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Request to Google to enable USB audio on Android smartphones/tablets

For iOS (iPhone, iPad & iPod), Android, Windows Phone, etc. App and Hardware talk

Moderator: Moderators (Main)

DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Fri Mar 09, 2012 12:23 pm Request to Google to enable USB audio on Android smartphones/tablets

If you want the USB audio enabled on any Android 4.0 device via official firmware/kernel, please vote (aka star) here:
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

Vote: Click on the star, which appears after signing in


According to Android 3.1 specifications, Android devices could support the USB audio feature, i.e. Android devices and USB_CLASS_AUDIO compliant devices like standard USB DAC could interoperate:
http://developer.android.com/guide/topics/usb/index.html
http://developer.android.com/reference/android/hardware/usb/UsbConstants.html

USB_CLASS_AUDIO compliant devices like standard USB DAC don't need a special USB device driver. Instead, they use an operating system standard driver.
The Android standard USB audio driver is the generic USB audio driver for ALSA (Advanced Linux Sound Architecture).
And the latest Android 4.0 includes "card.c", the USB audio driver for ALSA which should be compliant with USB audio class 2 devices allowing for 24 bits / 192 kHz.
https://bitbucket.org/paulobrien/android_kernel_galaxynexus/src/bc4f9b72a51d/sound/usb/card.c

Image

Android relies on Linux version 2.6 for core system services such as driver model. The Linux kernel also acts as an abstraction layer between the hardware and the rest of the software stack.
Thus Android handles all the things that Linux is really good at such as a vast array of device drivers, which take the pain out of interfacing to peripheral hardware.


The official Android with USB audio enabled should be used by most people, who don't want to mod their device.

Android kernel modders have already enabled the USB audio feature on
. Google Nexus One smartphone
http://sven.killig.de/android/N1/2.2/usb_host/#x11
. HTC Desire smartphone
http://forum.xda-developers.com/showpost.php?p=7682621&postcount=46
. HTC One X smartphone
http://forum.xda-developers.com/showpos ... ostcount=9
. Nook Color tablet
http://forum.xda-developers.com/showthread.php?t=1459892
. Archos G9 tablet
http://update.archos.com/9/gen9/changes_firmware_archos_android_gen9it4.htm
. Ainol Novo 7 tablet
http://www.slatedroid.com/topic/29289-usb-audio-cards-support-drivers-and-libs/




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 ... 00-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Acer Iconia Tab A500 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/04/26/acer ... 00-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Archos G9 (tablet):
http://www.anandtech.com/show/5802/the- ... ast-enough
http://forum.xda-developers.com/showthr ... ?t=1539576

. Asus Transformer Pad TF300 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/04/22/asus ... 00-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 ... 00-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Asus Transformer Prime using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/12/01/asus ... me-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/showpos ... stcount=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/

. Google Nexus 10 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/11/02/nexus-10-review/
http://www.head-fi.org/t/595071/android ... st_8973836

. HTC Butterfly / HTC Droid DNA / HTC J Butterfly (smartphone):
http://www.htc.com/www/smartphones/htc-butterfly/
http://www.head-fi.org/t/595071/android ... st_9082851

. Huawei Ascend D1 Quad XL using USB Audio Recorder PRO (smartphone):
http://www.engadget.com/2012/10/20/huaw ... xl-review/
http://www.head-fi.org/t/628254/fiio-e1 ... st_8988466

. Huawei MediaPad using USB Audio Recorder PRO (tablet):
http://www.androidnz.net/2012/09/rapid- ... obile.html
http://www.extreamsd.com/USBAudioRecorderPRO/

. Meizu MX Quad-Core using USB Audio Recorder PRO (smartphone):
http://www.xda-developers.com/android/m ... re-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Motorola Razr Maxx HD using USB Audio Recorder PRO (smartphone):
http://www.engadget.com/2012/10/19/droi ... hd-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Motorola Xoom using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/02/23/moto ... om-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Samsung Galaxy Camera EK-G100 using USB Audio Recorder PRO (camera):
http://www.digitaltrends.com/digital-ca ... 00-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Samsung Galaxy Note II (smartphone):
http://www.engadget.com/2012/10/08/sams ... ii-review/
http://www.head-fi.org/t/595071/android ... d-usb-dacs

