Android phones and USB DACs
post-8948844
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turokrocks

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Quote:
You don't have to switch on settings >accessories >audio output mode?
As I said, I just connect my Note2 (which is the same for the S3),  with a USB cable to the DAC, and start the Player (Neutron,playerpro...)
 
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post-8948973
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victorcc

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Remember that the USB cable has to be an OTG cable. A regular USB cable will not work and maybe that is the issue.
 
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post-8949163
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Gabor

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DanBa, you wrote:
"At the Linux Kernel Space, the ALSA Kernel Driver of the Galaxy S3 / Note2 is able to drive USB Audio Class 2 (UAC2) devices (i.e. USB DAC playing up to 32/384).
https://github.com/sgs3/GT-I9300_Kernel/blob/master/sound/usb/card.c#L246"
 
does it mean that in case I'd like to use my S3 in USB Audio Class 2 mode than I have to use modified kernel? If so, how can I do this modification? Is there an sw upgrade or kind of driver I can download? Sorry, I'm not an IT expert .... but very interrested in the issue :xf_eek:)  Thanks!
 
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post-8950416
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DanBa

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At the kernel level, the ALSA USB audio driver of the Galaxy S3 is able to drive USB Audio Class 1 (UAC1) devices (i.e. USB DAC playing up to 24/96)
https://github.com/sgs3/GT-I9300_Kernel/blob/master/sound/usb/card.c#L227
and USB Audio Class 2 (UAC2) devices (i.e. USB DAC playing up to 32/384).
https://github.com/sgs3/GT-I9300_Kernel/blob/master/sound/usb/card.c#L246
 
Thus, the stock kernel of the Galaxy S3 is likely able to drive USB DAC playing 24/96 or 24/192 high resolution music, if there is no hi-res limitation parameters set somewhere in the stock kernel.
 
 
The current hi-res limitations should be at the ROM level in the source code files mentioned in the post #990.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/975#post_8940230
 
For example, an Android developer should replace the following current instruction of the SDL_androidaudio.c
http://svn.gna.org/svn/warmux/trunk/build/lib/sdl/src/audio/android/SDL_androidaudio.c
 
if( ! (audioFormat->format == AUDIO_S8 || audioFormat->format == AUDIO_S16) )
 
by 
 
if( ! (audioFormat->format == AUDIO_S8 || audioFormat->format == AUDIO_S16 || audioFormat->format == AUDIO_S24) )
 
The Android developer should search the hi-res limitations like AUDIO_S16, PCM_16_BIT or 44100 in all the source code files of the stock ROM, add the hi-res capabilities and build a new custom ROM.
 
Android developers who are able to develop custom ROM can be found on the XDA forum:
http://forum.xda-developers.com/forumdisplay.php?f=1566
http://forum.xda-developers.com/forumdisplay.php?f=1685
 
 
Also, we have to find an Android player (Neutron Music Player, Poweramp, …) which is able to play hi-res music and output hi-res PCM stream.
 
 
By the way, some free hi-res music can be downloaded at the following link:
http://christmas.linn.co.uk/
 
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post-8950955
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DanBa

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A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy Note II:
 
stock Galaxy Note II > digital USB audio out >> USB OTG cable (micro-A plug inserted in the Note II) >> standard USB DAC >> amp >> headphones
 
. Apex Glacier (USB DAC/amp):
http://www.head-fi.org/t/632019/apex-glacier-amp-dac-review-and-appreciation-thread
http://www.head-fi.org/t/632019/apex-glacier-amp-dac-review-and-appreciation-thread/165#post_8924724
 
. Audio-gd NFB-16  (USB DAC/amp):
http://www.audio-gd.com/Pro/Headphoneamp/NFB16/NFB16EN.htm
http://www.head-fi.org/t/625054/samsung-galaxy-note-2/120#post_8943120
 
. FiiO E07K Andes (USB DAC/amp):
http://www.headphiles.org/index.php?t=msg&goto=253249&
http://www.head-fi.org/t/638910/new-fiio-e07k-andes-information-and-impressions/15#post_8924515
 
. GoVibe Magnum (USB DAC/amp):
http://www.head-fi.org/t/324577/review-govibe-magnum-usb-dac-amp
http://www.head-fi.org/t/633201/confirmed-list-of-usb-dacs-for-the-galaxy-s3-international-us-or-note-2#post_8809248
 
. GoVibe Martini-U (USB DAC/amp):
http://jaben-bandung.com/index.php?route=product/product&product_id=196
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/990#post_8942287
 
