# \#closed-captioning

**URL:** https://community.wowza.com/tag/closed-captioning/18.md

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## [Closed Captioning with multiple bitrates (smil) not working](https://community.wowza.com/t/closed-captioning-with-multiple-bitrates-smil-not-working/102795)

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**Author:** [@Bernhard\_Schmidt](https://community.wowza.com/u/Bernhard_Schmidt)\
**Replies:** 8\
**Last updated:** [December 17, 2025, 1:23pm UTC](https://community.wowza.com/t/closed-captioning-with-multiple-bitrates-smil-not-working/102795 "2025-12-17T13:23:44Z")

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Hi, I’d like to use the speechToText module as described here: Convert speech to text to generate live stream captions with Azure AI Speech Services | Wowza Docs & APIs So far it works fine for single streams, but I’d …

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## [Multilanguage webVTT vod streams](https://community.wowza.com/t/multilanguage-webvtt-vod-streams/102664)

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**Author:** [@Kay\_Werner1](https://community.wowza.com/u/Kay_Werner1)\
**Replies:** 3\
**Last updated:** [July 8, 2025, 12:25pm UTC](https://community.wowza.com/t/multilanguage-webvtt-vod-streams/102664 "2025-07-08T12:25:37Z")

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As described here Wowza-Docs: “how-to-configure-closed-captioning-language-selection-for-video-on-demand-streaming#using-multi-language-caption-files” WSE might support multilanguage webVTT files. But I did not find the …

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## [Japanese chars not displaying in side loaded webVTT](https://community.wowza.com/t/japanese-chars-not-displaying-in-side-loaded-webvtt/102334)

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**Author:** [@Daniel\_Rossi1](https://community.wowza.com/u/Daniel_Rossi1)\
**Replies:** 3\
**Last updated:** [December 16, 2024, 9:56pm UTC](https://community.wowza.com/t/japanese-chars-not-displaying-in-side-loaded-webvtt/102334 "2024-12-16T21:56:32Z")

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I have enabled WebVTT in a live application for multi language captions from onTextData. However injecting japanese chars correctly doesn’t display in the generated webVTT correctly. The label for 3 letter iso code jpn s…

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## [Closed Captions Issue?](https://community.wowza.com/t/closed-captions-issue/97449)

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**Author:** [@Rich\_Sokol](https://community.wowza.com/u/Rich_Sokol)\
**Replies:** 3\
**Last updated:** [August 5, 2024, 1:41pm UTC](https://community.wowza.com/t/closed-captions-issue/97449 "2024-08-05T13:41:44Z")

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We are having an issue with closed captions, its a little bit odd to explain. We can’t seem to enable them until they have started in the video play-back. And then sometimes, they flicker on and off, nothing do with th…

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## [onTextData to CEA-708 captions for Japanese char support](https://community.wowza.com/t/ontextdata-to-cea-708-captions-for-japanese-char-support/96564)

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**Author:** [@Daniel\_Rossi1](https://community.wowza.com/u/Daniel_Rossi1)\
**Replies:** 3\
**Last updated:** [November 27, 2023, 9:25pm UTC](https://community.wowza.com/t/ontextdata-to-cea-708-captions-for-japanese-char-support/96564 "2023-11-27T21:25:10Z")

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There is a problem getting Japanese characters displaying in CEA-608 captions. Is there a way to convert CEA-608 to CEA-708 from onTextData to support japanese characters., Injecting these don’t display correctly. 初めての …

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## [CEA608 rollup with onTextData injection](https://community.wowza.com/t/cea608-rollup-with-ontextdata-injection/96511)

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**Author:** [@Daniel\_Rossi1](https://community.wowza.com/u/Daniel_Rossi1)\
**Replies:** 1\
**Last updated:** [October 9, 2023, 1:15am UTC](https://community.wowza.com/t/cea608-rollup-with-ontextdata-injection/96511 "2023-10-09T01:15:19Z")

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I asked the question before. I was wondering what the setting on the server is to enable rollup captions when injecting live captions with onTextData. The captions need to rollup and not disappear when displaying as nati…

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## [Need Wowza/Java consultant for a Realtime Captioning Module](https://community.wowza.com/t/need-wowza-java-consultant-for-a-realtime-captioning-module/96471)

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**Author:** [@Seattle\_Colleges1](https://community.wowza.com/u/Seattle_Colleges1)\
**Replies:** 2\
**Last updated:** [September 21, 2023, 4:21pm UTC](https://community.wowza.com/t/need-wowza-java-consultant-for-a-realtime-captioning-module/96471 "2023-09-21T16:21:16Z")

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We’re looking for a developer that can create a module using a websocket that sends video and receives text captions in realtime. It “seems” to be a combination these concepts: Ingesting AMF onTextData captions Inject …

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## [Seeking Wowza/Java consultant for a Realtime Captioning Module](https://community.wowza.com/t/seeking-wowza-java-consultant-for-a-realtime-captioning-module/96467)

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**Author:** [@Seattle\_Colleges1](https://community.wowza.com/u/Seattle_Colleges1)\
**Replies:** 0\
**Last updated:** [September 7, 2023, 11:21pm UTC](https://community.wowza.com/t/seeking-wowza-java-consultant-for-a-realtime-captioning-module/96467 "2023-09-07T23:21:18Z")