. Samsung Galaxy Note 10.1 (tablet):
http://phandroid.com/samsung-galaxy-note-10-1/
http://www.head-fi.org/t/595071/android ... st_8814831

. Samsung Galaxy R using USB Audio Recorder PRO (smartphone):
http://www.engadget.com/2011/08/10/sams ... sia-nobod/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Samsung Galaxy S III (smartphone):
http://www.theverge.com/2012/5/25/30426 ... iii-review
http://www.head-fi.org/t/595071/android ... d-usb-dacs

. Samsung Galaxy Tab 2 7.0 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/04/11/sams ... -0-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Samsung Galaxy Tab 7.7 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/02/07/sams ... l-edition/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Samsung Galaxy Tab 10.1 using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/05/15/sams ... -1-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Sony Xperia S using USB Audio Recorder PRO (smartphone):
http://www.engadget.com/2012/03/08/sony ... -s-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Sony Xperia Sola using USB Audio Recorder PRO (smartphone):
http://www.androidcentral.com/device/sony-xperia-sola
http://www.extreamsd.com/USBAudioRecorderPRO/

. Sony Xperia Tablet S using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2012/09/24/sony ... -s-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Toshiba Thrive using USB Audio Recorder PRO (tablet):
http://www.engadget.com/2011/07/22/tosh ... ve-review/
http://www.extreamsd.com/USBAudioRecorderPRO/

. Wiko Cink King using USB Audio Recorder PRO (smartphone):
http://www.wikomobile.com/telephone-por ... k-king.php
http://www.extreamsd.com/USBAudioRecorderPRO/


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 into the Note II) >> standard USB DAC >> amp >> headphones

. Apex Glacier (USB DAC/amp):
http://www.head-fi.org/t/632019/apex-gl ... ion-thread
http://www.head-fi.org/t/632019/apex-gl ... st_8924724

. Asus Xonar U3 (USB DAC/amp):
http://www.overclockersclub.com/reviews/asus_xonar_u3/
http://www.head-fi.org/t/595071/android ... st_8997468

. Audio-gd NFB-16 (USB DAC/amp):
http://www.audio-gd.com/Pro/Headphoneam ... FB16EN.htm
http://www.head-fi.org/t/625054/samsung ... st_8943120

. AudioQuest DragonFly using USB Audio Recorder PRO:
http://www.head-fi.org/t/617241/audioqu ... ny-dac-amp
http://www.head-fi.org/t/595071/android ... st_8959237

. CEntrance DACport LX using USB Audio Recorder PRO:
http://www.headfonia.com/cheaper-better ... acport-lx/
http://www.head-fi.org/t/595071/android ... st_8968468

. ELE EL-D01:
http://www.cnfeature.com/goods.php?id=1299
http://www.head-fi.org/t/643883/portabl ... st_9012249

. 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-fii ... st_8924515
http://www.head-fi.org/t/628254/fiio-e1 ... st_8973799

. Focal XS 2.1 (USB speakers):
http://reviews.cnet.com/speakers-speake ... 18064.html
http://www.homecinema-fr.com/forum/mult ... p177362999

. GoVibe Magnum (USB DAC/amp):
http://www.head-fi.org/t/324577/review- ... sb-dac-amp
http://www.head-fi.org/t/633201/confirm ... st_8809248

. GoVibe Martini-U (USB DAC/amp):
http://jaben-bandung.com/index.php?rout ... uct_id=196
http://www.head-fi.org/t/595071/android ... st_8942287

. GoVibe Vulcan (USB DAC/amp):
http://www.head-fi.org/t/386127/go-vibe-vulcan
http://www.head-fi.org/t/595071/android ... st_8929084

. HRT HeadStreamer Mobile (USB DAC/amp):
http://highresolutiontechnologies.com/h ... mer-mobile
http://www.computeraudiophile.com/f6-da ... ase-14029/

. HeadAmp Pico USB DAC/Amp: bug fixed by HeadAmp
http://www.headfonia.com/headamp-pico/
http://www.head-fi.org/t/595071/android ... st_9037872

. HeadAmp Pico Upsampling USB DAC:
http://www.head-fi.org/t/413230/headamp ... ntro-price
http://www.head-fi.org/t/595071/android ... st_9037872

