Samsung TV sound cuts out? Fix intermittent audio dropouts with our complete guide covering Anynet+, HDMI ARC/eARC issues, streaming app fixes, soundbar problems & more. Updated February 2026.

Your Samsung TV sound keeps cutting out, and you're missing crucial dialogue in the middle of your favorite show. This frustration has driven thousands of Samsung TV owners to forums, support lines, and countless troubleshooting sessions.
Here's the good news: most Samsung TV audio dropout issues stem from software settings, not hardware failures. After analyzing thousands of community reports and testing solutions across multiple Samsung TV models, I've compiled everything you need to restore consistent audio without calling for service.
The most common culprits? Anynet+ (HDMI-CEC) conflicts, eARC handshake failures, and audio format incompatibilities. Each requires a different fix, and this guide walks you through every solution based on your specific symptom pattern.
Before diving into complex troubleshooting, try these proven solutions that resolve audio dropouts for most Samsung TV owners. Each fix takes less than five minutes and requires no technical expertise.
Fix #1: Cold Boot Your Samsung TV (Success Rate: ~65%)
A standard restart doesn't fully clear your TV's memory. The cold boot procedure does.
Unplug your TV from the wall outlet (not a power strip)
Wait 30 seconds
While unplugged, hold the power button on your remote for 15 seconds
Plug the TV back in and turn it on
This clears cached data that may be causing audio processing conflicts. Many users report this simple step resolves months of intermittent sound issues.
Fix #2: Disable Anynet+ (HDMI-CEC) (Success Rate: ~70%)
Anynet+ automatically syncs your TV with connected devices, but it frequently "hijacks" audio signals and causes dropouts. To disable it:
Press Home on your remote
Navigate to Settings > General
Select External Device Manager
Click Anynet+ (HDMI-CEC)
Toggle to Off
The trade-off? You'll need separate remotes for your soundbar and other devices. For most people experiencing chronic audio cuts, this sacrifice is worth stable sound.
Fix #3: Change Digital Output to PCM (Success Rate: ~60%)
Audio format conflicts cause many dropout issues. PCM (Pulse-Code Modulation) provides the most stable output:
Go to Settings > Sound
Select Expert Settings
Choose Digital Output Audio Format
Select PCM
You'll lose Dolby Atmos and surround sound with this setting, but it eliminates format negotiation issues. For detailed configuration options, explore your Samsung TV sound settings to understand all available audio modes.
Fix #4: Run Samsung Sound Test (Success Rate: Diagnostic)
Before assuming a settings issue, verify your TV speakers actually work:
Press Home on your remote
Go to Settings > Support
Select Self Diagnosis (or Device Care on newer models)
Choose Sound Test
Follow on-screen instructions
If sound plays normally during this test, your TV hardware is fine - the issue lies in connections or settings. If sound fails during the test, you may have a hardware problem requiring service. This diagnostic step helps diagnose Samsung TV issues before wasting time on irrelevant fixes.
Fix #5: Reset Sound Settings (Success Rate: ~55%)
A corrupted audio configuration can cause persistent issues. Reset to factory audio defaults:
Navigate to Settings > Sound
Select Expert Settings
Scroll to Reset Sound
Confirm by selecting Reset
This restores all audio settings without affecting your picture settings or apps. If quick fixes don't resolve your issue, a Samsung TV firmware update may contain a patch for known audio bugs.
Quick Fix | Time Required | Success Rate | Trade-off |
|---|---|---|---|
Cold Boot | 2 minutes | ~65% | None |
Disable Anynet+ | 1 minute | ~70% | Manual device control |
Switch to PCM | 1 minute | ~60% | Lose surround sound |
Sound Test | 3 minutes | Diagnostic | None |
Reset Sound | 1 minute | ~55% | Reconfigure preferences |
Understanding why audio dropouts happen helps you target the right solution faster. Samsung TV sound issues typically stem from seven distinct causes, each with recognizable patterns.
Cause #1: Anynet+ (HDMI-CEC) Conflicts
HDMI-CEC allows devices to communicate through a shared protocol. Samsung's implementation, called Anynet+, polls connected devices constantly. When multiple devices respond simultaneously - or when polling interrupts an active audio stream - sound cuts for one to three seconds.
This explains why sound often drops when you haven't touched anything. The TV is constantly "checking in" with your soundbar, game console, and streaming device. Sometimes these handshakes fail mid-stream.
Cause #2: HDMI ARC/eARC Handshake Failures
ARC (Audio Return Channel) sends audio from your TV to a soundbar or receiver through the same HDMI cable that carries video. eARC (enhanced ARC) supports higher-quality audio formats like Dolby Atmos.
The problem? Both protocols require constant "handshaking" between devices. When this negotiation fails - even momentarily - audio drops. eARC is particularly prone to issues because Samsung's implementation has documented compatibility problems with certain soundbars. A Samsung HDMI connection reset can often restore stable communication between devices.
Cause #3: Audio Format Incompatibility
Your TV outputs audio in various formats: PCM, Dolby Digital, Dolby Digital+, and Pass-through. If your soundbar doesn't support the format your TV sends, audio may cut out or fail entirely.
Streaming apps compound this issue. Netflix might send Dolby Atmos, while your cable box sends Dolby Digital 5.1. If your TV is set to "Auto," it constantly switches formats - and each switch risks a dropout.
Cause #4: Firmware Bugs
Samsung releases firmware updates regularly, but not all updates are equal. The 1402 firmware version for certain 2023 models, for example, introduced audio dropout issues that affected thousands of users. Community reports confirmed the problem, and Samsung eventually acknowledged it was under investigation.