. GoVibe Vulcan (USB DAC/amp):
http://www.head-fi.org/t/386127/go-vibe-vulcan
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/960#post_8929084
 
. HRT HeadStreamer Mobile (USB DAC/amp):
http://highresolutiontechnologies.com/headstreamer-mobile
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/power-galaxy-note-2-while-using-usb-dac-how-please-14029/
 
. HeadAmp Pico (USB DAC/amp): (via USB 2.0 hub)
http://www.headfonia.com/headamp-pico/
http://www.head-fi.org/t/625054/samsung-galaxy-note-2/30#post_8774905
 
. Headstage Lyrix Pro USB total (USB DAC/amp):
http://www.headphonia.com/Amps/Headstage-Lyrix-Pro-USB-total::10071.html
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/795#post_8854850
 
. iBasso D-Zero (USB DAC/amp):
http://www.headfonia.com/fiio-e7-meet-your-rival-the-ibasso-d-zero/
http://www.head-fi.org/t/625054/samsung-galaxy-note-2/120#post_8943120
 
. iBasso D12 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=63
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/405#post_8750862
 
. Leckerton UHA-6S MKII (USB DAC/amp):
http://www.innerfidelity.com/content/leckerton-uha-6s-mkii-portable-headphone-amplifier
http://www.head-fi.org/t/625054/samsung-galaxy-note-2/30#post_8777791
 
. MyST 1866 PortaDAC (USB DAC/amp):
http://www.musicaacoustics.com/wp/amplifiers/myst-1866/
http://player.ru/showthread.php?t=74459&page=34&p=1084707&viewfull=1#post1084707
 
. Objective DAC (ODAC):
http://epiphany-acoustics.co.uk/our-products/e-dac-24bit-miniature-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=46
http://www.headnhifi.com/index.php/shop/objective/odac
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/435#post_8758515
 
. ODAC+O2 (USB DAC/amp):
http://epiphany-acoustics.co.uk/our-products/ehp-o2d-miniature-desktop-headphone-amplifier-with-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=48
http://www.headnhifi.com/index.php/shop/objective/o2120527192048
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/435#post_8758515
 
. RSA Intruder (USB DAC/amp):
http://www.innerfidelity.com/content/canjam-rmaf-2012-ray-samuels-audio-intruder-balanced-portable-headphone-amp-and-dac
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/660#post_8819856
 
. RSA Predator (USB DAC/amp):
http://www.6moons.com/audioreviews/predator/predator_2.html
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/795#post_8857548
 
. Sony PHA-1 (USB DAC/amp):
http://www.touchmyapps.com/2012/10/09/sony-pha-1-idevice-dac-and-headphone-amp-in-review/
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/465#post_8769593
 
. VentureCraft Go-Dap X (USB DAC/amp):
http://www.head-fi.org/t/609906/new-venturecraft-go-dap-x-for-both-idevices-and-pcs
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/465#post_8769593
 
 
So far, like the quad-core Exynos powered Galaxy S III, the new quad-core Exynos powered Samsung Galaxy Note II can work with the FiiO E7, the iBasso D12, Leckerton UHA-6S MKII, the ODAC, ... ; has some issue with the HeadAmp Pico; and doesn’t work with the FiiO E17.
 
So, in regard to standard USB audio, the behaviour of the Galaxy Note II is likely identical to the behaviour of the Galaxy S III.
 
 
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy S III:
 
stock Samsung Galaxy S III > digital USB audio out >> USB OTG cable (micro-A plug inserted in the S III) >> standard USB DAC >> amp >> headphones
 
. AMB Gamma 1:
http://www.amb.org/audio/gamma1/
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/780#post_8750043
 
. AMB Gamma 2:
http://www.amb.org/audio/gamma2/
http://forum.xda-developers.com/showpost.php?p=27247705&postcount=279
 
. Apex Glacier (USB DAC/amp):
http://www.ttvjaudio.com/Apex_High_Fi_Audio_Glacier_portable_headphone_amp_p/aaa0000010.htm
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/825#post_8776449
 
. Asus Xonar U3 (USB DAC/amp):
http://www.asus.com/Multimedia/Audio_Cards/Xonar_U3/
http://mybroadband.co.za/vb/showthread.php/429589-Samsung-Galaxy-S3?s=1a313fae4795a9a7493a6ce0f677ca8e&p=8551119&viewfull=1#post8551119
 