. Headstage Lyrix Pro USB total (USB DAC/amp):
http://www.headphonia.com/Amps/Headstag ... 10071.html
http://www.head-fi.org/t/595071/android ... st_8854850

. iBasso D-Zero (USB DAC/amp):
http://www.headfonia.com/fiio-e7-meet-y ... so-d-zero/
http://www.head-fi.org/t/625054/samsung ... st_8943120

. iBasso D12 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=63
http://www.head-fi.org/t/595071/android ... st_8750862

. Leckerton UHA-6S MKII (USB DAC/amp):
http://www.innerfidelity.com/content/le ... -amplifier
http://www.head-fi.org/t/625054/samsung ... st_8777791

. MyST 1866 PortaDAC (USB DAC/amp):
http://www.musicaacoustics.com/wp/amplifiers/myst-1866/
http://player.ru/showthread.php?t=74459 ... ost1084707

. Objective DAC (ODAC):
http://epiphany-acoustics.co.uk/our-pro ... e-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 ... st_8758515

. ODAC+O2 (USB DAC/amp):
http://epiphany-acoustics.co.uk/our-pro ... h-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=48
http://www.headnhifi.com/index.php/shop ... 0527192048
http://www.head-fi.org/t/595071/android ... st_8758515

. RSA Intruder (USB DAC/amp):
http://www.innerfidelity.com/content/ca ... mp-and-dac
http://www.head-fi.org/t/595071/android ... st_8819856

. RSA Predator (USB DAC/amp):
http://www.6moons.com/audioreviews/pred ... tor_2.html
http://www.head-fi.org/t/625054/samsung ... st_8960049

. Sony PHA-1 (USB DAC/amp):
http://www.touchmyapps.com/2012/10/09/s ... in-review/
http://www.head-fi.org/t/595071/android ... st_8769593

. Stoner Acoustics UD100:
http://www.head-fi.org/t/626632/tiny-da ... 00-vs-odac
http://forum.lowyat.net/index.php?showt ... ry56352256

. VentureCraft Go-Dap X (USB DAC/amp): USB cable provided by VentureCraft
http://www.head-fi.org/t/609906/new-ven ... es-and-pcs
http://www.head-fi.org/t/595071/android ... st_8769593

. xDuoo XP-1 (USB DAC/amp):
http://www.jaben.com.hk/ProductView.asp ... SortID=358
http://www.head-fi.org/t/642504/xduoo-n ... -amp-units

. Zoom H4 using USB Audio Recorder PRO (USB recorder):
http://en.wikipedia.org/wiki/Zoom_H4_Handy_Recorder
http://forum.xda-developers.com/showpos ... stcount=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, … ; had some issue with the HeadAmp Pico (bug fixed by HeadAmp); and doesn't work with the FiiO E17 using the stock USB audio driver.

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 into 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 ... st_8750043

. AMB Gamma 2:
http://www.amb.org/audio/gamma2/
http://forum.xda-developers.com/showpos ... tcount=279

. Apex Glacier (USB DAC/amp):
http://www.ttvjaudio.com/Apex_High_Fi_A ... 000010.htm
http://www.head-fi.org/t/608535/wolfson ... st_8776449

. Asus Xonar U3 (USB DAC/amp):
http://www.asus.com/Multimedia/Audio_Cards/Xonar_U3/
http://mybroadband.co.za/vb/showthread. ... ost8551119

. Atoll DAC 100:
http://www.6moons.com/audioreviews/atoll2/atoll.html
http://forum.xda-developers.com/showpos ... stcount=17

. Audio-gd Sparrow Version A (USB DAC/amp):
http://www.audio-gd.com/Pro/Headphoneam ... rrowEN.htm
http://www.head-fi.org/t/595071/android ... st_8907415

. Behringer UCA202 (USB DAC/amp):
http://www.behringer.com/EN/Products/UCA202.aspx
http://www.head-fi.org/t/595071/android ... st_8654226

. Behringer UCA222 (USB DAC/amp):
http://www.behringer.com/en/Products/UCA222.aspx
http://www.computeraudiophile.com/f6-da ... post171651

. Beresford Caiman:
http://www.techradar.com/reviews/audio- ... 787/review
http://www.computeraudiophile.com/f6-da ... post171651