Conversely, firmware updates often fix audio bugs. The challenge is knowing whether to update immediately or wait for others to test first.
Cause #5: External Device Conflicts
Every device connected to your TV - cable boxes, gaming consoles, streaming sticks - can cause audio issues. Cable boxes are particularly problematic because they often have their own audio processing that conflicts with your TV's settings.
Gaming consoles like the PS5 and Xbox Series X output complex audio formats that may not play well with certain TV/soundbar combinations. When your TV can't process these formats correctly, sound cuts out. Network issues can also affect streaming audio quality; using a wired internet for Samsung TV often provides more stable performance than WiFi.
Cause #6: HDMI Cable Quality
This cause is often overlooked. Older or low-quality HDMI cables lack the bandwidth for reliable ARC audio transmission. For 4K content with Atmos, you need High Speed HDMI (2.0) at minimum - Ultra High Speed (2.1) is better.
Cable length matters too. Cables over two meters are more prone to signal degradation and handshake failures. Many users have resolved years of audio issues simply by replacing a single cable.
Cause #7: One Connect Box Defects
For Samsung TVs with external One Connect boxes (common on Frame and premium QLED models), a documented defect causes audio to cut out every 45-60 minutes for one to two seconds. This specific pattern - hourly dropouts - almost always indicates a One Connect Box issue rather than settings.
Sometimes firmware issues can cause the Samsung TV not responding state along with audio problems, indicating a more systemic software issue.
Different symptom patterns point to different causes. Before trying random fixes, identify which category your issue falls into. This saves hours of unnecessary troubleshooting.
Symptom Pattern #1: Complete Sound Loss
No audio at all - from any source, including TV speakers. This usually indicates:
Sound Output set to wrong device
TV speakers disabled
Hardware failure
First step: Run Sound Test (Settings > Support > Self Diagnosis > Sound Test). If you hear sound during the test, your speakers work and the issue is configuration. If no sound plays, you may have a hardware problem.
If complete loss accompanies no picture, you might have a Samsung TV signal detection failure rather than a pure audio issue.
Symptom Pattern #2: Intermittent Dropouts (1-2 Seconds)
Sound cuts briefly then returns, happening multiple times per hour at irregular intervals. Common causes:
Anynet+ (HDMI-CEC) conflicts
eARC handshake failures
Audio format switching
This is the most common pattern and usually responds to disabling Anynet+ or switching to PCM audio output.
Symptom Pattern #3: Hourly Dropouts (Every 45-60 Minutes)
Sound cuts like clockwork, approximately once per hour. This specific timing suggests:
One Connect Box defect (for TVs with external connection boxes)
HDMI handshake protocol timer issue
If you have a One Connect Box and experience this pattern, see Section 11 for specific solutions.
Symptom Pattern #4: App-Specific Issues
Sound works fine on cable TV or game consoles but cuts out on Netflix, Prime Video, or Disney+. This indicates:
App cache corruption
Audio format conflicts with streaming content
Dolby Atmos compatibility issues
See Section 8 for streaming app-specific fixes.
Symptom Pattern #5: External Audio Only
TV speakers work perfectly, but soundbar or receiver has dropout issues. This points to:
ARC/eARC configuration problems
HDMI cable issues
Soundbar firmware needs update
If TV speakers work but external audio fails, you may also have a Samsung TV source not detected issue with your audio device.
How to Run Samsung Sound Test:
Press Home button on your Samsung remote
Navigate to Settings
Select Support
Choose Self Diagnosis (or Device Care on 2020+ models)
Select Sound Test
Follow on-screen instructions
If sound plays correctly during this test, your TV's internal speakers and audio processing are functioning. The issue lies with external connections, settings, or specific content.
Symptom Pattern | Likely Cause | Priority Section |
|---|---|---|
No sound at all | Settings or hardware | Section 4 |
Brief cuts (1-2 sec) | Anynet+/eARC | Section 5, 6 |
Hourly dropouts | One Connect Box | Section 11 |
App-specific | Streaming settings | Section 8 |
External audio only | ARC/soundbar | Section 6, 7 |
When quick fixes don't work, systematic troubleshooting eliminates causes one by one. Start with these foundational steps before moving to advanced solutions.
Step 1: Perform a Complete Cold Boot
A standard restart using your remote doesn't clear all cached data. The cold boot procedure forces a complete memory reset:
Turn off your TV using the remote
Unplug the TV from the wall outlet - not from a power strip
Wait exactly 30 seconds (this allows capacitors to fully discharge)
While the TV remains unplugged, press and hold the power button on the remote for 15 seconds
Plug the TV back into the wall outlet
Turn on the TV
Why does this work? Samsung TVs maintain certain processes in memory even when "off." These cached processes can become corrupted, especially after firmware updates or power fluctuations. A cold boot forces everything to reinitialize from scratch.
After a cold boot, your TV essentially returns to a fresh state - similar to setting up new Samsung TV for the first time, but without losing your apps and preferences.
Step 2: Reset Sound Settings
If audio settings have become corrupted, a reset returns everything to factory defaults:
Press Home on your remote
Navigate to Settings > Sound
Select Expert Settings
Scroll down to Reset Sound
Select Reset and confirm
This doesn't affect your picture settings, installed apps, or network configuration. Only audio preferences reset to defaults, which may fix configuration-related dropouts.
Step 3: Verify Sound Output Selection
A surprisingly common issue - your TV might be sending audio to the wrong destination:
Go to Settings > Sound
Select Sound Output
Verify the correct option is selected:
TV Speaker for built-in speakers
Receiver (HDMI) for soundbar/receiver via ARC
Optical for optical cable connections
Bluetooth Speaker List for wireless speakers
If you see "Receiver (HDMI)" but have no soundbar connected, or vice versa, this mismatch causes audio failures. While checking audio settings, you might also want to verify your Samsung TV display settings haven't been affected by the same configuration issue.
