TV technician helping fix Sony Bravia audio delay and lip sync issues

Steve H.

Reviewed for technical accuracy

Specialities: Sony Bravia (Google TV/Android TV), audio delay & lip sync, soundbars & AV receivers, HDMI ARC/eARC, optical audio, Dolby/PCM settings, Bravia Sync (HDMI-CEC), streaming apps & firmware updates

Sony Bravia sound out of sync — lip sync delay, HDMI ARC/eARC, soundbar lag and Bluetooth audio latency

Technician avatar Technician
Hey! We’ll fix your Sony Bravia audio delay (aka lip sync / sound out of sync) without guessing.

Quick questions so we apply the right “AV sync” fix the first time:
• Are you hearing delay on TV speakers, or only through a soundbar / AV receiver?
• Connection type: HDMI ARC, HDMI eARC, optical (TOSLINK), or Bluetooth? (Bluetooth often adds audio latency.)
• Is it everywhere (live TV + apps), or only certain apps like Netflix, YouTube, Disney+, Plex?
• Any external device involved: PS5, Apple TV, Fire TV, cable box?
Once we know that, we’ll use the right combo of A/V Sync, audio output format (PCM vs Dolby/bitstream), and HDMI settings to stop the delay.
Customer
It’s a Sony Bravia (Google TV). The picture looks fine but voices are late — like lips move first and audio follows. It’s worse on Netflix and YouTube. I use a soundbar connected via HDMI ARC. So it’s basically Sony Bravia sound out of sync / audio delay.
Technician avatar Technician
Perfect — ARC soundbar setups are the #1 place where lip sync issues show up on Bravia.

Why it happens (in plain terms): the TV is processing video (motion smoothing, upscaling, Dolby Vision, etc.) while the soundbar is decoding audio (Dolby Digital/Atmos). If the TV and soundbar aren’t “agreeing” on timing, you get audio lag or “dialogue delay”. ARC/eARC can also behave differently per app (Netflix vs YouTube).

We’ll fix this in a safe order:
1) Make sure it’s not app-specific buffering or a temporary glitch.
2) Turn on the right A/V sync setting on Sony Bravia.
3) Confirm ARC wiring + Bravia Sync (HDMI-CEC) basics.
4) Adjust Digital audio out (often switching to PCM stabilizes lip sync).
5) Only if needed: eARC toggle, passthrough settings, and a clean reboot sequence.
Customer
It’s mostly streaming apps. If I switch to TV speakers it seems closer, but on the soundbar it’s definitely delayed. I’m not using Bluetooth. HDMI ARC from the Bravia to the soundbar. I also noticed it can get worse after the TV wakes from standby.
Technician avatar Technician
Great diagnostic clue: “OK on TV speakers, delayed on ARC soundbar” points to ARC timing / audio format rather than the panel itself.

Step 1 — Quick reset that often fixes Bravia ARC lip sync
1) Turn the TV off (not just sleep). If your remote has it: hold Power and choose Restart.
2) Turn the soundbar off too (unplug it for 20–30 seconds if it’s stubborn).
3) Power on the soundbar first, then the TV, then open Netflix and test a dialogue-heavy scene.

Step 2 — Confirm the HDMI ports are correct
• On the Bravia, the HDMI cable must be in the TV’s port labeled ARC or eARC/ARC.
• On the soundbar, use its HDMI port labeled ARC / TV.

If the delay is still there, we’ll enable the Sony setting designed for this: A/V Sync.
Customer
I did the restart sequence and checked the ARC ports — all correct. The delay is still noticeable. What setting should I change on the Sony Bravia for AV sync?
Technician avatar Technician
Step 3 — Turn on A/V Sync on Sony Bravia (lip sync correction)
On most Sony Bravia Google TV/Android TV models, you’ll find it here:
1) Press Settings on the remote (or Quick Settings → Settings).
2) Go to Display & Sound → Audio output.
3) Find A/V sync and set it to Auto (or On).

What this does: it adds timing correction so the audio output (especially via ARC/eARC) matches the video processing delay.

