Home › Entities › audio_codec › Speex

Speex

audio compression codec designed for human speech
Thing audio_codec Q930667
Press Enter · cited answer in seconds

Speex

Summary

Speex is an audio codec[1]. Speex draws 205 Wikipedia views per month (audio_codec category, ranking #8 of 19).[2]

Key Facts

  • Speex's instance of is recorded as audio codec[3].
  • Speex's instance of is recorded as GNU package[4].
  • Speex's instance of is recorded as free software[5].
  • Speex's instance of is recorded as lossy audio coding format[6].
  • Speex was followed by Opus[7].
  • Speex's developer is recorded as Jean-Marc Valin[8].
  • Speex's developer is recorded as Xiph.Org Foundation[9].
  • Speex's copyright license is recorded as 3-clause BSD License[10].
  • Speex's programmed in is recorded as Q15777[11].
  • Speex's operating system is recorded as cross-platform[12].
  • Speex's software version identifier is recorded as 1.2.1[13].
  • Speex is part of GNU Project[14].
  • Speex is used for speech coding[15].
  • Speex is used for software library[16].
  • Speex is used for command-line tool[17].
  • March 2003 marks the founding of Speex[18].
  • Speex's official website is recorded as https://www.speex.org/[19].
  • Speex's official website is recorded as https://www.gnu.org/software/speex/[20].
  • Speex's official website is recorded as https://gitlab.xiph.org/xiph/speex[21].
  • Speex's readable file format is recorded as .spx[22].
  • Speex's writable file format is recorded as .spx[23].
  • Speex's media type is recorded as audio/x-speex[24].
  • Speex's media type is recorded as audio/speex[25].
  • Speex's source code repository URL is recorded as https://gitlab.xiph.org/xiph/speex.git[26].
  • Speex's source code repository URL is recorded as https://github.com/xiph/speex.git[27].

Body

Definition and Type

Recorded instance of include audio codec[3], GNU package[4], free software[5], and lossy audio coding format[6].

Origins

March 2003 marks the founding of Speex[18].

Use and Application

Recorded has use include speech coding[15], software library[16], and command-line tool[17]. Speex is part of GNU Project[14].

Why It Matters

Speex draws 205 Wikipedia views per month (audio_codec category, ranking #8 of 19).[2] Speex has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[28] Speex is known by 7 alternative names across languages and contexts.[29]

Related Entities

cross-platform free software GNU Project Jean-Marc Valin Strawberry

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . speex.org. Retrieved . speex.org. Provenance: wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . Free Software Directory. Retrieved . wikidata.org.
  9. [11] ↑ . Free Software Directory. Retrieved . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . lists.xiph.org. Retrieved . lists.xiph.org. Provenance: wikidata.org.
  12. [14] ↑ . savannah.gnu.org. Retrieved . savannah.gnu.org. Provenance: wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . Free Software Directory. Retrieved . wikidata.org.
  15. [17] ↑ . Free Software Directory. Retrieved . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . Free Software Directory. Retrieved . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . speex.org. Retrieved . speex.org. Provenance: wikidata.org.
  23. [25] ↑ . speex.org. Retrieved . speex.org. Provenance: wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Speex. Retrieved October 1, 2026, from https://4ort.xyz/entity/speex
MLA “Speex.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Oct. 2026, https://4ort.xyz/entity/speex.
BibTeX @misc{4ortxyz_speex_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Speex}}, year = {2026}, url = {https://4ort.xyz/entity/speex}, note = {Accessed: 2026-10-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Speex — https://4ort.xyz/entity/speex (retrieved 2026-10-01)

Canonical URL: https://4ort.xyz/entity/speex · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6w ago · VGMaintenanceBot bot · 2026-08-20 view diff on Wikidata ↗
    Copyright status → copyrighted
    License → —
    Followed by → Opus
    Writable file format → .spx
    + 24 other properties edited (see Wikidata diff for full list)
    "/* wbsetqualifier-add:1| */ [[Property:P9675]]: 2463, Add qualifier to File Format Wiki page ID `Speex`"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.