. Atoll DAC 100:
http://www.6moons.com/audioreviews/atoll2/atoll.html
http://forum.xda-developers.com/showpost.php?p=35266076&postcount=17
 
. Audio-gd Sparrow Version A  (USB DAC/amp):
http://www.audio-gd.com/Pro/Headphoneamp/Sparrow/SparrowEN.htm
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/915#post_8907415
 
. Behringer UCA202 (USB DAC/amp):
http://www.behringer.com/EN/Products/UCA202.aspx
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/240#post_8654226
 
. Behringer UCA222 (USB DAC/amp):
http://www.behringer.com/en/Products/UCA222.aspx
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/usb-audio-enabled-android-powered-samsung-galaxy-s-iii-12338/#post171651
 
. Beresford Caiman:
http://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/hi-fi-accessories/beresford-caiman-673787/review
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/usb-audio-enabled-android-powered-samsung-galaxy-s-iii-12338/#post171651
 
. C-Media chipset-based sound card Dynamode 7 channel USB 2.0 (USB DAC/amp):
http://www.chinacomputerparts.com/d-p1140199199635616900-cables/
http://forum.xda-developers.com/showpost.php?p=27604946&postcount=449
 
. Cakewalk Sonar SPS 25:
https://www.cakewalk.com/support/kb/reader.aspx/2007013101
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/usb-audio-enabled-android-powered-samsung-galaxy-s-iii-12338/#post171651
 
. Cambridge Audio DacMagic:
http://www.headfonia.com/cambridge-dacmagic-review/
http://www.head-fi.org/t/631855/galaxy-s3-and-ca-dacmagic-plus#post_8899779
 
. Corsair HS1 Gaming headset (USB DAC/amp/headphones):
http://www.anandtech.com/show/3989/corsair-hs1-gaming-headset
http://forum.xda-developers.com/showthread.php?p=27238117#post27238117
 
. Dared MP 5 or ALO JV5 (USB DAC/amp):
http://www.positive-feedback.com/Issue24/dared_mp5.htm
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/990#post_8948190
 
. FiiO E7 (USB DAC/amp):
http://www.headfonia.com/fiio-e7-portable-dac/
http://www.androidnz.net/2012/07/galaxy-s-iii-real-user-review-part-2.html
 
. FiiO E07K Andes (USB DAC/amp):
http://fiio.com.cn/products/index.aspx?ID=100000012071912&MenuID=105026002
http://www.head-fi.org/t/638910/new-fiio-e07k-andes-information-and-impressions/15#post_8924515
 
. Furutech ADL Cruise (USB DAC/amp):
http://www.furutech.com/a2008/product2.asp?prodNo=399
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/585#post_8567838
 
. GoVibe DAC:
http://jaben.net/forums/index.php?topic=2824.0
http://forum.lowyat.net/index.php?showtopic=2440879&st=500&p=53317360&#entry53317360
 
. GoVibe Mini USB DAC:
http://www.jaben.com.au/collections/go-vibe/products/govibe-minidac
http://www.head-fi.org/t/614111/finally-digital-out-for-galaxy-siii/15#post_8525675
 
. GoVibe Petite (USB DAC/amp):
http://www.head-fi.org/t/290711/govibe-petite-dac-amp-appreciation-thread-pics-little-update
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs-how-to-increase-the-issues-priority-with-google/195#post_8552452
 
. HRT HeadStreamer (USB DAC/amp):
http://www.headfonia.com/hrt-headstreamer-review/
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/750#post_8677483
 
. HRT Music Streamer II:
http://highresolutiontechnologies.com/music-streamer-ii
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/465#post_8534856
 
. HeadAmp Pico (USB DAC/amp): (Exynos-based S III connected to Pico via USB 2.0 hub)
http://www.headamp.com/pico/pico_dac_amp/index.htm
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/480#post_8539705
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/750#post_8688938
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/720#post_8638606
 
. HeadRoom Total BitHead (USB DAC/amp):
http://www.headphone.com/learning-center/bithead-faq.php
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs-how-to-increase-the-issues-priority-with-google/135#post_8527516
 
. HeadStage USB DAC cable:
http://www.inearmatters.net/2010/04/short-review-headstage-usb-dac-cable.html
http://www.headphiles.org/index.php/topic,4452.msg241979.html#msg241979
 
. HiFiMan Express HM-101:
http://www.head-fi.org/t/571330/hifiman-express-brand-and-hm-101-portable-usb-dac
http://forum.xda-developers.com/showpost.php?p=27284184&postcount=291
 