Step 4: Check Mute and Volume Status
Before assuming complex problems, verify the obvious:
Press the Mute button on your remote to ensure TV isn't muted
Check volume level isn't at zero
If using external speakers, verify they're not muted
Check if any connected device (cable box, console) has its own mute function activated
Some cable boxes have independent volume controls that can mute audio even when your TV volume is normal.
Step 5: Test Different Input Sources
Isolate whether the problem affects all sources or just specific ones:
Switch to a different HDMI port
Try your TV's built-in apps (Samsung TV Plus) without any external devices
Test both TV speakers and external audio if applicable
If one HDMI port works but another doesn't, you've identified a port-specific issue. If built-in apps work but external devices don't, the problem lies in your connections or external device settings.
Background apps can sometimes interfere with audio processing. Try to close apps on Samsung TV that you're not using to free up system resources.
Menu Path Reference by Model Year:
Model Year | Reset Sound Path |
|---|---|
2020-2026 | Settings > Sound > Expert Settings > Reset Sound |
2018-2019 | Settings > Sound > Expert Settings > Reset Sound |
2017 | Settings > Sound > Expert Settings > Reset |
2016 | Settings > Sound > Additional Settings > Reset Sound |
Anynet+ is Samsung's implementation of HDMI-CEC (Consumer Electronics Control), a protocol that lets connected devices communicate. While convenient, it's the single most common cause of Samsung TV audio dropouts.
Understanding Why Anynet+ Causes Audio Issues
HDMI-CEC continuously polls connected devices, asking "Are you there? What's your status?" When multiple devices respond simultaneously, or when this polling occurs during active audio playback, the audio stream momentarily interrupts.
The iFixit community first documented this solution years ago, and it remains the top fix. One user reported: "I turned off Anynet and it solved the problem. The only issue seems to be that I need to manually turn the volume off on the TV because Anynet used to do that automatically."
How to Disable Anynet+ Completely
Press Home on your remote
Navigate to Settings > General
Select External Device Manager
Click Anynet+ (HDMI-CEC)
Toggle to Off
This immediately stops all CEC communication between your TV and connected devices. For many users, audio dropouts stop completely within seconds of disabling this setting.
Alternative: Disable Specific Anynet+ Features
If you want to keep some Anynet+ functionality, try disabling individual features instead:
Go to Settings > General > External Device Manager
Keep Anynet+ On, but toggle Off:
Auto Power Link
Auto Source Selection
These sub-features cause most CEC-related audio issues while the main handshake protocol remains active.
Trade-offs of Disabling Anynet+
Feature Lost | Impact | Workaround |
|---|---|---|
Automatic power sync | Soundbar won't turn on/off with TV | Use soundbar remote or program universal remote |
Single remote control | TV remote won't control soundbar volume | Use soundbar remote |
Auto source switching | Must manually switch inputs | Minor inconvenience |
For most users experiencing chronic audio cuts, losing these conveniences is worth gaining reliable sound.
Soundbar-Specific Anynet+ Configuration
Samsung soundbars with Q-Symphony feature require Anynet+ for TV/soundbar speaker coordination. If you use Q-Symphony:
Keep Anynet+ enabled
Ensure soundbar firmware is current
Try disabling only Auto Power Link
If audio still drops with a soundbar, the issue may be ARC-related rather than Anynet+. This setting can also affect the Samsung TV auto power on problem where devices turn on unexpectedly.
When to Keep Anynet+ Enabled
Some setups work better with Anynet+ on:
Single soundbar with no other HDMI devices
Samsung ecosystem (TV + Samsung soundbar)
Users who prioritize convenience over occasional dropout
If your audio worked fine for months and suddenly started dropping, Anynet+ is unlikely the cause - look at recent firmware updates or new device additions instead. For soundbar configuration details, see our guide on Samsung TV soundbar hookup.
Verification After Disabling Anynet+
After turning off Anynet+:
Perform a cold boot (unplug for 30 seconds)
Test audio across multiple sources for at least 30 minutes
If dropouts continue, proceed to ARC/eARC troubleshooting
If Anynet+ wasn't the cause, reset Samsung HDMI connections to establish fresh handshakes with all devices.
ARC (Audio Return Channel) and eARC (enhanced Audio Return Channel) send audio from your TV to external speakers through HDMI. These technologies eliminate extra cables but introduce handshake complexity that frequently causes audio dropouts.
Understanding ARC vs. eARC
Feature | ARC | eARC |
|---|---|---|
Max bandwidth | 1 Mbps | 37 Mbps |
Dolby Atmos | Limited (lossy) | Full (lossless) |
DTS:X | No | Yes |
Cable requirement | HDMI 1.4+ | HDMI 2.1 |
Stability | Generally more stable | More features, more issues |
eARC's higher bandwidth enables better audio quality but requires more precise signal handling. When eARC handshakes fail, audio cuts out.
Fix #1: Force ARC Mode by Disabling eARC
Many users report stable audio after switching from eARC to standard ARC:
Go to Settings > Sound
Select Expert Settings
Find HDMI-eARC Mode
Set to Off
This forces your TV to use the older, more stable ARC protocol. You'll lose lossless Dolby Atmos support, but compressed Atmos (Dolby Digital+) still works over standard ARC.
Fix #2: Change Digital Output Audio Format
Format negotiation failures cause many eARC dropouts. Simplify by forcing a specific format:
Navigate to Settings > Sound > Expert Settings
Select Digital Output Audio Format
Choose from:
PCM - Most stable, stereo/5.1 only
Auto - TV decides (can cause switching issues)
Pass-through - Sends original format to soundbar
For troubleshooting, start with PCM. If audio stabilizes, gradually try Auto or Pass-through.