. C-Media chipset-based sound card Dynamode 7 channel USB 2.0 (USB DAC/amp):
http://soundplayer.systempebisnisonline ... ound-card/
http://forum.xda-developers.com/showpos ... tcount=449

. Cakewalk Sonar SPS 25:
https://www.cakewalk.com/support/kb/rea ... 2007013101
http://www.computeraudiophile.com/f6-da ... post171651

. Cambridge Audio DacMagic:
http://www.headfonia.com/cambridge-dacmagic-review/
http://www.head-fi.org/t/631855/galaxy- ... st_8899779

. CEntrance DacMini using USB Audio Recorder PRO (USB DAC/amp):
http://centrance.com/products/dacmini/
http://www.head-fi.org/t/595071/android ... st_8998731

. Corsair HS1 Gaming headset (USB DAC/amp/headphones):
http://www.anandtech.com/show/3989/cors ... ng-headset
http://forum.xda-developers.com/showthr ... st27238117

. Creative Xmod:
http://reviews.cnet.com/external-audio- ... 05686.html
http://www.forum-audiophile.fr/musique- ... ml#p336853

. 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 ... st_8948190

. ELE EL-D01:
http://www.head-fi.org/t/586909/the-dis ... st_8886336
http://www.head-fi.org/t/642554/fiio-e7 ... st_8991125

. FiiO E7 (USB DAC/amp):
http://www.headfonia.com/fiio-e7-portable-dac/
http://www.androidnz.net/2012/07/galaxy ... art-2.html

. FiiO E07K Andes (USB DAC/amp): to be confirmed
http://headfonics.com/2012/12/fiio-e07k-the-andes/
http://www.head-fi.org/t/638910/new-fii ... st_8924515
http://www.head-fi.org/t/628254/fiio-e1 ... st_8973799

. FiiO E17 using USB Audio Recorder PRO (USB DAC/amp):
http://www.headfonia.com/the-upgrade-fiio-e17-alpen/
http://www.head-fi.org/t/595071/android ... st_8958018

. Furutech ADL Cruise (USB DAC/amp):
http://www.furutech.com/a2008/product2.asp?prodNo=399
http://www.head-fi.org/t/608535/wolfson ... st_8567838

. GoVibe DAC:
http://jaben.net/forums/index.php?topic=2824.0
http://forum.lowyat.net/index.php?showt ... ry53317360

. GoVibe Mini USB DAC:
http://www.head-fi.org/t/566934/introdu ... ni-usb-dac
http://www.head-fi.org/t/614111/finally ... st_8525675

. GoVibe Petite (USB DAC/amp):
http://www.head-fi.org/t/290711/govibe- ... tle-update
http://www.head-fi.org/t/595071/android ... st_8552452

. HRT HeadStreamer (USB DAC/amp):
http://www.headfonia.com/hrt-headstreamer-review/
http://www.head-fi.org/t/608535/wolfson ... st_8677483

. HRT Music Streamer II:
http://highresolutiontechnologies.com/music-streamer-ii
http://www.head-fi.org/t/608535/wolfson ... st_8534856

. HeadAmp Pico USB DAC/Amp: bug fixed by HeadAmp
http://www.head-fi.org/t/258967/headamp ... der-thread
http://www.head-fi.org/t/632019/apex-gl ... st_9036297
http://www.head-fi.org/t/595071/android ... st_9037872

. HeadAmp Pico Upsampling USB DAC:
http://www.headamp.com/pico/pico_usb_dac/index.htm
http://www.head-fi.org/t/595071/android ... st_9037872

. HeadRoom Total BitHead (USB DAC/amp):
http://www.headphone.com/learning-cente ... ad-faq.php
http://www.head-fi.org/t/595071/android ... st_8527516

. HeadStage USB DAC cable:
http://www.inearmatters.net/2010/04/sho ... cable.html
http://www.headphiles.org/index.php/top ... #msg241979

. HiFiMan Express HM-101:
http://www.head-fi.org/t/571330/hifiman ... le-usb-dac
http://forum.xda-developers.com/showpos ... tcount=291

. HiFimeDIY Sabre USB DAC using USB Audio Recorder PRO:
http://hifimediy.com/index.php?route=pr ... duct_id=83
http://forum.xda-developers.com/showpos ... stcount=75