. iBasso D-Zero (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=73
http://neutronmp.com/forum/viewtopic.php?f=4&t=314&start=20#p1636
 
. iBasso D2 Boa (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=30
http://www.head-fi.org/t/552014/pictures-of-your-portable-rig-part-xv/5535#post_8509186
 
. iBasso D2+ Boa (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=42
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/usb-audio-enabled-android-powered-samsung-galaxy-s-iii-12338/#post171651
 
. iBasso D5 (USB DAC/amp):
http://www.head-fi.org/t/556490/ibasso-d5-hj-yet-another-usb-dac-amp
http://www.head-fi.org/t/614111/finally-digital-out-for-galaxy-siii#post_8462693
 
. iBasso D10 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=39
http://www.head-fi.org/t/628374/samsung-galaxy-s3-to-dac-usb-micro-b-male-to-mini-b-male#post_8735134
 
. iBasso D12 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=63
http://forum.xda-developers.com/showpost.php?p=29069294&postcount=924
 
. iQube v2 (USB DAC/amp):
http://www.i-qube.nl/index.php?id=24
http://forum.xda-developers.com/showpost.php?s=6fe26080d10769d0f785157c83e74465&p=31207282&postcount=1268
 
. JH Audio JH-3A (USB DSP/DAC/amp/JH16 CIEM):
http://www.jhaudio.com/product/jh-3a-dsp-amp-jh16-pro-custom-ear-monitor
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/585#post_8799910
 
. Jabra GN 5035 (USB headset):
http://reviews.cnet.com/headsets/jabra-gn5035-headset/4505-13831_7-32462996.html
http://forum.xda-developers.com/showpost.php?p=33203364&postcount=1368
 
. KingRex UD-01:
http://www.kingrex.co.uk/dac.html
https://www.facebook.com/headfonia/posts/352787358128700
 
. Leckerton UHA-4 (USB DAC/amp):
http://www.leckertonaudio.com/products/uha-4/
http://www.head-fi.org/t/536982/leckerton-audio-slimline-uha-4/1020#post_8773152
 
. Leckerton UHA-6S MKII (USB DAC/amp):
http://www.leckertonaudio.com/products/uha-6s-mkii/
http://www.head-fi.org/t/602493/new-leckerton-uha-6s-mkii-portable-headphone-amplifier-announced-update-user-impressions-added-july-20th-2012/435#post_8698006
 
. M-Audio Duo USB Audio Interface:
http://www.soundonsound.com/sos/oct02/articles/maudio.asp
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/540#post_8788814
 
. Matrix Mini-i (USB DAC/amp):
http://www.headfonia.com/matrix-mini-i-balanced-dac/
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/465#post_8768166
 
. Meier Audio Cantate.2 (USB DAC/amp):
http://www.head-fi.org/products/meier-audio-corda-cantate-2
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/660#post_8820899
 
. Microsoft Philips Digital Sound System 80 (USB DAC/amp/speakers):
http://en.wikipedia.org/wiki/Digital_Sound_System_80
http://forum.xda-developers.com/showthread.php?t=1703218
 
[size=10pt]. Microsoft LifeChat LX-3000 (USB headset):[/size]
http://www.microsoft.com/hardware/en-au/p/lifechat-lx-3000/JUG-00003
http://forum.xda-developers.com/showpost.php?p=32899845&postcount=1355
 
. MyST 1866 PortaDAC (USB DAC/amp):
http://www.head-fi.org/t/616889/myst-1866-bluetooth-optical-coaxial-usb-dac-headphone-amp-impressions-thread
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/795#post_8852573
 
. NuForce Icon HDP (USB DAC/amp):
http://www.nuforce.com/hp/products/iconhdp/index.php
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/585#post_8567838
 
. NuForce Icon Mobile (USB DAC/amp):
http://www.6moons.com/audioreviews/nuforce10/mobile.html
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/435#post_8759826
 
. NuForce Icon uDAC-2 (USB DAC/amp):
http://www.digitaltrends.com/headphone-amplifier-reviews/nuforce-icon-udac-2-review/
http://forum.xda-developers.com/showpost.php?p=35266076&postcount=17
 
. Objective DAC (ODAC):
http://epiphany-acoustics.co.uk/our-products/e-dac-24bit-miniature-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=46
http://www.headnhifi.com/index.php/shop/objective/odac
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/315#post_8707637
 