Fix #3: Verify HDMI Cable Quality
ARC/eARC require specific cable capabilities:
For ARC: High Speed HDMI (2.0) minimum
For eARC with Atmos: Ultra High Speed HDMI (2.1) recommended
Length: Under 2 meters (6.5 feet) for best reliability
Run Samsung's built-in cable test:
Go to Settings > Support > Device Care
Select Self Diagnosis
Choose Signal Information
Select HDMI Cable Test
If the test fails or shows warnings, replace your cable before further troubleshooting.
Fix #4: Use the Correct HDMI Port
Not all HDMI ports support ARC. On most Samsung TVs, only one port (usually HDMI 3 or HDMI 2 on newer models) is labeled "ARC" or "eARC."
Check the back of your TV or One Connect Box for port labels. Using a non-ARC port for your soundbar guarantees no audio return channel functionality.
Fix #5: Proper Reconnection Sequence
When ARC stops working, the reconnection order matters:
Unplug both TV and soundbar from power
Disconnect HDMI cable from both ends
Wait 60 seconds
Reconnect HDMI cable to TV's ARC port first
Connect other end to soundbar's HDMI OUT (TV-ARC) port
Plug in soundbar first, then TV
Turn on soundbar, then TV
This sequence ensures proper handshake initialization. For Sonos Arc or Beam users, your Sonos Samsung eARC connection may require additional app-based configuration.
Fix #6: Optical Cable Fallback
When HDMI ARC proves unreliable, optical provides stable (though limited) audio:
Connect optical cable from TV's DIGITAL AUDIO OUT to soundbar's OPTICAL IN
Go to Settings > Sound > Sound Output
Select Optical
Optical limitations:
Maximum 5.1 channels (no Atmos)
No volume control sync with TV remote
Separate cable required
For a complete guide on all connection methods, see Samsung TV audio out options.
ARC/eARC Quick Reference:
Issue | Try This First |
|---|---|
Intermittent dropout | Disable eARC Mode |
No sound at all | Verify ARC port, check Sound Output |
Sound works then fails | Replace HDMI cable |
Works on some apps | Change Digital Output to PCM |
Network stability can also affect audio when streaming over ARC. A Samsung TV LAN connection provides more reliable streaming than WiFi for bandwidth-intensive content with high-quality audio.
External audio systems add variables that built-in speakers don't have. Samsung soundbars, third-party systems, and AV receivers each present unique challenges.
Samsung Soundbar Pairing Issues
Samsung Q-series soundbars (Q990C, Q930C, Q800C, Q600A) are designed to work seamlessly with Samsung TVs. In practice, firmware mismatches and feature conflicts create audio dropouts.
Update Soundbar Firmware First:
Open SmartThings app on your phone
Select your soundbar
Check for firmware updates
Install any available updates
Alternatively, update via USB:
Visit Samsung's support page for your soundbar model
Download the latest firmware
Extract to USB drive root folder
Insert USB into soundbar's service port
Power cycle the soundbar
Correct Connection Setup:
For HDMI ARC connection:
Connect HDMI cable from soundbar's HDMI OUT (TV-ARC) to TV's HDMI ARC port
Set TV Sound Output to Receiver (HDMI)
Enable Anynet+ for automatic control (if stable)
Common mistake: Connecting to soundbar's HDMI IN instead of HDMI OUT. The "OUT" port sends audio TO the TV and receives it back via ARC.
Q-Symphony Configuration:
Q-Symphony uses both TV speakers and soundbar simultaneously. Requirements:
Compatible Samsung TV (2020 or newer)
Compatible Samsung soundbar
Both devices on current firmware
To enable:
Go to Settings > Sound > Sound Output
Select your soundbar
Enable Q-Symphony if available
If Q-Symphony causes dropouts, disable it and use soundbar-only output.
Third-Party Soundbar Tips:
Sonos Arc/Beam:
Requires eARC for Atmos (ARC for standard audio)
Use Sonos app to configure TV audio settings
May need TV reboot after initial setup
Bose Soundbar:
Often works better with TV's eARC Mode set to Off
Use optical as fallback if HDMI unstable
Yamaha/Denon Receivers:
Verify receiver's HDMI-CEC settings match TV
Some receivers need "TV Audio Input" set specifically to ARC
Optical Connection as Fallback:
When HDMI ARC fails consistently:
Connect optical cable from TV to soundbar
Set TV Sound Output to Optical
Set soundbar input to Optical or D.IN
Trade-offs:
Maximum 5.1 channel audio (no Atmos)
Separate remote control for volume
Most reliable connection method
Bluetooth Audio Option:
As a last resort, Bluetooth eliminates cable handshake issues entirely:
Put soundbar in Bluetooth pairing mode
Go to TV Settings > Sound > Sound Output
Select Bluetooth Speaker List
Pair your soundbar
Bluetooth limitations:
100-200ms audio delay (lip sync issues)
Compressed audio quality
May disconnect during heavy WiFi usage
If Bluetooth interferes with other audio settings, you may need to disable Samsung TV Bluetooth temporarily.
If sound works but is delayed rather than cutting out, you have a sync issue rather than dropout. See Samsung TV audio delay settings for lip sync adjustment.
Streaming apps handle audio differently than cable TV or external devices. Netflix might send Dolby Atmos while your cable box sends Dolby Digital 5.1 - and each format change risks dropout.
