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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 11: Parametric stereo conformance

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 2: MPEG-4 conformance extensions for XMT and media nodes

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 2: MPEG-4 conformance extensions for XMT and media nodes

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 4: IPMPX conformance extensions

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 5: Conformance extensions for error-resilient simple scalable profile

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 6: Advanced Video Coding conformance

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 7: AFX conformance extensions

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 8: High Efficiency Advanced Audio Coding, audio BIFS, and structured audio conformance

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Information technology - Coding of audio-visual objects - Part 4: Conformance testing AMENDMENT 9: AVC fidelity range extensions conformance

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Information Technology - Coding of Audio-Visual Objects - Part 4: Conformance Testing AMENDMENT 13: Parametric Coding for High Quality Audio Conformance

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Scope 1.1 This Standard applies to apparatus, including apparatus intended for professional use, that is used to transmit, receive, and process electronic signals and signals of vocal, musical, or visual origin, and which is not necessarily under the

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4.1 The design and configuration of an audio laboratory, as well as the maintenance of equipment, are factors that must be considered to ensure an optimal environment to produce the best results. This guide is intended to provide general guidance for laboratory setup and maintenance.4.2 This document is not meant to be an all-inclusive guide on how to set up a laboratory; nor does it contain information pertaining to specific commercial products as it relates to computer hardware, forensic, and non-forensic software applications.4.3 When dealing with equipment and technology outside your area of expertise, consult with an appropriate specialist.1.1 This guide sets forth recommendations for the creation of a forensic audio laboratory space as well as the configuration, verification, and maintenance of the equipment contained within the lab.1.2 In designing and configuring an audio laboratory, it is important to consider the acoustical environment/room of the laboratory, as well as climate control. Other than having a viable location for the laboratory, computer hardware and software applications are the most important components of a laboratory.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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