Microsoft Teams speech to text can mean two different things: turning a meeting's audio into captions or a transcript, or speaking a chat message instead of typing it. Teams handles the first one itself. For the second there's no Teams button, so you use your computer's or phone's voice typing, or a dictation app like LumeVoice.
Short answer
Can you use voice to text in Teams chat?
Not with a Teams button. As of October 2026, Microsoft's Teams help doesn't describe a dictation button for chats or channel posts. You can still dictate: press Windows key + H on Windows, use Dictation on a Mac, tap your phone keyboard's microphone, or use a dictation app such as LumeVoice. Live captions and transcription are meeting features.
What Teams has built in, and what each feature is for#
Here's what Microsoft documents as of October 2026. All of it is useful; none of it types a chat message for you.
- Live captions show real-time subtitles in a meeting or group call. Microsoft says Teams doesn't save them.
- Transcription creates a written record of a meeting that you can download afterwards.
- Audio and video clips: you can record up to a minute of audio or video in a chat or channel. Your colleague has to play it rather than skim it.
- Copilot Chat dictation: separately, Microsoft documents a Start dictation button in the prompt box of Microsoft Copilot Chat (in the browser or the Copilot desktop app, with a work or school account). That's for prompting Copilot, not for messaging people. If that's what you're after, see dictating to Microsoft Copilot.
Free ways to dictate a Teams message#
Your operating system's dictation types into the Teams compose box like anywhere else:
- Windows: click into the message box and press Windows key + H. Microsoft says voice typing uses online speech recognition, so it needs internet. Turn on automatic punctuation in its settings. On Copilot+ PCs, Fluid dictation corrects grammar, punctuation and filler words as you speak, in English.
- Mac: press the Microphone key, use your Dictation shortcut, or choose Edit > Start Dictation. Apple adds basic punctuation automatically in supported languages.
- Phone: tap the microphone on your keyboard in the Teams app. On iPhone, Apple processes dictation on the phone in many languages, with no internet connection needed.
The catch: outside Fluid dictation (and Gboard's Rambler mode on Pixel 11 phones), none of these is documented to remove filler words or apply your self-corrections, there's no documented custom word list for teammates' names or project codenames, and each device works a little differently.
How to dictate in Teams with LumeVoice#
LumeVoice types wherever your cursor is, so chats, channel posts, thread replies and the Teams web app all work the same way.
- Download LumeVoice for Windows or Mac. On Windows it installs per user, with no admin rights needed.
- Click into the compose box of a chat, a channel post or a reply.
- Hold Ctrl + Win (Windows) or fn (Mac), say your message, and let go. The cleaned-up text is pasted into the box.
- Read it and press Enter. LumeVoice never sends anything for you.
On your phone, switch to the Lume keyboard on iPhone or tap the floating bubble on Android inside the Teams app.
Spoken chat is full of "so, um" and "Tuesday, no, Wednesday." LumeVoice removes the filler words and stutters, keeps only your correction, adds punctuation and capitals, turns a spoken list into a numbered or bulleted one, and fixes grammar and spelling.
Reply in Teams without typing
LumeVoice types clean, punctuated messages into Teams chats and channels on Windows and Mac, in the desktop app or any browser, and into the Teams app on iPhone and Android. Start with 3,000 free words, no card required.
Tips for writing Teams messages by voice#
- Pick a casual style for chat. LumeVoice's desktop writing styles include Casual and Casual Lowercase, which suit quick messages better than formal email.
- Expand the box for long posts. Press Ctrl + Shift + X (Shift + Command + X on a Mac) to open the expanded compose box, dictate, then send with Ctrl + Enter (Command + Return). In the regular box, Shift + Enter starts a new line, and you can choose what Enter does in Teams' settings under Chats and Channels.
- Add @mentions with the keyboard. Type @, pick the person from Teams' list, then hold the key and dictate the rest.
- Teach it your team's words. Add teammates' names, project codenames and acronyms to the custom dictionary.
- Turn routine replies into snippets. A stand-up template, your meeting link or a "back after lunch" note: say a short cue and Lume types the full text.
- Say status updates as a list. "First…, second…, third…" comes out formatted as a list, which is easy for your team to scan.
- Think about who can hear you. In an open office, a headset mic helps, and some messages are still better typed.
Teams' tools vs your OS vs LumeVoice#
Built-in details are from Microsoft and Apple's help pages as of October 2026.
| Teams' built-in features | Windows voice typing or Mac Dictation | LumeVoice | |
|---|---|---|---|
| Types a chat message | No | Yes | Yes |
| Meeting captions and transcripts | Yes | No | No |
| Punctuation | Not applicable | Automatic on Mac (supported languages), a setting on Windows | Added from context; spoken also works |
| Filler words and self-corrections | Not applicable | Fluid dictation on Copilot+ PCs (English) | Removed and applied |
| Custom vocabulary | Not applicable | None documented | Custom dictionary |
| On a phone | Not applicable | Your keyboard's microphone | Lume keyboard (iPhone), floating bubble (Android) |
| Cost | Included with Teams | Free | 3,000 free words, then $14.99/mo, $79.99/yr, or $249 lifetime |
Swipe to see all columns
When the built-in option is enough#
You may not need LumeVoice if:
- Most of your replies are a few words. A reaction or a quick "on it" is faster to type.
- You have a Copilot+ PC and write in English. Windows' Fluid dictation already cleans up grammar, punctuation and filler words.
- You mostly reply from your iPhone. Apple's dictation is free, built in and works without a connection in many languages.
- You need meeting notes. That's Teams transcription's job. LumeVoice isn't a meeting recorder.
- IT has to deploy and manage every tool. LumeVoice has no team plan or admin console.
LumeVoice is worth it when you write longer messages and posts all day, switch between Teams, Slack and email, or want the same clean results on your computer and your phone.
The short version#
Teams has captions and transcripts covered, but writing messages by voice is up to your device or a dictation app. Try your built-in option first, and if you're still fixing every message, give LumeVoice a few days of real chats. If your team also lives in Slack, see dictation in Slack and our guide to writing Slack messages faster by voice.