Netflix-Specific Fixes
Netflix audio dropouts often stem from Atmos format conflicts. Try these solutions:
Change Audio Track Within Netflix:
Start playing content
Press up on remote to access controls
Select Audio & Subtitles
Switch from Atmos to 5.1 or Stereo
If 5.1 works without dropout but Atmos doesn't, your audio system may not fully support Atmos passthrough.
Clear Netflix App Cache:
Go to Settings > Apps
Select Netflix
Choose Clear Cache (not Clear Data - that erases login info)
Restart Netflix
Cache corruption causes many app-specific audio issues. This step takes seconds and often resolves months of problems.
Reinstall Netflix:
Press and hold the Home button
Select Apps
Find Netflix, press and hold
Select Delete or Uninstall
Reinstall from Samsung TV App Store
Fresh installation ensures no corrupted files affect playback.
Prime Video Audio Issues
Amazon Prime Video has its own audio quirks on Samsung TVs:
Disable Dolby Digital Plus in Prime:
Open Prime Video app
Go to Settings > Audio
If available, switch from Dolby Digital Plus to Stereo
Change TV Audio Output:
While Prime Video is open, go to TV Settings > Sound > Expert Settings
Set Digital Output Audio Format to PCM
Test playback
Some Prime Video content streams with higher bitrate audio that overwhelms certain HDMI connections.
Disney+ Sound Problems
Disney+ heavily features Dolby Atmos content, which causes format switching issues:
Force Stereo Playback:
Start content
Access audio settings within the app
Select a non-Atmos audio track if available
General Fix for All Streaming Apps:
Set TV Digital Output to PCM before opening app
Clear app cache
Ensure TV firmware is current
Smart Hub Reset
When multiple streaming apps have audio issues, reset the Smart Hub entirely:
Go to Settings > Support
Select Device Care (or Self Diagnosis)
Choose Reset Smart Hub
Enter PIN (default: 0000)
Confirm reset
This removes all apps and reinstalls them fresh. You'll need to log back into each service.
For persistent Samsung TV buffering issues that accompany audio problems, network bandwidth may be insufficient for high-quality audio streams.
Network Considerations
Streaming audio requires consistent bandwidth. Problems with audio often correlate with network issues:
Use ethernet instead of WiFi when possible
Ensure router is within reasonable range
Check for bandwidth competition from other devices
Consider upgrading internet speed for 4K Atmos content
External Streaming Device Workaround
If Samsung's built-in apps consistently have audio issues, an external streaming device often solves the problem:
Roku Ultra - Reliable audio passthrough
Apple TV 4K - Excellent Atmos support
Fire TV Stick 4K Max - Good Samsung compatibility
Connect the streaming device directly to your soundbar's HDMI input (if available) rather than through the TV. This bypasses TV audio processing entirely.
If considering a Fire TV Stick, be aware of potential Firestick Samsung connection problem issues that have their own troubleshooting requirements.
For detailed instructions on clearing cached data for any app, see how to clear cache on Samsung TV.
Audio format settings confuse many users, but understanding them prevents most format-related dropouts. Here's what each setting actually does and when to use it.
Understanding Audio Formats
Format | What It Does | Best For |
|---|---|---|
PCM | Uncompressed stereo or 5.1 | Maximum stability, troubleshooting |
Dolby Digital | Compressed 5.1 surround | Optical connections, older soundbars |
Dolby Digital+ | Higher quality compressed, supports Atmos | ARC connections, streaming |
Pass-through | Sends original format unchanged | eARC with Atmos soundbars |
Auto | TV selects format based on content | Convenience (but can cause switching issues) |
When to Use PCM
Choose PCM when:
Troubleshooting any audio dropout issue
Using optical cable connection
Your soundbar doesn't support advanced formats
You prioritize stability over surround sound
PCM limitations:
Stereo only over optical
Up to 5.1 over HDMI
No Dolby Atmos
When to Use Auto
Auto mode lets your TV select the best format for each content type. It works well when:
You have a modern eARC soundbar
Your system supports all formats
You haven't experienced dropout issues
Auto risks:
Format switching between content can cause brief dropouts
Some soundbars can't switch formats quickly
When to Use Pass-through
Pass-through sends audio exactly as received to your soundbar, letting the soundbar decode it. Use when:
Your soundbar is Atmos-capable
Connected via eARC
You want highest quality audio
Pass-through requires:
eARC connection (not standard ARC for Atmos)
Compatible soundbar with internal decoding
Dolby Atmos Compatibility Setting
Some Samsung TVs have a separate Dolby Atmos toggle:
Go to Settings > Sound > Expert Settings
Find Dolby Atmos Compatibility (or just Dolby Atmos)
Toggle On or Off
When On, the TV allows Atmos content to pass through. If your soundbar doesn't support Atmos, leave this Off to prevent format conflicts.
Recommended Configuration by Equipment:
Your Setup | Digital Output | eARC Mode | Notes |
|---|---|---|---|
TV speakers only | PCM | N/A | Simplest option |
Basic soundbar (optical) | Dolby Digital | Off | Max 5.1 |
Soundbar via ARC | Auto or Dolby Digital+ | Off | Good balance |
Atmos soundbar via eARC | Pass-through | Auto | Full quality |
Unstable audio (any setup) | PCM | Off | Troubleshooting mode |
Step-by-Step Atmos Setup:
For Dolby Atmos with a compatible soundbar:
Connect soundbar to TV's eARC port with HDMI 2.1 cable
Set HDMI-eARC Mode to Auto
Set Digital Output Audio Format to Pass-through
Enable Dolby Atmos Compatibility (if available)
Set Sound Output to Receiver (HDMI)
Test with known Atmos content (Netflix, Disney+)
If audio cuts during Atmos playback but works with other content, your connection can't reliably handle Atmos bandwidth. Try setting eARC Mode to Off (forcing standard ARC) and Digital Output to Auto.
