Android phones and USB DACs
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DanBa

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Quote:
Well that is obviously not the case. .. android is limited to 16/44 
 
So, how do you explain that a Studio Master 24bit music file can be played on a stock Android-powered Samsung Galaxy S3 with the USB Audio Recorder PRO application thru a 24bit-capable ODAC?
http://www.linnrecords.com/recording-boots-met-my-face.aspx
 
 

 
 
Even Power Amp and neutron says android is limited to 16/44 and that the kernel isn't that good to begin with. This is clearly the case even on the DX100. The custom API ibasso created bypasses the crappy kernel on android thus you get the full benefit of the sabre DAC. 
 

 
Don’t trust anyone on the Internet!
The person who says you "The custom API iBasso created bypasses the crappy kernel on Android thus you get the full benefit of the Sabre DAC" is quite clueless about software.
How can an Application Program Interface bypass the kernel???
He should at least read and try to understand some Android basic concepts
http://androidcourse.in/mainmenu.php?contents=52
 
 

 
 
Quote:
 If you listen to music on Power Amp or Neutron audio even on 16/44 is really sounds mediocre in comparison to ibassos Stock player. This is not only due to the 16/44 limit but the inherent limitations in androids kernel impacting the sound in a negative way.
 

 
The iBasso player (at the application level) uses a custom iBasso audio driver (at the kernel level) specifically developed for the Sabre DAC.
PowerAmp or Neutron (at the application level) uses a standard Android audio driver (at the kernel level) developed for some common basic DAC (i.e. this driver doesn’t exploit all the features of the Sabre DAC).
 
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fcpchop88

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Quote:
"I tried the trial app [USB Audio Recorder PRO] on my Galaxy Nexus, does work!"
http://forum.xda-developers.com/showpost.php?p=35484769&postcount=52
 
That is awesome, certainly worth the buy then. Thanks DanBa!
 
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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
 
. AudioQuest DragonFly using USB Audio Recorder PRO:
http://www.head-fi.org/t/617241/audioquest-dragonfly-review-affordable-outstanding-tiny-dac-amp
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/1035#post_8959237
 
. FiiO E07K Andes (USB DAC/amp): to be confirmed
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/625054/samsung-galaxy-note-2/120#post_8960049
 
. 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
 
. Zoom H4 using USB Audio Recorder PRO (USB recorder):
http://en.wikipedia.org/wiki/Zoom_H4_Handy_Recorder
http://forum.xda-developers.com/showpost.php?p=35472432&postcount=23
 
 
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 the USB protocol, 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): to be confirmed
http://fiio.com.cn/product/index.aspx?MenuID=020302
http://www.head-fi.org/t/638910/new-fiio-e07k-andes-information-and-impressions/15#post_8924515
 
. FiiO E17 (USB DAC/amp) using USB Audio Recorder PRO:
http://www.headfonia.com/the-upgrade-fiio-e17-alpen/
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/1020#post_8958018
 
. 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
 
. iBasso DB2 using USB Audio Recorder PRO:
http://www.ibasso.com/en/products/show.asp?ID=71
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/1035#post_8959039
 
. 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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post-8967266
Post #1,069 of 9,413

DanBa

Headphoneus Supremus
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A list of stock Android-powered devices reportedly interworking with standard USB DAC:
 
stock Android device > digital USB audio out >> USB OTG cable >> standard USB DAC >> amp >> headphones
 
. Acer Iconia Tab A200 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/03/15/acer-iconia-tab-a200-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Acer Iconia Tab A500 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/04/26/acer-iconia-tab-a500-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Archos G9 (tablet):
http://www.anandtech.com/show/5802/the-archos-g9-tablet-reviews-fast-enough
http://forum.xda-developers.com/showthread.php?t=1539576
 