. Hippo CriCri+ using USB Audio Recorder PRO (USB DAC/amp):
http://www.head-fi.org/t/626412/review- ... -from-this
http://forum.lowyat.net/index.php?showt ... ry57358183

. iBasso D-Zero (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=73
http://www.head-fi.org/t/571116/review- ... st_8933882

. iBasso D2 Boa (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=30
http://www.head-fi.org/t/552014/picture ... st_8509186

. iBasso D2+ Boa (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=42
http://www.computeraudiophile.com/f6-da ... post171651

. iBasso D5 (USB DAC/amp):
http://www.head-fi.org/t/556490/ibasso- ... sb-dac-amp
http://www.head-fi.org/t/614111/finally ... st_8462693

. iBasso D6 using USB Audio Recorder PRO (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=69
http://www.head-fi.org/t/595071/android ... st_8980613

. iBasso D10 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=39
http://www.head-fi.org/t/628374/samsung ... st_8735134

. iBasso D12 (USB DAC/amp):
http://www.ibasso.com/en/products/show.asp?ID=63
http://forum.xda-developers.com/showpos ... tcount=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 ... st_8959039

. iQube v2 (USB DAC/amp):
http://www.i-qube.nl/index.php?id=24
http://forum.xda-developers.com/showpos ... count=1268

. JH Audio JH-3A (USB DSP/DAC/amp/JH16 CIEM):
http://www.jhaudio.com/product/jh-3a-ds ... ar-monitor
http://www.head-fi.org/t/595071/android ... st_8799910

. Jabra GN 5035 (USB headset):
http://reviews.cnet.com/headsets/jabra- ... 62996.html
http://forum.xda-developers.com/showpos ... count=1368

. KingRex UD-01:
http://www.kingrex.co.uk/dac.html
https://www.facebook.com/headfonia/post ... 7358128700

. Leckerton UHA-4 (USB DAC/amp):
http://www.leckertonaudio.com/products/uha-4/
http://www.head-fi.org/t/536982/leckert ... st_8773152

. Leckerton UHA-6S MKII (USB DAC/amp):
http://www.leckertonaudio.com/products/uha-6s-mkii/
http://www.head-fi.org/t/602493/new-lec ... st_8698006

. Logitech wíreless gaming headset G930 (USB wireless headset):
http://www.logitech.com/en-gb/product/7248?crid=721
http://www.head-fi.org/t/595071/android ... st_9004830

. M-Audio Duo USB Audio Interface:
http://www.soundonsound.com/sos/oct02/a ... maudio.asp
http://www.head-fi.org/t/595071/android ... st_8788814

. Matrix Mini-i (USB DAC/amp):
http://www.headfonia.com/matrix-mini-i-balanced-dac/
http://www.head-fi.org/t/595071/android ... st_8768166

. Meier Audio Cantate.2 (USB DAC/amp):
http://www.head-fi.org/products/meier-a ... -cantate-2
http://www.head-fi.org/t/595071/android ... st_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/showthr ... ?t=1703218

. Microsoft LifeChat LX-3000 (USB headset):
http://www.microsoft.com/hardware/en-au ... /JUG-00003
http://forum.xda-developers.com/showpos ... count=1355

. MyST 1866 PortaDAC (USB DAC/amp):
http://www.head-fi.org/t/616889/myst-18 ... ons-thread
http://www.head-fi.org/t/595071/android ... st_8852573

. NuForce Icon HDP (USB DAC/amp):
http://www.nuforce.com/hp/products/iconhdp/index.php
http://www.head-fi.org/t/608535/wolfson ... st_8567838

. NuForce Icon Mobile (USB DAC/amp):
http://www.6moons.com/audioreviews/nufo ... obile.html
http://www.head-fi.org/t/595071/android ... st_8759826

. NuForce Icon uDAC-2 (USB DAC/amp):
http://www.digitaltrends.com/headphone- ... -2-review/
http://forum.xda-developers.com/showpos ... stcount=17

. Objective DAC (ODAC):
http://epiphany-acoustics.co.uk/our-pro ... e-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/628374/samsung ... st_8939722

. ODAC+O2 (USB DAC/amp):
http://epiphany-acoustics.co.uk/our-pro ... h-usb-dac/
http://www.jdslabs.com/item.php?fetchitem=48
http://www.headnhifi.com/index.php/shop ... 0527192048
http://www.facebook.com/permalink.php?s ... 8276945555

