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[LG TV] How to Fix Echoing or Out-of-Sync Sound When Using TV

When the TV’s built-in speakers and an external speaker (such as a soundbar) play audio at the same time, you may hear an echoing sound.. This is typically caused by a slight audio delay (latency) because the TV and the soundbar process digital signals at different speeds.. To resolve thi.

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What to Check First

Open the official LG USA article for the latest model-specific checks.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for [LG TV] How to Fix Echoing or Out-of-Sync Sound When Using TV Speakers and External Speakers Together?

When the TV’s built-in speakers and an external speaker (such as a soundbar) play audio at the same time, you may hear an echoing sound.. This is typically caused by a slight audio delay (latency) because the TV and the soundbar process digital signals at different speeds.. To resolve thi.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

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Read the Official LG Guide