. Asus Transformer Pad TF300 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/04/22/asus-transformer-pad-tf300-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Asus Transformer Pad Infinity TF700 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/06/25/asus-transformer-pad-infinity-tf700-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Asus Transformer Prime using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/12/01/asus-eee-pad-transformer-prime-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Google Galaxy Nexus using USB Audio Recorder PRO (smartphone):
http://www.theverge.com/products/galaxy-nexus-gsm/2946
http://forum.xda-developers.com/showpost.php?p=35484769&postcount=52
 
. Google Nexus 7 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/06/28/nexus-7-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Huawei MediaPad using USB Audio Recorder PRO (tablet):
http://www.androidnz.net/2012/09/rapid-review-huawei-mediapadt-mobile.html
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Meizu MX Quad-Core using USB Audio Recorder PRO (smartphone):
http://www.xda-developers.com/android/meizu-mx-quad-core-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Motorola Xoom using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/02/23/motorola-xoom-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Samsung Galaxy Note II (smartphone):
http://www.engadget.com/2012/10/08/samsung-galaxy-note-ii-review/
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs
 
. Samsung Galaxy Note 10.1 (tablet):
http://phandroid.com/samsung-galaxy-note-10-1/
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/645#post_8814831
 
. Samsung Galaxy S III (smartphone):
http://www.theverge.com/2012/5/25/3042640/samsung-galaxy-s-iii-review
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs
 
. Samsung Galaxy Tab 2 7.0 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/04/11/samsung-galaxy-tab-2-7-0-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Samsung Galaxy Tab 2 10.1 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/05/15/samsung-galaxy-tab-2-10-1-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Sony Xperia S using USB Audio Recorder PRO (smartphone):
http://www.engadget.com/2012/03/08/sony-xperia-s-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
. Sony Xperia Tablet S using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/09/24/sony-xperia-tablet-s-review/
http://www.extreamsd.com/USBAudioRecorderPRO/
 
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So, how do you explain that a Studio Master 24bit music file can be played on a stock Android-powered Samsung Galaxy S3 with the USB Audio Recorder PRO application thru a 24bit-capable ODAC?
http://www.linnrecords.com/recording-boots-met-my-face.aspx







The iBasso player (at the application level) uses a custom iBasso audio driver (at the kernel level) specifically developed for the Sabre DAC.
PowerAmp or Neutron (at the application level) uses a standard Android audio driver (at the kernel level) developed for some common basic DAC (i.e. this driver doesn’t exploit all the features of the Sabre DAC).
I agree re, eveverything has to pass thru the kernel.
Also there are custom kernels out there such as siyah and boeffla kernel that has greatly enhanced the SQ and has provided hardware control of the built in Wolfson dac. I'll try to find that ibasso dap and do an a/b with my modded kernel s3.
I do agree with lee though that the stock Android kernels do not sound good.
 
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Quote:
 
So, how do you explain that a Studio Master 24bit music file can be played on a stock Android-powered Samsung Galaxy S3 with the USB Audio Recorder PRO application thru a 24bit-capable ODAC?
http://www.linnrecords.com/recording-boots-met-my-face.aspx
 
 
 
In order for it to do such thing it would have to bypass androids native kernel otherwise it is still limited to 16/44 and thus that means your music is being downsampled. In fact Neutron and Power Amp are capable of 24/192 playback the fact is android is not and that is why they are limited to 16/44. Do some research on it. ibasso has managed it by bypassing the kernel and using their own custom made driver directly to the Sabre DAC.
 
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A computing kernel is the basic component by which applications and the OS communicate with hardware. Everything has to go thru it as it provides the instruction code for everything.
There is no way to bypass it.
 
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Dacport LX is working with Note2 , using audio recorder pro (limited to 24bit only!!!), without any USB HUB!!!!!!
 
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All I want out of Android is to give me a UI, access some files (local or remote), and feed the bits out the USB port. That's what its good at. Get the bits and pass them through untouched. (I guess I might trust one or two select softwares to mess with the bits if they do it in floating point.) At that point I now have a choice of dozens of external DACs. (Though currently only a few phones with proper USB OTG support for external DACs). 
 
