Sound on Kindles

lyssdod · 07-11-2014, 12:41 PM

Hi all,

I want to get sound working on my K4NT (possibly PW) via USB audio. So I ordered these (http://www.dx.com/p/virtual-5-1-surr...und-card-22475 and http://www.dx.com/p/cy-u2-053-ri-ang...ck-10cm-222708) to connect to the Kindle's USB. Hardware hack would be ideal, but I could not find internal USB for this (though I did not opened my device, just inspected motherboard's pics).

So, this would ultimately require OTG kernel module as well as USB Audio modules, ALSA and so on. Guys from this thread (https://www.mobileread.com/forums/sho...d.php?t=206188) got some results in module compiling, so I'm asking their suggestions about proper toolchain.

Any comments are welcomed

HarryT · 07-11-2014, 01:23 PM

This seems like rather a pointless exercise, if you'll forgive me for saying so. If you want a Kindle with sound, why not simply get one? Eg a Kindle Touch?

knc1 · 07-11-2014, 01:30 PM

so what is a K4 PW (planned) model?

hawhill · 07-11-2014, 03:47 PM

I agree with HarryT. Especially since building and running USB OTG seems so big a hassle that almost nobody bothers, and then you need a solution for powering all this, which needs an external power source, too. So I would also suggest to either buy a Kindle with audio, or settle for a small SoC computer like the RasPi which already have audio and/or USB host mode.

knc1 · 07-11-2014, 04:33 PM

Quote:

Originally Posted by lyssdod

- - - -
Hardware hack would be ideal, but I could not find internal USB for this (though I did not opened my device, just inspected motherboard's pics).
- - - -

It is hardwired to the 3G card connector pin-out.
See: http://pinoutsguide.com/Slots/mini_pcie_pinout.shtml
So you should find it on pins 34, 36, 38, 40

07-11-2014, 12:41 PM	#1
lyssdod Member Retired Posts: 6 Karma: 15846 Join Date: Dec 2012 Device: none	Sound on Kindles Hi all, I want to get sound working on my K4NT (possibly PW) via USB audio. So I ordered these (http://www.dx.com/p/virtual-5-1-surr...und-card-22475 and http://www.dx.com/p/cy-u2-053-ri-ang...ck-10cm-222708) to connect to the Kindle's USB. Hardware hack would be ideal, but I could not find internal USB for this (though I did not opened my device, just inspected motherboard's pics). So, this would ultimately require OTG kernel module as well as USB Audio modules, ALSA and so on. Guys from this thread (https://www.mobileread.com/forums/sho...d.php?t=206188) got some results in module compiling, so I'm asking their suggestions about proper toolchain. Any comments are welcomed

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07-11-2014, 01:23 PM	#2
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383043 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	This seems like rather a pointless exercise, if you'll forgive me for saying so. If you want a Kindle with sound, why not simply get one? Eg a Kindle Touch?

07-11-2014, 01:30 PM	#3
knc1 Going Viral Posts: 17,212 Karma: 18210809 Join Date: Feb 2012 Location: Central Texas Device: No K1, PW2, KV, KOA	so what is a K4 PW (planned) model?

07-11-2014, 03:47 PM	#4
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	I agree with HarryT. Especially since building and running USB OTG seems so big a hassle that almost nobody bothers, and then you need a solution for powering all this, which needs an external power source, too. So I would also suggest to either buy a Kindle with audio, or settle for a small SoC computer like the RasPi which already have audio and/or USB host mode.