. ODAC+O2 (USB DAC/amp):
http://epiphany-acoustics.co.uk/our-products/ehp-o2d-miniature-desktop-headphone-amplifier-with-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=48
http://www.headnhifi.com/index.php/shop/objective/o2120527192048
http://www.facebook.com/permalink.php?story_fbid=410941392302962&id=164588276945555
 
. Ordnance .25 (USB DAC/amp):
http://jaben.net/forums/index.php?topic=9984.0
http://www.head-fi.org/t/614111/finally-digital-out-for-galaxy-siii#post_8462693
 
. RSA Intruder (USB DAC/amp):
http://www.raysamuelsaudio.com/products/intruder
http://www.head-fi.org/t/627080/new-balanced-portable-amp-from-rsa-w-dac/30#post_8781567
 
. RSA Predator (USB DAC/amp):
http://www.raysamuelsaudio.com/products/predator
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/150#post_8538933
 
. Stoner Acoustics UD100:
http://stoneracoustics.blogspot.fr/
http://forum.lowyat.net/index.php?showtopic=2452730&st=160&p=54596977&#entry54596977
 
. Syba SD-AUD20101:
http://www.sybausa.com/productInfo.php?iid=1191
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/375#post_8736082
 
. Topping D1 Mark 2 (USB DAC/amp):
http://www.head-fi.org/t/636606/topping-d1-mark-2-review
http://forum.xda-developers.com/showpost.php?p=28673076&postcount=871
 
. Topping D2 (USB DAC/amp):
http://www.mightybigword.com/tnt/2012/03/topping-d2-dac-review/
http://forum.xda-developers.com/showpost.php?p=32920194&postcount=1357
 
. Topping TP30 (USB DAC/amp):
http://news.cnet.com/8300-5_3-0.html?keyword=Topping+TP-30
http://www.androidnz.net/2012/05/samsung-galaxy-s-iii-usb-audio.html
 
. VentureCraft Go-Dap X (USB DAC/amp):
http://venturecraft.jp/gadget_en/gdx.php
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/315#post_8708233
 
. xDuoo XP-1 (USB DAC/amp):
http://www.xduoo.com/xduoo/ProductShow.asp?ID=47
http://www.erji.net/read.php?tid=1320392&fpage=0&toread=&page=1
 
 
Bold: new addition to the list
 
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tim3320070

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I don't understand much of what you post (technically) but this continually updated list of compatible devices is very helpful and appreciated.
 
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bmichels

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Does rooting makes it really faster ?

Does this rooting bring other advantages than just responsivity ( like better sound, ?? .... ) ?
 
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NZtechfreak

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Quote:
Does rooting makes it really faster ?
Does this rooting bring other advantages than just responsivity ( like better sound, ?? .... ) ?
 
Lots of advantages: custom ROMs which typically offer better performance and battery life, ability to make the Play Store think you're on a US carrier for US-only apps and sales, extra features like audio tweaks (for example large boosts in volume), call recording, app backup that includes data like save games for restoration to new devices, ability to block ads in apps and the browser, use custom kernels to overclock/undervolt, ability to use PS3 controllers wirelessly with most games, ability to move app data to the external SD card, camera enhancements like better video recording bitrate and audio quality, better battery stat collection to identify wakelocks and other problems, ability to use wireless tethering in the US when the carriers stock firmware doesn't allow it, ability to  install stock Android to the device, get new OS updates more quickly, do full system backups and restores. Plenty more besides.
 
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bmichels

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Tanks for the long answer
 
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First.. thanks to DanBa for compiling and maintaining a comprehensive (growing) list of devices that work with the S3's USB audio.  A noble & worthwhile effort!
 
Next, a few questions..
 
I've tried searching the thread but couldn't find this.. has there been a list of what Galaxy S3 ROMs/kernels support USB audio out?  I'm interested in the US-based Galaxy S3 (SCH-i535) since that's what I have.
 
My (Verizon) S3 is on the stock firmware (rooted) and USB audio works great with the Leckerton UHA-6S MKII.  Though I'm able to still control the volume on my phone while the UHA is connected (via an OTG cable).. is this what everyone else is experiencing?
 
My ODAC/O2 doesn't seem to work with the S3.  The order in which I'm linking the ODAC/O2 to the S2 is as follows:  Connect OTG cable to S3, then connect the ODAC USB cable to OTG cable.  The notification/error I'm getting is "High powered USB device connected. Cannot access this device. Connect..." (the rest of the text is cut off by the screen).  I've tried multiple OTG cables I have (same result) and changed the order in which I connect.. same result, regardless.
 