For complete audio configuration options, explore all Samsung TV audio options available on your specific model.
Troubleshooting Format Issues:
If you're unsure which format is causing problems:
Set Digital Output to PCM (most stable)
Test for one hour - if stable, format was the issue
Change to Auto, test again
If dropout returns, identify which content triggers it
For that content, use PCM or adjust app's audio settings
Different Samsung TV series have distinct audio architectures and known issues. Solutions that work for one model may not apply to another.
Find Your Model Number First
Before troubleshooting, identify your exact TV model:
Go to Settings > Support
Select About This TV (or Contact Samsung)
Note the Model Code (e.g., QN65S95CAFXZA)
The model code tells you:
Screen size (QN65 = 65 inches)
Series (S95C = 2023 OLED)
Region variant (AFXZA = USA)
For help deciphering your code, use Samsung TV model number lookup resources.
QLED Series (Q60, Q70, Q80, Q90)
QLED TVs are Samsung's quantum dot LED lineup, ranging from budget to premium.
Common Issues:
Anynet+ sensitivity higher than other series
eARC implementation varies by year
Q90/Q95 models have Object Tracking Sound that can conflict with soundbars
Recommended Settings:
Disable Anynet+ as first troubleshooting step
For Q90/Q95, disable Object Tracking Sound when using external audio
eARC Mode: Try Off first, then Auto if stable
OLED Series (S90C, S95C, S90D, S95D)
Samsung's OLED lineup offers premium picture but has documented audio issues.
Known Firmware Issues:
S90C/S95C firmware version 1402 caused widespread audio dropouts
Samsung acknowledged the issue was "under investigation" in community forums
Users reported waiting months for fixes
What to Do:
Check current firmware in Settings > Support > About This TV
Search Samsung Community for your firmware version + "audio"
If your version has reported issues, consider waiting for updates
Alternatively, try all troubleshooting steps in this guide
If your Samsung TV needs a software update to resolve audio bugs, follow our Samsung TV firmware update guide for step-by-step instructions.
The Frame TV
The Frame's unique design includes an external One Connect Box that houses all connections.
Special Considerations:
All HDMI connections go through One Connect Box
Box-to-TV cable can cause issues if damaged
Art Mode to TV Mode transitions may cause brief audio drops
Frame-Specific Fixes:
Check One Connect Box cable connection at both ends
Ensure adequate ventilation around One Connect Box
If hourly dropouts occur, see Section 11 for One Connect troubleshooting
Neo QLED Series
Samsung's premium LED lineup with mini-LED backlighting.
Audio Features That Can Cause Issues:
Object Tracking Sound (OTS) - Creates immersive audio using multiple speakers
Q-Symphony - Combines TV and soundbar speakers
SpaceFit Sound - Automatically adjusts audio based on room
When Using External Audio:
Go to Settings > Sound
Disable Object Tracking Sound
Disable SpaceFit Sound
If using soundbar, configure Q-Symphony only if both devices support it
Gaming audio can have specific issues on Neo QLED models. If the game mode keeps turning off along with audio problems, the issues may be related.
Crystal UHD (Budget Series)
Samsung's entry-level smart TVs have limited audio capabilities:
May lack eARC (ARC only)
Limited audio processing power
Fewer Expert Settings options
Budget Series Tips:
Use PCM output for stability
Consider optical over ARC
Don't expect Atmos passthrough
Model Year Menu Differences:
Model Year | Settings Path | Notes |
|---|---|---|
2023-2026 | Settings > All Settings > Sound | Newest interface |
2020-2022 | Settings > Sound | Standard Tizen OS |
2018-2019 | Settings > Sound | Older Tizen version |
2017 | Settings > Sound | May lack some Expert options |
The One Connect Box is an external unit that houses HDMI ports, USB connections, and antenna inputs for select Samsung TVs, primarily The Frame and premium QLED models. A documented defect causes periodic audio dropouts with a very specific pattern.
Identifying One Connect Box Issues
The telltale sign: Audio drops for 1-2 seconds every 45-60 minutes, almost like clockwork.
This pattern occurs because the One Connect Box periodically renegotiates HDMI handshakes with connected devices. When this negotiation interrupts active audio, sound drops briefly.
Community reports on Samsung's forums document this extensively:
"After about 45-60 minutes of watching anything, the sound cuts out for a couple of seconds and comes back."
"I now believe there is some sort of defect with the One Connect Box. Any device connected via HDMI on the One Connect box seems to have this issue."
Workaround #1: Connect Devices to Soundbar Instead
If your soundbar has HDMI inputs:
Connect gaming console, streaming device, etc. directly to soundbar HDMI IN
Connect soundbar HDMI OUT to TV's ARC port on One Connect Box
Set soundbar as the "hub" for all devices
This bypasses the One Connect Box's HDMI processing for device audio, using it only for ARC return audio from TV apps.
Workaround #2: Use Optical Audio
Remove ARC from the equation entirely:
Connect optical cable from One Connect Box to soundbar
Set TV Sound Output to Optical
Control soundbar volume separately
This eliminates HDMI handshake issues but loses:
Atmos support
CEC control convenience
Single-remote operation
Workaround #3: Disable Anynet+ and eARC
Reduce handshake complexity:
Disable Anynet+ (HDMI-CEC) completely
Set eARC Mode to Off
Set Digital Output to PCM
This prevents the One Connect Box from continuously polling devices.