. Ordnance .25 (USB DAC/amp):
http://jaben.net/forums/index.php?topic=9984.0
http://www.head-fi.org/t/614111/finally ... st_8462693

. RSA Intruder (USB DAC/amp):
http://www.raysamuelsaudio.com/products/intruder
http://www.head-fi.org/t/627080/new-bal ... st_8781567

. RSA Predator (USB DAC/amp):
http://www.raysamuelsaudio.com/products/predator
http://www.head-fi.org/t/595071/android ... st_8538933

. Sony PHA-1 (USB DAC/amp):
http://www.head-fi.org/t/624676/sony-ph ... le-dac-amp
http://www.head-fi.org/t/645086/samsung ... st_9033830

. Stoner Acoustics UD100:
http://stoneracoustics.blogspot.fr/
http://forum.lowyat.net/index.php?showt ... ry54596977

. Syba SD-AUD20101:
http://www.sybausa.com/productInfo.php?iid=1191
http://www.head-fi.org/t/595071/android ... st_8736082

. Topping D1 Mark 2 (USB DAC/amp):
http://www.head-fi.org/t/636606/topping ... k-2-review
http://forum.xda-developers.com/showpos ... tcount=871

. Topping D2 (USB DAC/amp):
http://www.mightybigword.com/tnt/2012/0 ... ac-review/
http://forum.xda-developers.com/showpos ... count=1357

. Topping TP30 (USB DAC/amp):
http://news.cnet.com/8300-5_3-0.html?ke ... ping+TP-30
http://www.androidnz.net/2012/05/samsun ... audio.html

. Turtle Beach Audio Advantage Micro II:
http://linkai8424.blogspot.fr/2011/03/t ... ro-ii.html
http://www.head-fi.org/t/595071/android ... st_8978516

. Unique Melody PP6 using USB Audio Recorder PRO (USB DSP/DAC/amp/CIEM):
http://www.custom-iem.com/um-platform-p ... p-670.html
http://www.head-fi.org/t/613417/unique- ... st_8965862

. VentureCraft Go-Dap X (USB DAC/amp): USB cable provided by VentureCraft
http://venturecraft.jp/gadget_en/gdx.php
http://www.head-fi.org/t/595071/android ... st_8708233

. xDuoo XP-1 (USB DAC/amp):
http://www.xduoo.com/xduoo/ProductShow.asp?ID=47
http://www.erji.net/read.php?tid=132039 ... ad=&page=1
Last edited by DanBa on Wed Jan 23, 2013 12:17 am, edited 6 times in total.
Cordelia
KVRAF
 
2899 posts since 31 Dec, 2002

Postby Cordelia; Fri Mar 09, 2012 2:42 pm

Fantastic post. Thanks, Dan. Some of it flew over my head but mostly it is very interesting.
It would be GREAT if this were to happen.

Haha. My Android device doesn't recognize the word "android", turns it into "aneroid" and "Google" becomes "tootle".
Oh man, so smart yet so stupid.
mod4
KVRist
 
58 posts since 14 Dec, 2011

Postby mod4; Sat Mar 10, 2012 11:25 am

I gave up on android a long time ago , got an ipad and getting a cheap win 7 tablet , Just look at ebay and see how many different os come up for android , i counted 6. Dont forget how google treat your data too.

If linux was so open in the first place someone would of written software for midi and audio via usb.

Give it 6 months and win 8 tablets will flood market from china and someone will port win 8 to arm tablets running Android.

Google dont care about users they are a marketing ads company.
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Sun Mar 18, 2012 5:33 am

For the time being, the standard USB devices for USB host-capable Android devices are only USB hubs, USB mass storage devices and USB class for human interface devices (for example, mice and keyboards).

I think we have to lobby for imposing USB DAC as a standard Android USB device, like a standard USB device for every Mac or PC (i.e. we don't have to request each individual PC manufacturer to add the USB audio capability).

Google should include USB host (and USB audio) on every new Google "Nexus" device, which is supposed to be a reference Android device for others.

The 1st out-of-the-box (i.e. without modding) Android device able to support USB audio is the Android 4.0 powered Archos G9.
http://www.engadget.com/2012/03/15/archos-80-g9-turbo-ics-tablet-now-shipping/
http://update.archos.com/9/gen9/changes_firmware_archos_android_gen9it4.htm


The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 21 of 18,869.
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

It is ranked in top 3 of less than one-year-old requests.

