Official documentation checked October 14, 2026.
Copilot supports more than one kind of voice interaction. Dictating a prompt, having a spoken conversation, and listening to a response are separate features. Availability and privacy depend on the feature, account, and client; a fixed list of nine languages is not a reliable description of all Copilot voice input.
Choose the voice feature you need
- Dictation: speak text into the prompt box, then inspect it before submitting.
- Copilot Voice: conduct a spoken conversation with audio responses.
- Read aloud: listen to an existing response.
Office’s document Dictate command and Windows voice typing or Voice Access are separate entry points. Do not use the presence of one microphone button as proof that all these features have the same languages, settings, or data handling.
For work or school Copilot, Microsoft’s voice setup guide covers the web experience at copilot.cloud.microsoft and supported desktop and mobile apps. Voice is not categorically restricted to Windows Office side panes.
Check the current language list for your account
Microsoft maintains supported language lists with separate account and voice sections. English, Spanish, and Portuguese appear in the published lists, but a text-language listing does not by itself prove every voice feature is available in your particular work tenant.
Check the section corresponding to your account and feature, and then the availability notice in the app. A translated interface is not proof that the spoken language is supported. New features can also arrive at different times across markets and accounts.
If you encounter an unsupported-language message, note whether it appeared while recording, after transcription, or when generating the reply. Test a short, ordinary sentence in a listed language. Do not change your Windows display language or install arbitrary language packs merely to make it match the keyboard: that is not a universal Copilot requirement.
Start and test a voice request safely
For dictation, select Start dictation in the prompt box, speak, select Stop dictation, and inspect the text. For conversation, select the Voice icon, allow microphone access if prompted, and wait for the greeting. Use the microphone control to mute and the X control to end the session. Session limits can apply. The response menu’s More options > Read aloud is a different operation.
- Confirm the selected account before discussing work information.
- Check the browser site’s microphone permission as well as the device’s microphone privacy setting. For a desktop or mobile app, check that app’s permission.
- Verify the intended input device using the device’s normal microphone test. A headset may be connected for output while a different microphone supplies input.
- Try a harmless sentence in a quiet place. Review names, amounts, dates, and negations carefully; a plausible transcript can still be wrong.
- If the button is absent, record the app, account type, region, and version, then ask the administrator about availability. A working microphone does not establish entitlement.
Understand privacy and practical limitations
Microsoft’s current voice guide distinguishes work-account dictation, which does not store audio as part of that service, from Copilot Voice, whose audio is temporarily retained for feedback scenarios and deleted after 48 hours. That does not mean a submitted text prompt has no conversation history. Personal-account conversation history has its own treatment.
Background speech can be captured. Avoid shared spaces for confidential conversations, end the session when finished, and follow the organization’s approved-use rules. Do not assume that turning down speaker volume mutes microphone input.
For a recurring failure, compare typed and dictated versions of the same harmless question. If typing works but transcription is wrong, investigate recognition and input audio; if both fail, investigate the account or service rather than only the microphone. Save a sanitized description of the failure, not an unnecessary recording of sensitive conversations.