Surround Speakers crackling when using surround sound

[roadcat]

Hi

I replaced my Sony TV with a bigger Samsung one. I have a Sony HT receiver HT system (STR-KS470). HDMI from HT to TV ARC HDMI port.

Since then, I get intermittent crackling in my back surround speakers. If I change the receiver to 2CH the crackling stops, anything else and it starts again i.e. anything that uses the back speakers. All devices display the crackling, i.e. Sony BD, ATV, DSTV, Xbox

I assume it is a signalling msimatch, but would love to know how to fix it. Have tried setting the Audio on the TV to PCM etc, keeps coming back. Have tried devices all plugging into the receiver (it has 4 HDMI ports) and all into the TV (Also has 4).

Anyone experienced this?

 

[Rickster]

You need to use a optical cable.

 

[Sinbad]

Have you set the speakers up properly in the amp? You could be hearing clipping as the small speakers try to handle bass they're not designed for?

 

[Naks]

You need to use a optical cable.

no, no, no. HDMI, always.

Like Sinbad said, re-visit your speaker and amp configuration.

I also just got a new Samsung TV and the HDMI ARC was driving me nuts until I set it to Auto on the NAD AVR and then it just works. Also make sure that the ARC setting on the TV is set to receiver, and that the Audio Format under Additional Settings is set to PCM.

Btw, use these settings for your TV, good baseline for most modern Samsung LED panels:

Picture Mode: Movie

Backlight: 18
Contrast: 79
Brightness: 45
Sharpness: 0
Colour: 50
Tint: G50/R50

Picture Size
Picture Size: Screen Fit

Advanced Settings
Dynamic Contrast: Off
Black Tone: Off
Flesh Tone: 0
RGB Only Mode: Off
Colour Space: AUTO
White Balance 2-Point: LEAVE ALONE
Gamma: 0
Motion Lighting: Off

Picture Options
Colour Tone: Warm2
Digital Clean View: Off
MPEG Noise Filter: Off
HDMI Black Level: Low (If applicable)
Film Mode: Auto2 (If applicable)
Motion Plus: Off
Black Optimiser: Off

 

[Rickster]

no, no, no. HDMI, always.

Like Sinbad said, re-visit your speaker and amp configuration.

I also just got a new Samsung TV and the HDMI ARC was driving me nuts until I set it to Auto on the NAD AVR and then it just works. Also make sure that the ARC setting on the TV is set to receiver, and that the Audio Format under Additional Settings is set to PCM.

Btw, use these settings for your TV, good baseline for most modern Samsung LED panels:

Well when I plugged my PS3 into our TV then put the Hi-Fi on, It sounded horrid.

Then we put a Optical out cable from the TV to the Hi-Fi and it was perfect.

Hi-Fi is old and doesnt have HDMI.

 

[Naks]

Sure, if there's no HDMI, then optical.

But in any case, you should do PS3 -> HiFi -> TV. The PS3 is way better at sound processing than the TV, so rather let it do that.

I'm thinking maybe a new HDMI cable might do the trick here - old uses were quite rigid, and after being in one position for too long, they would 'warp'.

try replacing it with one of the flexible HDMI cables.

I'm assuming you have made sure that your AVR supports ARC?

 

[roadcat]

Sure, if there's no HDMI, then optical.

But in any case, you should do PS3 -> HiFi -> TV. The PS3 is way better at sound processing than the TV, so rather let it do that.

I'm thinking maybe a new HDMI cable might do the trick here - old uses were quite rigid, and after being in one position for too long, they would 'warp'.

try replacing it with one of the flexible HDMI cables.

I'm assuming you have made sure that your AVR supports ARC?

Yes it does support ARC and HDMI Ctrl. It works fine for long periods then suddenly the crackling starts, even when cartoon network is on which is most of the time Switching to Blue-Ray makes it even worse with the full 5.1 sound.

Have changed HDMI cables etc. Changed settings on everything including the suggestions Naks makes i.e. PCM etc.

Starting to wonder if it's a wireless interference issue. I have wireless S-AIR surround sound and am using wireless LAN on the TV, whereas before it was wired. Going to connect the surround speakers via the cables instead to see if that resolves the issue.

 

[roadcat]

Resolved by wiring up the surround sound speakers instead of using S-AIR. Obviously Samsung WLAN was conflicting somewhere with the wireless Surround Sound.