--- title: Can I use a multilingual audio source for my live stream or in-person event? description: Learn how to use multilingual source audio for live transcription and translation for live streams and in-person events, including setup requirements. --- [Skip to content](https://help.syncwords.com/live/can-i-use-a-multilingual-audio-source-for-live-transcription-and-translation#main-content) [Contact Support](https://help.syncwords.com/live/kb-tickets/new?hsLang=en) [Go to Customer Portal](https://tickets.syncwords.com/tickets-view?hsLang=en) [![5e7383edff0f8e6e3c4967b0\_sw-logo-black-1.png\]](https://help.syncwords.com/hs-fs/hubfs/5e7383edff0f8e6e3c4967b0_sw-logo-black-1.png?height=40&name=5e7383edff0f8e6e3c4967b0_sw-logo-black-1.png)](https://help.syncwords.com/live?hsLang=en) - [SyncWords Live Help](https://help.syncwords.com/live) Open main navigation Close main navigation - [SyncWords Live Help](https://help.syncwords.com/live) - [Contact Support](https://help.syncwords.com/live/kb-tickets/new) - [Go to Customer Portal](https://tickets.syncwords.com/tickets-view) - [Switch to VOD Knowledge Base](https://help.syncwords.com/vod) [Switch to VOD Knowledge Base](https://help.syncwords.com/vod?hsLang=en) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [SyncWords Live Help](https://help.syncwords.com/live?hsLang=en) 2. [Live Streaming Options](https://help.syncwords.com/live/live-streaming-options?hsLang=en) # Can I use a multilingual audio source for my live stream or in-person event? ## Yes, multilingual source audio allows a single live audio stream to automatically detect and switch between spoken languages in real time, while continuing transcription and translating into multiple target languages. #### Overview Multilingual source language support allows a **single audio source** to dynamically switch between languages during a session while maintaining continuous transcription and translation output. This feature is designed to work with both **live Events and Services** where speakers may change languages on the fly. With this feature enabled: - The source language is **not fixed** - Language detection happens automatically during the stream - Transcription continues seamlessly across language changes - Output can be translated into **any number of target languages**, as **subtitles** and/or **audio translations** This is ideal for: - Multilingual panels or Q&A sessions - Events with international speakers - Services where interpreters or speakers switch languages mid‑stream **IMPORTANT:**  You must select **Soniox** as the ASR engine for multilingual source language support to work. - Multilingual source language **will not function** with any other ASR engine - If another engine is selected, language switching will not be detected #### Configuration Settings When configuring your Service or Event, set the following options: ### Engine - **Engine:** Soniox ### Source Language - **Source Language:** Multilingual This enables automatic language detection and dynamic switching during the live audio stream. **Events:** ![](https://help.syncwords.com/hs-fs/hubfs/image-png-Feb-02-2026-06-37-40-2560-PM.png?width=670&height=108&name=image-png-Feb-02-2026-06-37-40-2560-PM.png) **Services:** ![](https://help.syncwords.com/hs-fs/hubfs/image-png-Feb-03-2026-04-35-20-8269-PM.png?width=670&height=145&name=image-png-Feb-03-2026-04-35-20-8269-PM.png) ### Multilingual Source Label (Optional) On **Events** you may optionally set a **custom label** for the multilingual source audio. Examples: - Floor Language - Live Audio - Main Room This label is useful when displaying or routing multilingual source audio alongside other sources. ![](https://help.syncwords.com/hs-fs/hubfs/image-png-Feb-02-2026-06-39-47-7968-PM.png?width=670&height=86&name=image-png-Feb-02-2026-06-39-47-7968-PM.png) ### Expected Languages You may either: - Leave this set to **Auto** for full automatic language detection, or - Specify the **dominant languages** you expect in the stream Specifying expected languages can improve detection stability in controlled environments. **TIP:** We strongly recommend using the expected languages feature to give the speech engine hints about the languages expected in the source for best results. #### Translation Outputs Once multilingual source audio is enabled: - Transcription is generated in the **detected source language** - Translations can be produced into: - Any supported target language - Subtitles - Audio output (where enabled) Multiple target languages can be active at the same time. **NOTE:** We recommend using the default translation engine set for each language. **WARNING:** Multilingual source language support has specific behaviors and limitations that are important to understand before using it in production. Please review the details here: [What should I know before using multilingual source ASR in live Services and Events?](https://help.syncwords.com/live/what-should-i-know-before-using-multilingual-source-asr-in-live-services-and-events?hsLang=en)   - [Creating & Managing an Event](https://help.syncwords.com/live/creating-managing-an-event?hsLang=en#main-content) - [Event Settings](https://help.syncwords.com/live/creating-managing-an-event?hsLang=en#event-settings) - [Create and Manage](https://help.syncwords.com/live/creating-managing-an-event?hsLang=en#create-and-manage) - [Post Event](https://help.syncwords.com/live/creating-managing-an-event?hsLang=en#post-event) - [Glossary & Dictionary](https://help.syncwords.com/live/creating-managing-an-event?hsLang=en#glossary-dictionary) - [New Services UI](https://help.syncwords.com/live/new-services-ui?hsLang=en) - [Live Streaming Options](https://help.syncwords.com/live/live-streaming-options?hsLang=en#main-content) - [HLS](https://help.syncwords.com/live/live-streaming-options?hsLang=en#hls) - [RTMP](https://help.syncwords.com/live/live-streaming-options?hsLang=en#rtmp) - [SRT](https://help.syncwords.com/live/live-streaming-options?hsLang=en#srt) - [CMAF](https://help.syncwords.com/live/live-streaming-options?hsLang=en#cmaf) - [Integrations](https://help.syncwords.com/live/integrations?hsLang=en) - [Caption Delivery Methods](https://help.syncwords.com/live/caption-delivery-methods?hsLang=en) - [Accounts](https://help.syncwords.com/live/accounts?hsLang=en) - [Helpful Videos](https://help.syncwords.com/live/helpful-videos?hsLang=en#main-content) - [Events](https://help.syncwords.com/live/helpful-videos?hsLang=en#events) - [Accounts](https://help.syncwords.com/live/helpful-videos?hsLang=en#accounts) [![](https://help.syncwords.com/hs-fs/hubfs/5e7383edff0f8e6e3c4967b0_sw-logo-black-1.png?width=169&height=36&name=5e7383edff0f8e6e3c4967b0_sw-logo-black-1.png)](https://help.syncwords.com/live?hsLang=en) syncwords.com Help Center Copyright © 2025, SyncWords