Less than 0.1% of music is natively more than 16/44. Up-sampling doesn't add any information to the music. And I believe this thread has reports of the USB OTG chain handling higher bitrates anyway. Maybe people will now start talking about jitter but that can be solved with a simple buffer and very slight time delay. 
 
I'm sorry to slam the iBasso but its a brick that runs an increasingly ageing version of Android. USB OTG and external DAC are the future. And while it requires two boxes their total weight and volume can be less than the iBasso. At what point will people admit its obsolete... 1 year... 2 years... Well who knows, people still swear by vinyl despite constant angular velocity meaning each track has less information than the one before it until the inner tracks have half the information. 
 
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Wishful thinking :). You'd have to use something along the lines of the DACport LX to even start to compare to the DX100 and you also have to take into account your amp section as well. So in the end, I highly doubt it. Pairing a good DAC and an amp will be bigger than the DX100 and most likely not sound better still :wink:. My DACport LX with the UHA6 MKII were on par with the DX100/T1 amp but still not better than that pairing. It took the Triad with the DACport LX to crush my DX100/T1 combo and even then I still find the combo still comparable in some aspects.
 
 
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Just out of curiosity, tonight I flashed CyanogenMOD 10.1 and then installed USB Audio Recorder Pro.
Why?  When CM10 doesn't work with DACs?
Well, I read that USB Audio Recorder Pro had special drivers for the kernel.  I was hoping it would work better.

 
So when I ran the app without the USB-OTG cable plugged in, it complained that the device needed to be connected first.
So I rebooted.  Connected the USB-OTG which is connected to my UCA202 DAC.
Then started the app, which advised it was now connected via USB.
Located an MP3 which the app complained about.
Then located a FLAC and clicked "play".  But nothing happened.  So either I don't know how to use the app, or it's not helping that I was on CM10, or something else is up.
 
Update... I was playing a bad FLAC file.  A proper working FLAC played just fine.
 
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I think you should ask the developer on his KVR topic:
http://www.kvraudio.com/forum/viewtopic.php?t=368011&sid=cb64f9eddc996551c9bfc92bc6bfa4b1
 
or invite him to come here.
 
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Quote:
I agree re, eveverything has to pass thru the kernel.
Also there are custom kernels out there such as siyah and boeffla kernel that has greatly enhanced the SQ and has provided hardware control of the built in Wolfson dac. I'll try to find that ibasso dap and do an a/b with my modded kernel s3.
I do agree with lee though that the stock Android kernels do not sound good.
 
 
I agree too.
There is no stock OS / kernel natively optimized for audio because audio is not considered by multi-purpose device manufacturers as a consumer target.
Luckily, there are third party developers who are improving the audio features like Supercurio or Siyah for Android, Amarra or Audirvana for MacOS
http://www.audiostream.com/content/media-player-qa-q6-it-more-beneficial-handle-upsampling-media-player-or-dac
http://www.amr-audio.co.uk/large_image/MAC%20OSX%20audio%20players%20&%20Integer%20Mode.pdf
 
The current stock Galaxy S3 could deliver a cleaner USB audio stream by just modifying some configuration parameters of the kernel scheduler and of the ALSA USB audio module.
http://soundcheck-audio.blogspot.co.uk/2011/11/touch-toolbox-30.html
http://www.audioasylum.com/cgi/m.pl?forum=pcaudio&n=101397
 
"An interesting example is the HRT music streamer II, it IS asynchronous USB, but it is still very sensitive to what happens in the computer. On the SAME COMPUTER I can make simple changes to OS scheduling parameters and get a huge difference in the sound. At one end of the scale its dull, lifeless, no depth at all, at the other end of the scale it is wonderfully alive, dynamic, huge depth etc. And all this by just changing a few numbers, NO change in hardware at all."
 
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Quote:
In fact Neutron and Power Amp are capable of 24/192 playback the fact is android is not and that is why they are limited to 16/44. Do some research on it. 
 
Yes, I did.
 
Please read the following posts:
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/975#post_8940230
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/1005#post_8950416
 
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