Android · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Choose a test that can answer the question
A silent caption bubble over a musical introduction can look like a failure, but it does not test the same task as a spoken sentence. Google says Android Live Caption works on speech and does not caption music. Select the sample according to the capability you are checking before changing the app or device.
Use a short spoken passage
Find a brief, clearly spoken section in material you are entitled to play. Keep the selected language consistent with that speech. Observe whether any caption text appears, then compare the wording. This separates basic operation from difficult recognition of names, overlapping voices, background noise or an unsupported language.
Check availability and power state
Live Caption is not identical on every Android device, and some apps are unsupported. Google also documents that Battery Saver automatically turns it off. A useful test therefore records device support, language and power mode as well as the sample. A musical clip alone cannot distinguish among those possibilities.
Do not confuse generated and supplied text
A programme may include an edited subtitle track that identifies music or sound effects. Android’s generated speech captions have a different role. If sound descriptions matter, inspect the programme’s supplied accessibility options instead of assuming that an automatic speech feature will reproduce them.
Report the evidence in stages
Say whether captions appeared for clear speech, whether Battery Saver was active and whether the result was limited to one app. Google describes local caption processing after setup, but that does not supply a missing stream or repair an app’s account access. A well-chosen sample narrows the diagnosis without unnecessary resets or claims about unrelated systems.
Questions, answered
Should lyrics or instrumental music always produce text?
No. Google says Live Caption does not caption music.
What is a better first sample?
A short passage of clear speech in a supported language.