Help with "click" bug sound.

muser · 03-12-2023, 02:46 PM

I have Boox Note + 10.3 inch that each time when screen refresh (partially or totally) it makes a "click" and a "buzz" sound when i use the screen. Which comes from speakers. Is this a known bug?

Renate · 03-12-2023, 09:20 PM

Hmm, that's not good. Does the volume control affect it at all?

The eink circuitry uses a bunch of voltage pumps to generate the higher voltages (10-15V?).
This presents a load on the power systems.
It could be that this is feeding into the audio.
Or it could be that it's all by induction/radiation of nearby circuits.

It could be unique to yours if a capacitor is missing/faulty.

There is also the problem of capacitors themselves making noise.
These multilayer caps can be a bit piezoelectric.

Pajamaman · 03-13-2023, 06:44 AM

Are you sure the volume is down. Otherwise I'd return it, or disable the speaker, probably by disconnecting it. I don't how hard that is.

muser · 03-13-2023, 10:42 AM

It doesn't have volume buttons. It's an outdated device bought cheap on "second hand"

Renate · 03-13-2023, 12:06 PM

It still has "volume control".
If you have ADB working you can:

Code:

input keyevent VOLUME_UP
input keyevent VOLUME_DOWN

Pajamaman · 03-14-2023, 01:33 PM

Quote:

Originally Posted by muser

It doesn't have volume buttons. It's an outdated device bought cheap on "second hand"

It doesnt have software volume control? I have a Nova Pro. Same generation. In the home, When I touch the top menu line, a drop down appears with a speaker control. You have it too, I reckon. Same gen.

03-12-2023, 02:46 PM	#1
muser Member Posts: 11 Karma: 10 Join Date: Sep 2022 Device: Boox Tab Ultra	Help with "click" bug sound. I have Boox Note + 10.3 inch that each time when screen refresh (partially or totally) it makes a "click" and a "buzz" sound when i use the screen. Which comes from speakers. Is this a known bug?

03-13-2023, 12:06 PM	#5
Renate Onyx-maniac Posts: 3,918 Karma: 17236157 Join Date: Feb 2012 Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	It still has "volume control". If you have ADB working you can: Code: input keyevent VOLUME_UP input keyevent VOLUME_DOWN

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03-12-2023, 09:20 PM	#2
Renate Onyx-maniac Posts: 3,918 Karma: 17236157 Join Date: Feb 2012 Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	Hmm, that's not good. Does the volume control affect it at all? The eink circuitry uses a bunch of voltage pumps to generate the higher voltages (10-15V?). This presents a load on the power systems. It could be that this is feeding into the audio. Or it could be that it's all by induction/radiation of nearby circuits. It could be unique to yours if a capacitor is missing/faulty. There is also the problem of capacitors themselves making noise. These multilayer caps can be a bit piezoelectric.

03-13-2023, 06:44 AM	#3
Pajamaman Wizard Posts: 2,861 Karma: 10700629 Join Date: May 2016 Location: Canada Device: Onyx Nova	Are you sure the volume is down. Otherwise I'd return it, or disable the speaker, probably by disconnecting it. I don't how hard that is.

03-13-2023, 10:42 AM	#4
muser Member Posts: 11 Karma: 10 Join Date: Sep 2022 Device: Boox Tab Ultra	It doesn't have volume buttons. It's an outdated device bought cheap on "second hand"

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