Vote: Click on the star (it appears after signing in)
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Fri May 04, 2012 2:49 am

"[64GB + 64GB] #GalaxySIII includes an USB driver named "snd-usb-audio" [ALSA USB audio driver]. Only testing will tell if it means USB DAC are supported out of the box." [Supercurio]
https://twitter.com/#!/supercurio/statu ... 0128780289


The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 12 of 21,436.
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

It is ranked in top 2 of less than one-year-old requests.

Vote: Click on the star (it appears after signing in)
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Thu May 17, 2012 3:50 pm

USB audio is enabled on Texas Instruments Blaze tablet, which is targeted at developers.
http://omappedia.org/wiki/USB_on_Blaze_Tablet_with_ICS
http://www.svtronics.com/products/5-blaze-tablet-1-development-platform

"The two HS USB ports are the standard High Speed Host ports and are used for connecting devices like Mouse, Keyboard, USB stick, Camera, USB audio Headset/speakers etc. Also, many customers use the EHCI interface for Modem Connection. If you connect a camera to this port, you can browse the pics on the SD card in camera in the gallery using the PTP daemon in ICS. Also, you can connect USB Headset or speakers and play audio over USB."

"On Blaze if you plug in a USB audio device, all audio will be routed to the device."
http://music.columbia.edu/pipermail/andraudio/2012-April/000614.html


The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 11 of 22,586.
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

Vote: Click on the star (it appears after signing in)
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Sat May 19, 2012 2:20 pm

"[64GB + 64GB] #GalaxySIII includes an USB driver named "snd-usb-audio" [ALSA USB audio driver]. Only testing will tell if it means USB DAC are supported out of the box." [Supercurio]


"The Samsung Galaxy S III: AndroidNZ goes hands-on, brings you our thoughts and exclusive details
...and what about those USB audio drivers?

Anyone with a passing familiarity with me will know this was one of the questions I most wanted an answer to. You see Supercurio was able to ascertain that USB audio drivers are present on the S3, only there was no way for him to know whether they work out of the box.

Sadly it seems they do not.
To my great disappointment there was no audio output on connecting my FiiO E17 USB DAC and headphone amplifier. I guess we'll just have to keep waiting for some enterprising developer to make use of those orphaned drivers that are just sitting there on the S3..."
http://www.androidnz.net/2012/05/samsung-galaxy-s-iii-androidnz-goes.html


The Google request "Enable USB Audio" has reached the Top 10 of the Google issue rankings.
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

Vote: Click on the star (it appears after signing in)
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Sat May 26, 2012 8:47 am

Like the overwhelming majority of factory or stock Android devices, with the exception of the Archos G9 tablet and the developer-targeted Texas Instruments Blaze tablet, the factory Linux-powered Logitech Squeezebox Touch does not support USB DACs.

The USB audio is enabled manually on Squeezebox Touch:
http://www.digitalaudioreview.net.au/index.php/news-blog-and-showcase/john-darkos-blog/item/150-how-to-enable-usb-audio-output-on-the-squeezebox-touch

The latest method uses an applet which allows a custom kernel to be installed and provides menus to select the audio output device.
This custom kernel can support 24-bit/192KHz USB DACs. It can also support asynchronous USB DACs which sound theoretically better than the legacy adaptive USB DACs.
http://www.digitalaudioreview.net.au/index.php/news-blog-and-showcase/john-darkos-blog/item/362-enhanced-digital-output-applet-for-squeezebox-touch
http://forums.slimdevices.com/showthread.php?94855-Triode-s-USB-24-192-plug-in-sound-quality-impressions

The Google request "Enable USB Audio" has reached the Top 9 of the Google issue rankings.
http://code.google.com/p/android/issues/list?cursor=android%3A24614&sort=-stars

Image
wasi
KVRian
 
565 posts since 27 Jun, 2011

Postby wasi; Sun May 27, 2012 11:50 pm

And why is this a bigger issue than generally lower latency audio processing? I'm no engineer, but I figure if I already get high latency with my phones built in 48kHz/16bit headphone/mic DAC, 192kHz would probably bring the whole system to its knees, or wouldn't it? For the limited audio use I have for android in its current state I'd take midi/OSC over USB long before I'd care about USB audio.

