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Gemini PDA - Hardware / Wired headphones. Faint buzzing/scratching noises
« on: April 01, 2018, 02:10:02 pm »
Yup, same "feature" on my Gemini. I have not tried to track it down and its not too worrying. As you say, you don't seem to hear it when playing audio.
Cheers
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Quote from: Lyall Pearce
Has anyone tried the ancient and venerable technology of wired earphones?
Do you hear faint intermittent 'buzzing' and 'scratching', apparently when cpu is being used, because it becomes more pronounced when scrolling, particularly using the touch screen.
Another way of describing the sound is like dust on a vinyl record during a silent part.
Using keys to scroll still makes the sound but after the key 'bip' sound.
Using bluetooth headsets don't make this soft sound.
I tried turning off both WiFi and Bluetooth to see if that made a difference, none.
When actually playing something, in my case Audible audiobooks, you can't hear the sounds then, stopping playback then I hear faint noises. As you know, Audiobooks are simply spoken so there is lots of silent parts in which the sounds are not audible.
Whilst on the faint sound, has anyone noticed that pressing a key causes the key sound to be played, sometimes, multiple times, terminating the previously started sound, as though the internal debounce mechanism is firing off the sound for each bounce? So, instead of a 'bip', it's sort of like 'b b bip'.
This is under stock android, in case anyone is asking.
Edit: it appears the 'crackling' lessens once the display turns off. Tap the on key so the display lights up, the crackling resumes, once the display goes black again, the crackling becomes very faint, pulsing every second. And no, it's not my heartbeat