| Voices early | The TV is slowing the picture: motion smoothing, noise reduction, upscaling |
|---|---|
| Voices late | Something is slowing the sound: Bluetooth, a soundbar, a receiver mode |
| Gap that grows | The player lost alignment, often after a stall: reopen the channel |
| One channel only | The offset is in that feed: send support the channel and time |
| Golden rule | One correction, in one place, never stacked |
Early or late: the direction names the cause
Find someone speaking in close-up, a newsreader is ideal, and watch for p, b and m, where the lips close. Hear them before the lips meet and the sound is early; after, it is late.
- Voices early: the television holds each frame back to process it: motion smoothing first, then noise reduction and upscaling. Sets compensate for their own speakers but often not for a soundbar on their output, so the gap tends to arrive with a new bar.
- Voices late: the sound is held back. Bluetooth adds the most, commonly between a tenth and a third of a second; a bar decoding surround, or running virtual surround, adds some too.
- A gap that grows: the player losing alignment, often after a buffering pause. Reopening the channel resets it.
Most delay controls on televisions and bars can only hold sound back, not hurry it. Early voices are cured by adding audio delay; late voices by removing what slows the sound, or by a player able to move audio earlier.
| What you notice | Likely cause | Fix |
|---|---|---|
| Early on every channel | Picture processing in the TV | Game mode, or motion smoothing off |
| Early through the bar only | TV output not compensated | Delay on the bar, or the TV digital output delay |
| Late on Bluetooth | Wireless latency | The stick or TV sync tuning, or wired headphones |
| Late on surround channels | Decoding and sound modes in the bar | Virtual surround off; compare with PCM |
| Fine, then drifting | Player alignment after a stall | Reopen the channel; other decoder if it recurs |
| One channel, every device | Offset in the feed | Report it; try its other quality copy |
Tivo8k sync checks, quickest first
- Reopen the channel. Zap away and back. If the gap vanishes, the player had drifted, and it will only return after another stall; frequent stalls are covered by the Tivo8k buffering fixes.
- Compare. A channel from another group and a film from the library. The same gap everywhere means the room; one channel only means the feed.
- Take the bar out of the chain. Switch the television to its own speakers for a minute. If the gap disappears, the delay lives in the soundbar or receiver path.
- Change the picture mode. Game mode, where the set has one, skips most processing. If voices line up there, go back to your usual mode and switch the extras off one at a time, motion smoothing first.
- Silence the sound modes. Virtual surround, room correction and night modes each add a little. Plain stereo or direct mode is the test.
- Only then dial in a delay, in one place, with the controls below.
Where the delay controls live
- Fire TV: recent Fire OS versions add AV Sync Tuning under Display & Sounds, Audio, which plays a flash with a click so you can line them up; it matters most with Bluetooth.
- Apple TV: Video and Audio, Calibrate, Wireless Audio Sync measures AirPlay speakers and HomePods with an iPhone. A bar on HDMI is corrected on the bar or TV instead; Tivo8k on Apple TV covers its audio menu.
- Samsung: Sound, Expert Settings, Digital Output Audio Delay shifts only what leaves for a bar or receiver.
- LG: Additional Settings, AV Sync Adjustment, with separate values for TV and external speakers on most webOS versions, plus a Bypass switch.
- Android TV and Google TV: no common control, so use the TV or bar; Tivo8k on Android TV covers the pass-through side.
- Soundbars and receivers: AV sync, audio delay or lip sync, in the remote menu or the phone app. Move in small steps while someone talks on screen.
Inside the player: VLC, TiviMate and IPTV Smarters Pro
VLC on a computer is the one player here that moves sound earlier as well as later. On Windows, K delays the audio and J brings it forward, 50 milliseconds a press; or open Tools, Track Synchronization (Window, Track Synchronization on a Mac), where a negative value pulls late voices forward. If one value fixes every channel there, the delay belongs to the computer route, not the feed. See VLC and Tivo8k on a computer.
TiviMate and IPTV Smarters Pro have changed their playback menus between versions; some builds include an audio delay, others do not. Use it only when one device is wrong and the rest are fine. Otherwise correct the TV or the bar, which then covers every app on that screen, and never stack corrections: the next app would be off by the player share.
When the feed itself carries the offset
Now and then a single channel arrives with its sound displaced at the source, often after a break in a live program. The sign: that channel is off by the same amount on the television, a phone and VLC, while its neighbors are fine. Its HD or FHD copy may be aligned differently, so try it meanwhile.
Send support on WhatsApp at +1 917 793 9264 the channel and group, the time with your time zone, the direction (voices early or late), roughly how much (a syllable, half a second, a whole word), and the player and device. The direction tells the desk which way to look.
Offsets that appeared with a new soundbar are walked through in Tivo8k with a soundbar, from cable to lip sync. No sound at all? Start with the Tivo8k no-sound checks.
Other Tivo8k fixes
No sound
Picture but silence: find whether the TV, soundbar, player or feed lost the sound, starting with the quickest test.
Missing subtitles
Subtitle list empty, blank or garbled: separate player limits from missing tracks, with steps for TiviMate, Smarters and VLC.
Buffering
Stalls and freezes traced to the line, the device or the feed, with checks ordered from quickest to slowest.
Login error
Invalid, expired or too many screens: what each sign-in message means and how to clear it in your player.
Black screen
Sound over a black picture, a spinner on one channel or on all of them: three causes, three sets of checks.
All of them on one page: Not Working.
Audio out of sync on Tivo8k: questions
Why is Tivo8k audio ahead of the picture on every channel?
The television is spending time on the picture while the sound goes straight out, most often to a soundbar fed from the TV. Motion smoothing and upscaling are the usual causes. Try Game mode, or turn motion smoothing off. If voices stay early, add a small audio delay on the bar or the TV, in one place.
Why are Tivo8k voices late on my Bluetooth headphones?
Bluetooth delays sound by design, often by a tenth of a second or more, and the picture does not wait. Use the AV sync or Bluetooth delay setting on the stick or television where one exists, or plug in wired headphones, which add no delay at all.
Can Tivo8k fix lip sync on a single channel?
Yes, when the offset is in the feed. If one channel is off on every device you own while the rest are fine, send support the channel, the time, and whether voices are early or late. Until it is corrected, try the other quality copy of that channel. Do not retune your television for one channel.
Why does Tivo8k lip sync get worse during a long match?
That pattern points at the player rather than the room or the feed: after a buffering pause, some players resume with sound and picture slightly apart. Reopen the channel to realign them. If it keeps happening, switch the player between hardware and software decoding, or try another player on that device.
Which delay control should I use for Tivo8k: TV, soundbar or player?
The one nearest the speakers actually playing: the bar or TV output delay with a soundbar, the TV setting with its own speakers, the stick or TV wireless sync with Bluetooth. Keep a player delay for one wrong device among good ones, and never stack two corrections.
Do passthrough and PCM change Tivo8k lip sync?
They can. When a soundbar decodes Dolby itself, the decoding adds a little time, and not every bar compensates. If voices are late only on surround channels, set the stick to PCM and compare. If PCM lines them up, keep it on that device, or look for an automatic lip-sync option on the bar or receiver.