SIST EN 62760:2016/A1:2019

Audio reproduction method for normalized loudness level (TA 20) (IEC 62760:2016/A1:2019)

This International Standard specifies the audio reproduction method for normalized loudness
level of audio sources for consumer equipment and systems.

Audio-Wiedergabeverfahren für normalisierten Lautstärkepegel (IEC 62760:2016/A1:2019)

Méthode de reproduction audio pour niveau d'isosonie normalisé (IEC 62760:2016/A1:2019)

Metoda zvočnega predvajanja za normalizirano raven glasnosti (IEC 62760:2016/A1:2019)

Ta mednarodni standard določa metodo zvočnega predvajanja za normalizirano raven glasnosti zvočnih virov za potrošniško opremo in sisteme.

General Information

• Status: Published
• Public Enquiry End Date: 30-Mar-2019
• Publication Date: 04-Nov-2019
• ICS: 17.140.01 - Acoustic measurements and noise abatement in general
• ICS: 33.160.30 - Audio systems
• Technical Committee: AVM - Audio, video and multimedia systems and equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Sep-2019
• Due Date: 17-Nov-2019
• Completion Date: 05-Nov-2019
• Ref Project: EN 62760:2016/A1:2019 - Audio reproduction method for normalized loudness level

Relations

• Amends: SIST EN 62760:2016 - Audio reproduction method for normalized loudness level (IEC 62760:2016)
• Effective Date: 28-Aug-2018

Overview

EN 62760:2016/A1:2019 - Audio reproduction method for normalized loudness level - is a CENELEC/IEC amendment that clarifies and extends methods for reproducing audio at a normalized loudness. The amendment (A1:2019) updates normative references (notably to ITU‑R BS.1770‑4) and replaces Annex C with an informative section on loudness metadata. This standard targets consistent loudness reproduction and metadata carriage for broadcast, file exchange and quality control workflows.

Key topics and technical points

• Normalized loudness reproduction: Provides the framework for reproducing audio at a defined loudness level to ensure consistent listening levels across content.
• Updated reference algorithm: Normative reference changed to ITU‑R BS.1770‑4 (algorithms for measuring programme loudness and true‑peak).
• Loudness metadata (Annex C, informative):
  • Defines metadata fields used to describe programme loudness for file formats (BWF/BW64), including:
    • integratedLoudness (in LKFS)
    • loudnessRange (in LU)
    • maxTruePeak (in dBTP)
    • maxMomentary, maxShortTerm, dialogLoudness (in LKFS)
    • loudnessMethod (e.g., “BS1770”)
    • loudnessRecType (regional practice followed, e.g., ATSC A/85, EBU R128)
    • loudnessCorrectionType (offline file‑based or real‑time correction)
  • Clarifies that LKFS (ITU‑R) and LUFS (EBU) are equivalent per ITU‑R BS.2076.
• Metadata carriage: Loudness metadata described can be embedded in Broadcast Wave Format (BWF) and BW64 files as per ITU‑R BS.2088 / EBU Tech recommendations.
• Standards governance: Amendment was accepted by CENELEC and must be implemented at national level by the specified dates.

Applications and who uses it

• Broadcast engineers and audio professionals ensuring consistent loudness across TV/radio channels.
• Post‑production and mastering studios integrating loudness metadata into deliverables.
• Streaming platforms and content aggregators applying loudness normalization and loudness metadata workflows.
• Software and hardware manufacturers (mixing consoles, loudness meters, file‑IO tools) implementing measurement algorithms and metadata support.
• Quality assurance teams using loudness metadata for automated compliance checks against regional practices (EBU R128, ATSC A/85).

Related standards and references

• ITU‑R BS.1770‑4 - loudness and true‑peak measurement algorithms
• ITU‑R BS.2076 - Audio Definition Model / loudness metadata definitions
• ITU‑R BS.2088 - long‑form file format (BW64) for metadata exchange
• EBU R128, ATSC A/85, ARIB TR‑B32, EBU Tech 3285 / 3364

This amendment helps harmonize loudness measurement, metadata, and reproduction practices-improving listener experience, simplifying compliance, and enabling reliable metadata exchange across production and broadcast ecosystems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2019
Metoda zvočnega predvajanja za normalizirano raven glasnosti (IEC
62760:2016/A1:2019)
Audio reproduction method for normalized loudness level (TA 20) (IEC
62760:2016/A1:2019)
Audio-Wiedergabeverfahren für normalisierten Lautstärkepegel (IEC
62760:2016/A1:2019)
Méthode de reproduction audio pour niveau d'isosonie normalisé (IEC
62760:2016/A1:2019)
Ta slovenski standard je istoveten z: EN 62760:2016/A1:2019
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
33.160.30 Avdio sistemi Audio systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62760:2016/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 33.160.30
English Version
Audio reproduction method for normalized loudness level (TA 20)
(IEC 62760:2016/A1:2019)
Méthode de reproduction audio pour niveau d'isosonie Audio-Wiedergabeverfahren für normalisierten
normalisé Lautstärkepegel
(IEC 62760:2016/A1:2019) (IEC 62760:2016/A1:2019)
This amendment A1 modifies the European Standard EN 62760:2016; it was approved by CENELEC on 2019-08-14. CENELEC members
are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the status of a
national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62760:2016/A1:2019 E

European foreword
The text of document 100/3184/CDV, future IEC 62760/A1, prepared by IEC/TC 100 "Audio, video and
multimedia systems and equipment" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN 62760:2016/A1:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-05-14
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-08-14
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62760:2016/A1:2019 was approved by CENELEC as a
European Standard without any modification.

EN 62760:2016/pA1:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
Replace
ITU-R -  Algorithms to measure audio programme loudness - -
Recommendation and true-peak audio level
BS.1770-3:08/2012
with
ITU-R -
...