IEC 61937-4:2003/COR1:2004

IEC 61937-4:2003/COR1:2004 addresses a corrigendum linked to the digital audio interface for non-linear PCM encoded audio bitstreams applying IEC 60958, with a focus on Part 4 for non-linear PCM bitstreams according to the MPEG audio format. It is relevant where engineering teams, laboratories, and procurement specialists need a precise compliance reference for reviewing digital audio interface documentation, verifying implementation details, and maintaining consistency across technical validation and conformity assessment workflows.

What is IEC 61937-4:2003/COR1:2004?

IEC 61937-4:2003/COR1:2004 is a corrective document connected to IEC 61937-4:2003, rather than a standalone technical specification. As a corrigendum, it is used to clarify or correct the parent document covering digital audio transmission of non-linear PCM bitstreams over an IEC 60958-based interface, specifically for MPEG audio format applications. For engineering documentation and technical review, it supports accurate interpretation of the parent reference and helps reduce the risk of using an outdated or inconsistent requirement set.

Applications of IEC 61937-4:2003/COR1:2004

IEC 61937-4:2003/COR1:2004 is typically consulted during product evaluation, laboratory evaluation, and compliance workflows involving digital audio equipment that carries compressed audio bitstreams. It may be used by designers of consumer or professional audio systems, test engineers validating interface behavior, and teams preparing technical documentation for procurement or conformity assessment. In practice, it helps ensure that references to the parent document remain technically aligned when reviewing MPEG audio transport over an IEC 60958 interface.

Why is IEC 61937-4:2003/COR1:2004 important?

Using the corrigendum alongside the parent reference supports technical accuracy in engineering specification reviews and compliance preparation. For organizations working through verification activities, even a small correction can affect how requirements are interpreted in testing workflows or documented evaluation. IEC 61937-4:2003/COR1:2004 helps reduce implementation ambiguity, supports operational consistency between design and test teams, and improves confidence in procurement and conformity assessment decisions that depend on the correct version of the referenced document.

• Corrective reference linked to IEC 61937-4:2003 for MPEG audio bitstream handling over IEC 60958-based digital audio interfaces
• Useful for technical review, documentation control, and version alignment in compliance workflows
• Supports laboratory evaluation and verification activities where precise document references matter
• Helps reduce risk in engineering validation, procurement checks, and conformity assessment preparation