When Service is Required
If all workarounds fail and you experience the exact 45-60 minute dropout pattern:
Document the issue (note times, content, connected devices)
Contact Samsung Support with your model and serial number
Reference the known One Connect Box audio issue
Request warranty service if within coverage
Samsung has acknowledged this issue in support responses, making warranty claims more straightforward if you can demonstrate the specific symptom pattern.
Warranty Considerations
Standard Samsung warranty: 1 year from purchase
Samsung Care+: Extended coverage available
Document everything: Screenshot error messages, note dates/times
If your TV and One Connect Box are within warranty, replacement of the One Connect Box (not the entire TV) often resolves the issue.
Firmware updates can fix audio bugs - or introduce new ones. Understanding when and how to update helps you make informed decisions.
Check Current Firmware Version
Go to Settings > Support
Select About This TV
Note the Software Version number
Compare this to the latest version available on Samsung's support website for your specific model.
Automatic Update Setup
For most users, automatic updates provide the best balance:
Go to Settings > Support
Select Software Update
Enable Auto Update
With Auto Update enabled, your TV downloads and installs updates during standby. Updates apply the next time you turn on the TV.
Manual Update via Internet
If Auto Update is disabled or you want to update immediately:
Go to Settings > Support > Software Update
Select Update Now
Wait for download and installation
TV restarts automatically when complete
Note: If "Update Now" is grayed out, a streaming app may be running in the background. Switch to TV source (antenna or Samsung TV Plus) first.
USB Update Process
For TVs not connected to internet, or when automatic updates fail:
Visit samsung.com/us/support/downloads on your computer
Enter your TV model number
Download the latest firmware file
Extract the ZIP file
Copy the extracted folder to a FAT32-formatted USB drive's root directory
Do NOT place files inside another folder
Insert USB into TV (or One Connect Box)
Go to Settings > Support > Software Update > Update Now
Select Yes when prompted to search USB
Critical: Don't unplug the TV or USB during installation. Interruption can corrupt the TV's firmware.
Post-Update Steps
After any firmware update:
Perform a cold boot (unplug for 30 seconds)
Check Sound settings - they may reset to defaults
Reconfigure audio format, sound output, and Anynet+ preferences
Test audio across multiple sources
When NOT to Update Immediately
New firmware versions occasionally introduce bugs, including audio issues. Consider waiting 1-2 weeks after a new release to:
Check Samsung Community forums for reports
Search "[your model] [firmware version] audio"
See if others report problems before updating
The firmware version 1402 for S90C/S95C models, for example, caused widespread audio dropouts. Users who waited for community feedback avoided weeks of frustration.
Known Firmware Audio Fixes
Samsung doesn't always detail what firmware updates fix, but community testing reveals patterns:
eARC stability improvements
Anynet+ polling frequency adjustments
App audio format handling
HDMI handshake timing
If you experience issues after an update, contact Samsung support. They can sometimes provide workarounds or expedite fixes if enough users report the same problem.
If a firmware update causes your Samsung initial setup freeze, you may need to perform a factory reset to recover.
DIY troubleshooting resolves most Samsung TV audio issues. But some problems require professional service. Knowing when to call saves time and frustration.
Signs of Hardware Failure
Contact Samsung if you observe:
Sound Test fails (no audio during Settings > Self Diagnosis > Sound Test)
Distorted audio on all sources including TV's own menus
Crackling, popping, or static that persists after all troubleshooting
Complete audio failure that cold boot doesn't resolve
Physical damage to speakers or connections
Burning smell from TV
These symptoms suggest hardware failure rather than settings or software issues.
Warranty Coverage
Standard Samsung Warranty:
Duration: 1 year from purchase date
Coverage: Manufacturing defects, hardware failures
Proof required: Receipt or registration
What's Covered:
Speaker failure
Audio processing board issues
HDMI port defects
One Connect Box failures
What's NOT Covered:
Physical damage
Improper installation
Software issues (usually fixable without service)
Samsung Care+ (Extended Warranty):
Available at purchase or within 90 days
Extends coverage to 2-3 years
May include accidental damage protection
How to Contact Samsung
Phone Support:
US: 1-800-726-7864
Hours: 8AM-12AM EST, 7 days
Online Support:
samsung.com/us/support
Live chat available
Email support option
Samsung Members App:
Built into Samsung TVs and phones
In-app support chat
Diagnostic tools
Information to Have Ready:
Before contacting support, gather:
Model number - Found in Settings > Support > About This TV
Serial number - On TV's back panel or in About This TV
Purchase date - Receipt or order confirmation
Problem description - When it started, pattern, what you've tried
Firmware version - Current software version
Screenshots/videos - Documentation of the issue
Authorized Service Centers
If service is required:
Visit samsung.com/us/support/service/locations
Enter your ZIP code
Choose from authorized repair centers near you
Samsung-authorized service ensures:
Genuine Samsung parts
Trained technicians
Warranty-covered repairs handled properly
Out-of-Warranty Repair Costs
For TVs past warranty, expect:
Diagnostic fee: $50-100
Audio board replacement: $150-300
Speaker replacement: $100-200
Labor: $75-150/hour
For older TVs, compare repair costs against new TV prices before proceeding.
Before calling support, ensure you've completed all relevant Samsung TV support help steps - support agents will walk through these anyway.
Preventing audio issues is easier than troubleshooting them. These practices keep your Samsung TV's audio system running smoothly.
Enable Automatic Updates
Keep firmware current to receive bug fixes:
Go to Settings > Support > Software Update
Enable Auto Update
Your TV updates during standby
Consider waiting 1-2 weeks after major updates to check community feedback before installing.
Use Quality HDMI Cables
Invest in certified cables:
High Speed HDMI (2.0) minimum for ARC
Ultra High Speed HDMI (2.1) for eARC and 4K120
Length under 2 meters when possible
Certified cables (look for official HDMI logo)
Replace cables every few years, especially if moved frequently.
