Two active sound outputs can create an echo, while a source track may contain commentary or multiple voices mixed together. First mute one local output at a time and inspect the selected audio track. Do not assume an audio-delay slider can separate voices already mixed into one track.
Check television and external speakers
A television and soundbar playing together with slightly different delays can produce a hollow or doubled sound. Confirm which output is intended and disable the unnecessary one using the devices’ documented settings. Wireless speakers or another nearby screen can also make it seem as though the stream itself contains duplicate audio.
Inspect the programme track
Open the audio selector and look for language, commentary or descriptive options. Track labels are not always complete, so listen to each available choice briefly. If only one track contains two simultaneous languages, the mix may be part of the source and not something a local balance control can reliably undo.
Report the distinction
Tell support whether the doubling disappears when one speaker is muted and whether it affects every programme. If it is confined to one track, provide the title, channel and time. Avoid describing a source mix as a network echo without evidence; the useful next step depends on whether duplication happens before or after local playback.
