Hiss on audio when using 3.5m socket

[raymate]

Making up a small machine cabinet and was testing with a TV HDMI and all is well.

The build uses a monitor with no sound so I have forced audio out via the 3.5 in doing so I get a hiss sound on some screen but not all. Its mainly when you should have no sound like on a menu etc.

How to fix, anyone else found this?

[petrockblog]

http://elinux.org/RPiconfig#Audio

[raymate]

Thank you I shall try that, just got a PI3 today so bad to installing a fresh me card and testing it out.

[herbfargus]

Let us know if you get the same hissing with the raspberry pi 3. supposedly they fixed it but I’d like to know if thats actually true

[raymate]

Did get the hiss on fresh build on Pi3 just about to try the dither setting

[herbfargus]

Not sure if its the hardware or if it can be fixed with a software update and or setting change (the raspberry pi foundation seemed to allude to a future update fix)

[raymate]

I can confirm the dither setting has fixed the hiss issue I was getting over 3.5mm

[Author]

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