Windows · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Similar words can describe different processing
Speech settings appear in several Windows features, but the word speech does not tell you where audio is processed. A privacy decision should start with the named feature and its documentation. Watching a caption window is different from dictating text into a cloud-backed application or using a separate voice service.
Live Captions has a local path
Microsoft says Windows Live Captions processes its audio and captions on the device, does not store them and does not send them to the cloud. That describes this accessibility feature. It should not be expanded into a statement that the streaming website, browser extensions or another recorder cannot process or retain their own information.
Online recognition is another control
Microsoft separately documents online speech recognition in Windows privacy settings and explains its cloud-based role for participating experiences. Turning that control on or off is a different decision from choosing the optional microphone input inside Live Captions. Read the relevant setting before changing it to solve a caption-source problem.
Diagnose the actual symptom
If captions show nearby speech, inspect the Live Captions microphone preference. If a dictation or voice feature is unavailable, consult that feature’s requirements and speech settings. Changing both at once obscures the reason for the result. Note the original choices and repeat one small action after a single deliberate change.
Use bounded privacy language
A useful support statement names the feature, selected input and documented processing path. Avoid statements such as all speech is offline or nothing leaves the computer, because those imply facts about unrelated apps and services. The practical benefit of separating the controls is a more accurate decision and a clearer description of what was actually checked.
Questions, answered
Is the online speech setting a universal caption privacy switch?
No. Read the named feature’s processing and input controls.
Does local captioning describe a streaming site’s privacy?
No. The website and other applications have their own data handling.