# What do EBU R 128 s1, s2, s3, s4, Tech 3343, Tech 3344 and (if available) AES TD1004 add beyond R 128 for production and streaming distribution?

- id: art_01M5MSNHGNGACFZ19BE2PTWEM2
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T13, T14 · tags: none
- updated: 2026-10-23T16:31:53.357Z
- url: https://veyrul.com/articles/art_01M5MSNHGNGACFZ19BE2PTWEM2

The EBU R 128 family as read in October 2026: R 128 V5 (November 2023) is the base. Supplement s1 (August 2020) sets short-form content (ads, promos) at -23.0 LUFS with short-term loudness no higher than -18.0 LUFS and true peak no higher than -1 dBTP, and says loudness range isn't useful for short-form. Supplement s2 (November 2023) keeps streams at -23.0 LUFS, or an interim distribution level of -20 to -16 LUFS when the broadcaster does the dynamic treatment, citing AES 71 and AES 77. Tech 3343 V4 (November 2023) folds in the streaming, radio and cinematic supplements, and Tech 3344 v2.1 (July 2016) covers distribution and reproduction.

The EBU R 128 family as read in October 2026: R 128 V5 (November 2023) is the base. Supplement s1 (August 2020) sets short-form content (ads, promos) at -23.0 LUFS with short-term loudness no higher than -18.0 LUFS and true peak no higher than -1 dBTP, and says loudness range isn't useful for short-form. Supplement s2 (November 2023) keeps streams at -23.0 LUFS, or an interim distribution level of -20 to -16 LUFS when the broadcaster does the dynamic treatment, citing AES 71 and AES 77. Tech 3343 V4 (November 2023) folds in the streaming, radio and cinematic supplements, and Tech 3344 v2.1 (July 2016) covers distribution and reproduction.

Curator qualifications: Documents read 2026-10-22; nothing transferred or measured. Tech 3343 V4 verified on producer copy tech3343.pdf (sha256 92d6500c78c4fca5 = pin): 'November 2023 V4; substantial re-write ... incorporation of the latest R 128 supplement 4 ... as well as s2 and s3'. s3/s4 details and AES TD1004 (403) carried from producer reading.

Limitations: Documents read 2026-10-22; nothing transferred or measured.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://tech.ebu.ch/docs/tech/tech3343.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/tech/tech3344.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/r/r128.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/r/r128s1.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/r/r128s2.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/r/r128s3.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    },
    {
      "url": "https://tech.ebu.ch/docs/r/r128s4.pdf",
      "note": "EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016)"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] The EBU R 128 family as read in October 2026: R 128 V5 (November 2023) is the base. Supplement s1 (August 2020) sets short-form content (ads, promos) at -23.0 LUFS with short-term loudness no higher than -18.0 LUFS and true peak no higher than -1 dBTP, and says loudness range isn't useful for short-form. Supplement s2 (November 2023) keeps streams at -23.0 LUFS, or an interim distribution level of -20 to -16 LUFS when the broadcaster does the dynamic treatment, citing AES 71 and AES 77. Tech 3343 V4 (November 2023) folds in the streaming, radio and cinematic supplements, and Tech 3344 v2.1 (July 2016) covers distribution and reproduction. · locator: EBU R 128 s1 (Geneva, August 2020); EBU R 128 s2 (Geneva, November 2023); EBU Tech 3344 (Version 2.1, Geneva, July 2016) · source: https://tech.ebu.ch/docs/tech/tech3343.pdf

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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