Solving problem with noise

Malder1 · 10-15-2006, 03:15 PM

Probably you seen topic "ILiad is making noise!" on iRex forum:
http://forum.irexnet.com/viewtopic.php?t=481

I also found this problem and I took old sound cable and did stub. I has sawed metallic jackplug and filled *external* side with white varnish and it looks very well. Jackplug should be metallic inside, but external side which you see on the photo should be electrically isolated (e.g. white varnish).

Please look on attached photos.

No noise any more.

And probably it will increase time of batteries.

NatCh · 10-15-2006, 04:57 PM

Nice.

doctorow · 10-16-2006, 03:18 AM

My old Sony notebook had the same issue. Any idea what is causing the static noises even when no program is using audio? Bad system programming or faulty hardware?

Mambo · 10-16-2006, 04:37 AM

Could you measure the increase in battery life? Test with and without the plug?

Otherwise, I mean I am not very familiar with electronics, but maybe still some circuitry related to audio is under power that could be turned off completely via software. So I am waiting for the solution from IRex.

The hissing noise is definitely a weakness of the hardware - probably cheap audio chip, should not be found in a device that claims ability to play mp3. But this is not something that you would not found on other devices as well (like laptops). It also can be a result of that the volume is on maximum (there is no possibility yet to turn up or down the volume on the Iliad). If I assume that the volume is on the maximum then the noise is though higher than I would be happy with - is at a bareable level.

On the other hand, the question if you can turn the audio off completely - can be a programming issue or hardware design issue. We will find out if they can not solve with future updates.

10-15-2006, 03:15 PM	#1
Malder1 Connoisseur Posts: 52 Karma: 10 Join Date: Aug 2006	Solving problem with noise Probably you seen topic "ILiad is making noise!" on iRex forum: http://forum.irexnet.com/viewtopic.php?t=481 I also found this problem and I took old sound cable and did stub. I has sawed metallic jackplug and filled external side with white varnish and it looks very well. Jackplug should be metallic inside, but external side which you see on the photo should be electrically isolated (e.g. white varnish). Please look on attached photos. No noise any more. And probably it will increase time of batteries. Attached Thumbnails Attached Images Last edited by Malder1; 10-15-2006 at 04:18 PM.

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10-15-2006, 04:57 PM	#2
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	Nice.

10-16-2006, 03:18 AM	#3
doctorow Guru Posts: 914 Karma: 3410461 Join Date: May 2004 Device: Kindle Touch	My old Sony notebook had the same issue. Any idea what is causing the static noises even when no program is using audio? Bad system programming or faulty hardware?

10-16-2006, 04:37 AM	#4
Mambo Gadget fan Posts: 147 Karma: 3968 Join Date: Sep 2006 Location: London Device: RM Tablet PC, iLiad, PRS 505, iPod Touch	Could you measure the increase in battery life? Test with and without the plug? Otherwise, I mean I am not very familiar with electronics, but maybe still some circuitry related to audio is under power that could be turned off completely via software. So I am waiting for the solution from IRex. The hissing noise is definitely a weakness of the hardware - probably cheap audio chip, should not be found in a device that claims ability to play mp3. But this is not something that you would not found on other devices as well (like laptops). It also can be a result of that the volume is on maximum (there is no possibility yet to turn up or down the volume on the Iliad). If I assume that the volume is on the maximum then the noise is though higher than I would be happy with - is at a bareable level. On the other hand, the question if you can turn the audio off completely - can be a programming issue or hardware design issue. We will find out if they can not solve with future updates.

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