Practice Proper Shutdown
Don't cut power abruptly:
Use remote or TV button to turn off
Don't unplug from wall while TV is on (except for troubleshooting)
Let TV complete shutdown before unplugging
Abrupt power loss can corrupt settings and audio configuration.
Use Surge Protection
Power fluctuations damage electronics:
Connect TV to quality surge protector
Replace surge protector every 2-3 years
Consider UPS (battery backup) for expensive TVs
Run Periodic Sound Tests
Monthly diagnostics catch issues early:
Go to Settings > Support > Self Diagnosis
Run Sound Test
If you notice changes from previous tests, troubleshoot before issues worsen
Keep Apps Updated
Streaming app updates include audio fixes:
Go to Apps (press and hold Home button)
Select Settings
Enable Auto Update
Or manually update apps showing issues.
Cable Management
Proper cable handling prevents damage:
Don't bend HDMI cables sharply
Avoid pinching cables behind TV
Keep cables away from heat sources
Don't coil excess cable tightly
Environmental Considerations
Your TV's environment affects performance:
Ensure adequate ventilation around TV and One Connect Box
Keep TV away from speakers that cause vibration
Avoid extreme temperature fluctuations
Dust vents periodically
For those setting up a new TV system, following proper Samsung TV initial configuration from the start prevents many common audio issues.
This specific pattern - approximately every 45-60 minutes - typically indicates a One Connect Box issue or HDMI handshake timer problem. The One Connect Box periodically renegotiates connections with devices, and this process can interrupt audio. Try connecting devices directly to your soundbar instead of through the One Connect Box, or use optical audio as a workaround.
PCM resolves audio dropouts in many cases because it eliminates format negotiation issues. When set to PCM, your TV outputs simple, uncompressed audio that virtually all devices can handle. The trade-off is losing Dolby Atmos and advanced surround sound - you'll get stereo or basic 5.1 at most. Start with PCM for troubleshooting, then try other formats once you've confirmed stability.
Yes, certain issues are documented. Samsung's eARC implementation has known compatibility problems with some soundbars. The One Connect Box on Frame and premium QLED models has a documented defect causing hourly dropouts. Specific firmware versions (like 1402 for S90C/S95C) introduced audio bugs that Samsung acknowledged. These aren't universal defects affecting all TVs, but they're widespread enough that Samsung support is familiar with them.
This indicates an ARC/eARC configuration issue rather than a TV problem. Check that your soundbar is connected to the correct HDMI port (labeled ARC or eARC), Sound Output is set to Receiver (HDMI), and Anynet+ is enabled if your soundbar requires it. Also verify your soundbar's input is set to TV ARC or D.IN, not a specific HDMI input.
Often yes - many audio bugs are software-related and fixable via firmware. Samsung regularly releases updates that improve eARC stability, Anynet+ behavior, and app audio handling. However, firmware updates occasionally introduce new issues. Check Samsung Community forums for your specific model before updating to see if others report problems with the latest version.
App-specific dropouts usually stem from audio format conflicts. Netflix streams Dolby Atmos content that may not be compatible with your TV/soundbar configuration. Try changing the audio track within Netflix from Atmos to 5.1 or Stereo. Also clear Netflix app cache (Settings > Apps > Netflix > Clear Cache) and ensure your TV's Digital Output is set appropriately for your audio system.
Try all troubleshooting first - most audio dropouts are fixable through settings. If you've exhausted all options, the problem occurs during Samsung's Sound Test (indicating hardware failure), and you're within the return window, exchange may be appropriate. If outside the return window but within warranty, contact Samsung for service. Document everything: timestamps, patterns, and troubleshooting attempted.
Run Samsung's built-in cable test: Settings > Support > Device Care > Self Diagnosis > Signal Information > HDMI Cable Test. If the test fails or shows warnings, replace the cable. For manual testing: use a certified High Speed or Ultra High Speed HDMI cable under 2 meters long. If audio stabilizes with the new cable, the old one was the culprit.
Sudden onset usually indicates a firmware update changed something. Check Settings > Support > About This TV for recent update dates. Try resetting sound settings (Settings > Sound > Expert Settings > Reset Sound) and performing a cold boot. If the issue started immediately after connecting a new device, that device may be causing conflicts.
No, but it's common enough across multiple model lines to be a recognized pattern. QLED and OLED models experience more ARC/eARC issues due to advanced audio feature requirements. Frame TVs with One Connect boxes have the documented hourly dropout pattern. Crystal UHD (budget) models have fewer issues but also fewer advanced audio features. The specific cause varies by model, year, and connected equipment.
Samsung TV audio dropouts frustrate thousands of users, but the solutions are well-documented. Start with the quick fixes - cold boot, disable Anynet+, switch to PCM - before moving to advanced troubleshooting. Identify your specific symptom pattern to target the right cause.
For most users, disabling Anynet+ (HDMI-CEC) resolves chronic audio cuts within seconds. If you have a One Connect Box and experience hourly dropouts, connecting devices through your soundbar instead typically solves the issue. And when streaming apps cause problems, clearing cache and adjusting audio format settings usually restores reliable sound.
Keep this guide bookmarked for reference. Audio settings occasionally reset after firmware updates, and knowing exactly where to find each option saves troubleshooting time. If you've tried everything and still experience issues, Samsung support can arrange warranty service for confirmed hardware problems.
Your Samsung TV should deliver reliable audio for years of entertainment. With the right settings configured, it will.
Have a Samsung TV audio fix that worked for you? Share it in the comments to help other readers facing the same issue.