2005
Group: SMPTE 27C Cinema
Keyword(s): Film, Test & Measurement, Audio, Sound, DCinema
ICS Codes: 37.060 Cinematography
37.060.99 Other standards related to cinematography
33.160.30 Audio systems
Copyright: © 2005 Society of Motion Picture and Television Engineers, Inc.

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Normative Reference(s)

ANSI/ASA S1.11:2004 (R2009) [Superseded]
ANSI/ASA S1.13:1995 [Superseded]
ANSI/ASA S1.4:1983 (R2006)/ANSI S1.4a:1985 (R2006) [Superseded]

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