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We’re looking for a developer that can create a module using a websocket that sends video and receives text captions in realtime. It “seems” to be a combination these concepts: Ingesting AMF onTextData captions Inject…

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## [SubRip subtitles language support](https://community.wowza.com/t/subrip-subtitles-language-support/96438)

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**Author:** [@a61859a432623da898c6](https://community.wowza.com/u/a61859a432623da898c6)\
**Replies:** 1\
**Last updated:** [August 28, 2023, 1:11pm UTC](https://community.wowza.com/t/subrip-subtitles-language-support/96438 "2023-08-28T13:11:31Z")

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Hello, I am trying to use .srt closed captioning, I have enabled it from the manager panel. On english subtitles they work fine on all players, but when using arabic language subtitle it shows only dots on all players,…

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## [SubRip Closed Caption Files Not Working For VOD?](https://community.wowza.com/t/subrip-closed-caption-files-not-working-for-vod/95453)

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**Author:** [@Rich\_Sokol](https://community.wowza.com/u/Rich_Sokol)\
**Replies:** 4\
**Last updated:** [October 10, 2022, 3:52pm UTC](https://community.wowza.com/t/subrip-closed-caption-files-not-working-for-vod/95453 "2022-10-10T15:52:19Z")

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We have closed captioning working fine in our WSE implementations for VTT files, but for some reason cannot get them to work the same work with SRT files? The closed caption type is enabled and present in the VHost XML …

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## [onTextData captions in SMIL file with DVR](https://community.wowza.com/t/ontextdata-captions-in-smil-file-with-dvr/94966)

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**Author:** [@Brent\_Walters](https://community.wowza.com/u/Brent_Walters)\
**Replies:** 1\
**Last updated:** [May 20, 2022, 4:31pm UTC](https://community.wowza.com/t/ontextdata-captions-in-smil-file-with-dvr/94966 "2022-05-20T16:31:00Z")

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Greetings all – I am running into a problem with closed captions in combination with the nDVR and Transcoder options for a live stream to our Roku channel. I am currently using a SMIL file to send the adaptive bitrate …

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## [Closed Captioning formatting](https://community.wowza.com/t/closed-captioning-formatting/94031)

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**Author:** [@Rich\_Sokol](https://community.wowza.com/u/Rich_Sokol)\
**Replies:** 4\
**Last updated:** [October 28, 2021, 3:09pm UTC](https://community.wowza.com/t/closed-captioning-formatting/94031 "2021-10-28T15:09:41Z")

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For the life of me, I can not get our closed captions to appear centered and on one line. For some reason, regardless of what I do, they show up right justified and break over 2-3 lines. I’ve seemingly tried everything…

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## [Adaptive Bitrate SMIL file syntax](https://community.wowza.com/t/adaptive-bitrate-smil-file-syntax/92763)

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**Author:** [@Dan\_LaSusa](https://community.wowza.com/u/Dan_LaSusa)\
**Replies:** 1\
**Last updated:** [January 28, 2021, 7:38pm UTC](https://community.wowza.com/t/adaptive-bitrate-smil-file-syntax/92763 "2021-01-28T19:38:59Z")

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Hi! We’re using an SMIL file to deliver ABR streaming to both an MPEG-DASH and HLS stream to jwplayer. sources: \[ {file: "https://wowza\_server/\_definst\_/smil:sample.smil/manifest.mpd"}, {file: "https://wowza\_server/\_de…

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## [CC Closed Captions ingest as VTT/SRT](https://community.wowza.com/t/cc-closed-captions-ingest-as-vtt-srt/92024)

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**Author:** [@Michael\_Westphal](https://community.wowza.com/u/Michael_Westphal)\
**Replies:** 8\
**Last updated:** [October 15, 2020, 5:34pm UTC](https://community.wowza.com/t/cc-closed-captions-ingest-as-vtt-srt/92024 "2020-10-15T17:34:07Z")

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Hi Everyone, we use Wowza Engine to stream a live-stream. So far everything works nice. A third party software helps us generating closed captions (subtitles) live (speech to text). This tool by Video.Taxi works great a…

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## [Embedded CEA-608/708 caption streaming to YouTube](https://community.wowza.com/t/embedded-cea-608-708-caption-streaming-to-youtube/92107)

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**Author:** [@Ben\_Chung](https://community.wowza.com/u/Ben_Chung)\
**Replies:** 6\
**Last updated:** [October 14, 2020, 12:33pm UTC](https://community.wowza.com/t/embedded-cea-608-708-caption-streaming-to-youtube/92107 "2020-10-14T12:33:30Z")

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I’m working on implementing scheduled VOD streaming with embedded captions, sourced from SRT files located alongside the videos. Based on the existing stream scheduler example, I have a working proof-of-concept that reli…

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## [Styling in closed caption vod smil?](https://community.wowza.com/t/styling-in-closed-caption-vod-smil/52741)

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**Author:** [@Ankit\_Gaur](https://community.wowza.com/u/Ankit_Gaur)\
**Replies:** 6\
**Last updated:** [January 25, 2019, 6:59pm UTC](https://community.wowza.com/t/styling-in-closed-caption-vod-smil/52741 "2019-01-25T18:59:12Z")

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We are providing the subtitles in HLS stream via TTML files and are using SMIL’s to create M3U8’s. Subtitles work fine but how to enable styling in those captions? We found some articles on how to put styling in TTML fi…
