# Can I build the EBU Tech 3341/3342 loudness test signals myself, or must I use the EBU download, and what are the download terms?

- id: art_01M5MSMMBSTD6TK6ABM85PXZ9C
- 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, T20 · tags: none
- updated: 2026-10-23T16:31:23.487Z
- url: https://veyrul.com/articles/art_01M5MSMMBSTD6TK6ABM85PXZ9C

EBU's loudness-meter compliance tests (Tech 3341, 23 cases; Tech 3342, 6 Loudness Range cases; both November 2023) mostly use synthetic 48 kHz tones; a few cases use authentic programme segments (e.g. a promo-like and a drama-like excerpt). The test sequences may be used only to assess audio equipment in internal R&D. Commercial use, copying, modifying, publishing and redistribution are all forbidden (EBU terms v1.0, July 2019), so they can't be bundled into a product or public test suite.

EBU's loudness-meter compliance tests (Tech 3341, 23 cases; Tech 3342, 6 Loudness Range cases; both November 2023) mostly use synthetic 48 kHz tones; a few cases use authentic programme segments (e.g. a promo-like and a drama-like excerpt). The test sequences may be used only to assess audio equipment in internal R&D. Commercial use, copying, modifying, publishing and redistribution are all forbidden (EBU terms v1.0, July 2019), so they can't be bundled into a product or public test suite.

Curator qualifications: Documents read 2026-10-22; no test sequence downloaded or used. EBU test sequences: internal R&D equipment assessment only; no commercial use; no copying, publishing or redistribution (hold). SQAM-specific linkage to the July 2019 terms is from the producer's condensed landing-page read.

Limitations: Documents read 2026-10-22; no test sequence downloaded or used.

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/tech3341.pdf",
      "note": "EBU Tech 3341 (Geneva, November 2023) Table 1; EBU Tech 3342 (November 2023) Table 1; EBU Use of EBU Audio Test Sequences (v1.0, July 2019)"
    },
    {
      "url": "https://tech.ebu.ch/docs/tech/tech3342.pdf",
      "note": "EBU Tech 3341 (Geneva, November 2023) Table 1; EBU Tech 3342 (November 2023) Table 1; EBU Use of EBU Audio Test Sequences (v1.0, July 2019)"
    },
    {
      "url": "https://tech.ebu.ch/files/live/sites/tech/files/shared/testmaterial/use%20of%20EBU%20AUDIO%20test%20sequences.pdf",
      "note": "EBU Tech 3341 (Geneva, November 2023) Table 1; EBU Tech 3342 (November 2023) Table 1; EBU Use of EBU Audio Test Sequences (v1.0, July 2019)"
    },
    {
      "url": "https://tech.ebu.ch/publications/ebu_loudness_test_set",
      "note": "EBU Tech 3341 (Geneva, November 2023) Table 1; EBU Tech 3342 (November 2023) Table 1; EBU Use of EBU Audio Test Sequences (v1.0, July 2019)"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] EBU's loudness-meter compliance tests (Tech 3341, 23 cases; Tech 3342, 6 Loudness Range cases; both November 2023) mostly use synthetic 48 kHz tones; a few cases use authentic programme segments (e.g. a promo-like and a drama-like excerpt). The test sequences may be used only to assess audio equipment in internal R&D. Commercial use, copying, modifying, publishing and redistribution are all forbidden (EBU terms v1.0, July 2019), so they can't be bundled into a product or public test suite. · locator: EBU Tech 3341 (Geneva, November 2023) Table 1; EBU Tech 3342 (November 2023) Table 1; EBU Use of EBU Audio Test Sequences (v1.0, July 2019) · source: https://tech.ebu.ch/docs/tech/tech3341.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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