No audio describes the absence of expected sound rather than one specific technical fault. Volume, mute, selected track, speaker destination, codec support and connection settings can all matter. Separating a single silent programme from silence across every app helps narrow the investigation while preserving account and network settings that may already be working correctly.
A practical example
A television plays menu sounds but one film is silent. Selecting another available audio track or reviewing supported output settings examines a different situation from a muted television or a soundbar that is not selected as the current audio destination.
A common misunderstanding
Do not assume that visible video proves every audio format is supported. Also avoid changing network settings before checking the actual speaker destination, mute state and selected programme track.
Related terms
Stable technical definition. Editorial approach