--- title: "Long sentence recognition" slug: "ai-clovaspeech-longsentence-releasenote" updated: 2026-09-17T09:35:47Z published: 2026-09-17T09:35:47Z canonical: "api.ncloud-docs.com/ai-clovaspeech-longsentence-releasenote" --- > ## Documentation Index > Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Long sentence recognition Available in Classic and VPC These are the release notes for the CLOVA Speech long sentence recognition API guide. The release notes are categorized by the following criteria. - New - New service release - Update - Feature additions: addition of new features to the service - Feature changes: feature changes to the service - Bug fixes: bug fixes for the service - Termination: termination of a service feature or service (fade-out) - Others: changes to guide content or configuration unrelated to service updates Check the details of the release notes by referring to the above criteria. ### 9. 26. 2024. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Others | Guide reorganization and content enhancement - Separation of API descriptions based on how recognition files are requested - Request speech recognition with file URLs in Object Storage - Request speech recognition from publicly available file URLs - Request speech recognition after uploading local file - Provision of release notes | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 3. 21. 2024. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of subtitle extraction feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 12. 21. 2023. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of event detection (`sed`) feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 12. 15. 2022. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of noise filtering (`noiseFiltering`) feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 10. 20. 2022. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of recognition feature for Chinese (Simplified) (`zh-cn`), Chinese (Traditional) (`zh-tw`) | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 6. 8. 2022. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of domain boosting (`useDomainBoostings`) feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 2. 17. 2022. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of Japanese (`ja`) recognition feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 11. 25. 2021. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of asynchronous (`async`) recognition feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 7. 22. 2021. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of Korean/English simultaneous (`enko`) recognition feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 5. 27. 2021. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of English (`en`) recognition feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 4. 8. 2021. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of speaker (`diarization`) recognition feature | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 11. 18. 2020. | Type | Changes | Detailed path | | --- | --- | --- | | Update - Feature addition | Addition of features to increase recognition of certain keywords (`keywordBoosting`) and decrease recognition of certain keywords (`forbidden`). | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) | ### 9. 17. 2020. | Type | Changes | Detailed path | | --- | --- | --- | | New | Provision of guide | - [Object Storage file recognition](/docs/en/ai-application-service-clovaspeech-longsentence) - [External file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-externalurl) - [Local file recognition](/docs/en/ai-application-service-clovaspeech-longsentence-local) |