After turning it on, test the same Netflix scene. If you notice the sound is now “closer” but still slightly off, we’ll handle the most common remaining cause: audio format mismatch (PCM vs Dolby).
Customer
I set A/V sync to Auto. It improved a bit, but voices still feel a little behind. It’s not horrible now, but it’s not perfect. Any other quick solution?
Technician avatar Technician
Yes — the next “high-impact” fix for Sony Bravia audio delay with soundbar is changing the TV’s digital audio output to a format that your soundbar handles with less decoding delay.

Step 4 — Change Digital Audio Out (often fixes ARC lip sync)
1) Go to Settings → Display & Sound → Audio output.
2) Look for Digital audio out (or “Digital audio output”).
3) Set it to PCM (at least as a test).

Why PCM helps: if the TV sends Dolby/bitstream, the soundbar has to decode, which can add noticeable soundbar delay. PCM is “already decoded” audio and is often more stable for dialog sync.

After switching to PCM, test Netflix and YouTube again. If lip sync becomes correct, we can decide whether to keep PCM permanently (many people do) or adjust other settings to keep Dolby while maintaining sync.
Customer
Switching Digital audio out to PCM made a big difference — Netflix dialogue is almost perfectly synced now. But I’m worried: does PCM remove surround sound or Dolby Atmos? Also, sometimes there’s a tiny delay only when starting a video.
Technician avatar Technician
Great — that tells us the root cause was decoding/handshake timing, not your panel.

About PCM vs Dolby/Atmos:
• Some soundbars can still do multichannel from PCM, but Atmos typically requires a bitstream path (and often eARC depending on the setup).
• If your priority is “voices match lips” (most people), PCM is a very common “set-and-forget” fix for Bravia ARC lip sync issues.

That “tiny delay at the start” is usually handshake / audio wake-up when the stream switches formats. Two quick stabilizers:
Step 5 — Check eARC setting (only if your TV + soundbar support it)
• In Audio output, find eARC mode and set it to Auto (or try Off if Auto is causing weird delays). Different firmware combos behave differently here.

Step 6 — Bravia Sync (HDMI-CEC) sanity check
• Settings → Channels & Inputs → External inputs → Bravia Sync settings (HDMI-CEC) → keep it enabled so the TV and soundbar stay “in sync” when waking from standby.

If PCM fixed ongoing lip sync, we’ll keep PCM first, then tune eARC/CEC only if you still see delays when starting playback.
Customer
My TV and soundbar both support eARC, but I’m using ARC right now. I tried toggling eARC mode and it didn’t change much, but keeping PCM seems to solve the main audio lag. Is there anything else I should do in streaming apps like Netflix or YouTube for audio out of sync?
Technician avatar Technician
Yes — app-level settings can make Sony Bravia Netflix lip sync feel worse, especially when a title switches between stereo and 5.1.

Step 7 — Quick app-side checks for “audio out of sync”
• In Netflix: while playing, open Audio/Subtitles and try switching between “English” and “English (5.1)” (or similar). On some setups, one track is more stable than the other.
• In YouTube: if a specific video is off, try another video (some uploads are mastered slightly out of sync). Also try closing the app fully and reopening it.
• If the problem is only on one external device (PS5/Apple TV/cable box), we’d adjust that device’s audio output (PCM/bitstream) to match the TV/soundbar path.

But the fact PCM fixed it system-wide is strong evidence you’ve already applied the most effective “works on most Bravia” fix for soundbar lip sync delay.
Customer
This makes sense. One more thing: my friend uses Bluetooth headphones on Bravia and gets terrible lag. Is that the same issue, and can A/V sync fix Bluetooth audio delay too?
Technician avatar Technician
Bluetooth is a different beast — even good Bluetooth headphones can have noticeable Bluetooth audio lag because the signal is encoded/transmitted (A2DP) and decoded again.

On many Sony Bravia models, A/V sync can help reduce the perceived delay when using Bluetooth audio devices, but it can’t eliminate all Bluetooth latency. Best practices for Bluetooth lip sync:
• Keep A/V sync set to Auto/On.
• If the TV offers a Bluetooth “audio delay” / “AV sync” adjustment for headphones, use that slider if available.
• For zero-lag needs (gaming), wired or low-latency solutions typically perform better than Bluetooth.

