Sky HD - Audio pops when changing to/from HD channel if HDMI Audio = Dolby B

NeilF · 11 Dec 2017 at 16:05

The HDMI audio output of my Sky HD box was set to "NORMAL", and I thought now I have a nice new LG E7 I should set it to "DOLBY D" so the Sky box could pass it more advanced audio other than just stereo.

However, I then noticed when flicking between Sky channels (eg: 1 and 2 - BBC1 and BBC2 HD), I'd get a obvious quick electronic click/squeel.

Flicking the Sky HD's HDMI audio back to "Normal" stopped this.

Anyone able to clarify or replicate this? Looking around it seems other folks have encountered it with TVs and amps...

So either possibly the Sky Box isn't terminating/initiating the audio signals properly

OR, there's a problem with the LG firmware? Seems the former is far more likely?

TheVoice · 11 Dec 2017 at 16:17

Are you using TV speakers, soundbar, AV receiver?

Simmz · 11 Dec 2017 at 16:18

Tried a different HDMI cable just to rule that out?

NeilF · 11 Dec 2017 at 16:33

TheVoice said:
Are you using TV speakers, soundbar, AV receiver?

This is just Sky HD --> HDMI --> TV

The TV has a fully integrated sound bar and is open to most audio formats.

NeilF · 11 Dec 2017 at 18:34

Simmz said:
Tried a different HDMI cable just to rule that out?

Amazingly... It changes the squeel down to a click!

This is trying (the original cable and a replace) in different HDMI ports on the TV too!

So the original cable makes the click far far work.

That said, even the replacement cable (& another) still mean there's a noticable click (like a static electric click) out of the internal speakers...