Now, I had the ODAC/O2 working at some point, I think.. perhaps before I rooted the phone (?).. but I doubt that would be the culprit.  Has anyone else with a US/Verizon-based S3 had this issue with the ODAC?
 
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What portable dac/amp is the best right now for 300 usd or less, that is sure to work with the international sgs3?
 
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FlySweep

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What portable dac/amp is the best right now for 300 usd or less, that is sure to work with the international sgs3?
 In my opinion?  The Leckerton UHA-6S MKII.  It's one of the best portable dac/amps.. period... regardless of transport.
 
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Quote:
My (Verizon) S3 is on the stock firmware (rooted) and USB audio works great with the Leckerton UHA-6S MKII.  Though I'm able to still control the volume on my phone while the UHA is connected (via an OTG cable).. is this what everyone else is experiencing?
 
I think that's because the volume control is in the digital stage, not simply a digital volume control (like on integrated amps or headphone amps that don't have knobs on them; or Meier amps where the knobs are retained for feel and speed of twisting instead of mashing buttons). Think of that as similar to having volume control on Windows then you plug the laptop straight into a power amp (no preamp). I was at a meet recently and when I got home I thought my system sounded weird; checked and saw people used the FLACPlayer volume bar instead of my amp's veolume knob.
 
BTW my S3 sounds weird on my Cantate (which works just fine with computers and iPads) at any volume level but it works fine with the D-Zero.
 
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DanBa

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Quote:
I've tried searching the thread but couldn't find this.. has there been a list of what Galaxy S3 ROMs/kernels support USB audio out?  I'm interested in the US-based Galaxy S3 (SCH-i535) since that's what I have.
 
 
My list is related to stock Galaxy S3, i.e. stock ROM and stock kernel.
 
As far as I understand, Android developers customize their ROM or kernel from stock software; and usually they won’t remove features, they rather add or improve features.
 
I was quite surprised learning that the CM10 developers have removed the USB audio support.
 
"Since flashing KERNEL-CM-10-20120801 | Audiopatch for 10-20120801 & Camerapatch for CM10-20120801 yesterday, the USB Audio driver appears to have vanished (was working after flashing just the 10-20120801-EXPERIMENTAL-i9300-CODEWORKX build)
I've flashed today's build with a full wipe, and its the same story, the X360 controller and USB HDD still work fine, but no USB Audio, My guess is that it was removed from the kernel?"
http://forum.xda-developers.com/showthread.php?p=29691769&highlight=usb+audio#post29691769
 
 
My ODAC/O2 doesn't seem to work with the S3.  The order in which I'm linking the ODAC/O2 to the S2 is as follows:  Connect OTG cable to S3, then connect the ODAC USB cable to OTG cable.  The notification/error I'm getting is "High powered USB device connected. Cannot access this device. Connect..." (the rest of the text is cut off by the screen).  I've tried multiple OTG cables I have (same result) and changed the order in which I connect.. same result, regardless.
 
 
 
I have no interworking issue with my standalone ODAC from Epiphany Acoustics and my international Galaxy S3.
 
T-Mobile Galaxy S3 can work with ODAC/O2 combo.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/915#post_8900545
 
According to the message error, your ODAC/O2 combo (?) requires too much power, and an external battery or a battery-powered USB hub should fix the issue.
I guess you have tested your USB OTG cable with a USB mouse.
 
And a clean 5V should improve the sound quality of the ODAC.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/165#post_8540151
 
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"Xtream Software Development has released their app USB Audio Recorder PRO to the Play Store. It allows recording and playback using many standards compliant USB audio devices, a first for Android. By writing custom USB audio code, pro audio is now finally possible on millions of Android devices."
http://www.kvraudio.com/forum/viewtopic.php?t=368011&sid=a4db8160b366161dbd5b8ee0e4b53a32
http://www.extreamsd.com/USBAudioRecorderPRO/
"The Android app USB Audio Recorder PRO allows you to record and playback audio using class-compliant USB audio devices on your Android phone or tablet! eXtream Software Development has written a custom USB audio driver from scratch because Android does not support USB audio (even Android 4.1 contrary to popular believe!).
Supported are mono and stereo streams, 16-bit and 24-bit and any sample rate (up to 192kHz) that the device provides..."
 
It's very perfectible for the time being.
 
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