For your setup though (ARC soundbar), you already did the correct path: A/V Sync + PCM = the fastest reliable fix for Sony Bravia audio delay.
Customer
Awesome. With A/V sync on Auto and Digital audio out set to PCM, the lip sync looks right in Netflix and YouTube now. I’ll keep it like this. Thanks for the quick solutions!
Technician avatar Technician
Love it — quick recap you can save:

Summary (Sony Bravia audio delay / lip sync): confirm ARC wiring, do a clean TV+soundbar restart, enable A/V Sync (Auto/On), then fix the most common cause by setting Digital audio out → PCM. If you still see delay when starting playback, fine-tune eARC mode and keep Bravia Sync (HDMI-CEC) enabled so the TV and soundbar handshake cleanly after standby.

If you want, open the chat and tell me your Bravia model + soundbar model — I can map the exact menu names and the best Dolby/PCM compromise for your setup.

Quick answer: the accepted fix

Accepted first fix for Sony Bravia audio delay (lip sync / sound out of sync): enable A/V sync (Settings → Display & Sound → Audio output → A/V sync → Auto/On). If the delay is mainly through an HDMI ARC/eARC soundbar, set Digital audio out to PCM, restart TV + soundbar, then test Netflix/YouTube dialogue again. This solves most soundbar lip sync problems without a factory reset.

Why Sony Bravia audio goes out of sync

Most Sony Bravia lip sync issues come from timing differences between video processing on the TV and audio decoding on an external device (soundbar/AV receiver). HDMI ARC/eARC handshakes, Dolby bitstream decoding, and app-specific audio tracks (stereo vs 5.1) can create audio lag. Standby/wake cycles can also cause the TV and soundbar to re-negotiate formats, making dialogue delay appear “random.” That’s why A/V Sync and stable output format (often PCM) are the fastest reliable fixes.

How to test if the lip sync fix actually worked

Test with a dialogue-heavy scene in Netflix and a talking-head video in YouTube. Pause/play a few times, then test again after the TV wakes from standby. If voices stay aligned with lip movement through your ARC soundbar, your AV sync is stable. If only the first second of audio is late, adjust eARC mode and keep Bravia Sync (HDMI-CEC) enabled so the handshake is consistent.

Sony Bravia audio delay — quick troubleshooting tips

Most cases are fixed with A/V Sync + the right digital audio output format.

Quick path: confirm HDMI is connected to the TV’s ARC/eARC port, fully restart the TV and soundbar, enable A/V Sync, then set Digital audio out to PCM if dialogue is still behind. If you’re chasing Dolby formats, test eARC mode and app audio tracks (stereo vs 5.1). Avoid risky service-menu tweaks — they rarely fix Bravia sound out of sync and can introduce new issues.

Disclaimer: This information is AI-generated and intended for general guidance only. Do not open the TV or attempt hardware repairs yourself. For advice specific to your Sony Bravia model, soundbar, and connection type (ARC/eARC/optical/Bluetooth), please consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.

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FAQ

Why is my Sony Bravia audio delayed (lip sync off)?

Sony Bravia sound out of sync is usually caused by HDMI ARC/eARC timing, soundbar decoding delay (Dolby/bitstream), video processing on the TV, or an app switching audio tracks (stereo vs 5.1). Enabling A/V Sync and using a stable output format like PCM fixes most cases.

What’s the fastest fix for Sony Bravia audio delay with a soundbar?

Turn on A/V Sync (Auto/On), then set Digital audio out to PCM as a test. Restart the TV and soundbar and re-test Netflix/YouTube. This is one of the most reliable quick solutions for soundbar lip sync problems.

Does HDMI eARC cause audio lag on Sony Bravia?

It can, depending on firmware and how the TV/soundbar handle format switching. If lip sync improves with PCM but you still notice start-of-playback delay, try toggling eARC mode (Auto ↔ Off) and keep Bravia Sync (HDMI-CEC) enabled for stable handshakes.

Why do Bluetooth headphones lag on Sony Bravia?

Bluetooth audio uses compression/transmission and typically introduces noticeable Bluetooth latency. A/V Sync can reduce perceived mismatch on supported models, but Bluetooth can’t always be made “zero-lag,” especially for gaming.

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