I starred it because it seems an audio issue that's getting attention for once (look where the others are ranked) but I've lost hope long ago that Android will be even close to iOS for music production.
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Sat Jun 02, 2012 1:18 am

Apparently, the USB audio feature is enabled on factory Samsung Galaxy S III:
http://forum.xda-developers.com/showpost.php?p=26757706&postcount=133

"I got my sgs3 a few hours ago and just plugged it into my Topping tp30 USB DAC/amp and it's playing audio through it to my speakers!!!"


Affordable hi-fi rig:
http://news.cnet.com/8301-13645_3-20058833-47.html?tag=txt;title

music stored on SGS3 > SGS3 player > digital audio stream >> USB cable >> USB DAC/amp Topping TP30 >> speakers

http://www.youtube.com/watch?v=jR6Vc28N ... e=youtu.be

Image

Image

Image


Keep lobbying for the Android USB audio standardisation (i.e. USB DAC as a standard USB device, like a USB mass storage device, for Android smartphone/tablet).
http://code.google.com/p/android/issues ... mary%20Sta rs

Vote: Click on the star (it appears after signing in)
griels
jaaathmaster
 
2692 posts since 31 May, 2001, from Marlow, S. Bucks, UK

Postby griels; Tue Jun 05, 2012 10:27 am

wasi wrote:And why is this a bigger issue than generally lower latency audio processing? I'm no engineer, but I figure if I already get high latency with my phones built in 48kHz/16bit headphone/mic DAC, 192kHz would probably bring the whole system to its knees, or wouldn't it? For the limited audio use I have for android in its current state I'd take midi/OSC over USB long before I'd care about USB audio.

I starred it because it seems an audio issue that's getting attention for once (look where the others are ranked) but I've lost hope long ago that Android will be even close to iOS for music production.


The point (for me at least) is that it should allow low-latency access to the audio interface via ALSA. None of the provided APIs (even OpenSL) seem to be able to offer less than 250ms of latency, which is utterly useless for real-time playing. We need 20ms or less, really 10ms is desirable, and halve that for round-trip audio (e.g. FX pedals). It's not an issue of lacking CPU. With quad-core Android devices all over the shop, that's out of the question. For what it's worth, a higher sample rate would probably reduce the latency, as on desktop DAWs.
Music with dinner is an insult both to the cook and the violinist.
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Sat Jun 09, 2012 12:06 pm

Samsung Galaxy S III interworks with USB DAC/amp FiiO E7:
http://www.androidnz.net/2012/06/galaxy-s-...-it-really.html

music stored on SGS3 > SGS3 player > digital audio stream >> USB OTG cable >> USB DAC/amp FiiO E7 >> headphones


Samsung Galaxy S III triggers a new era of Hi-Fi for the masses with affordable rig:

. affordable (subsidized) smartphone

. affordable common USB DAC/amp compliant with PC or Mac, like FiiO E7 (us$80)
http://www.amazon.com/FiiO-Portable-Headph...39194973&sr=8-4
NwAvGuy geek's verdict: "The biggest compliment I can pay the E7 is I can't find much I would change for a portable product in this price category."
http://nwavguy.blogspot.fr/2011/05/fiio-e7-usb-dac-amp.html
"Clearly, the E7 is priced very competitively, and I consider it a good product — not some cheap Chinese stuff. Not only is the E7 packed with features, it also comes with a solid build quality, and a solid sound quality as well."
http://www.headfonia.com/fiio-e7-portable-dac/

. affordable headphones, like Digitech Pro Monitor Headphones (us$50), clone of Fischer Audio FA-003, Brainwavz HM5 or Lindy Premium Hi-Fi headphones
http://www.jaycar.us/productView.asp?ID=AA2065
"Now that I've had these for a good month I can honestly say they are my 'New' daily headphones!
I simple love the music that comes from these headphones.
They are beautifully balanced with sparkly highs that are not offensive to the ears, mid's that introduces a 'fun' factor to the music for all genres and lastly lows that are firm, bassy and goes amazingly deep with out distorting or overpowering the rest of the music.
The clarity is excellent with a very nice sound stage and for a 'closed' headphone they do sound quite open and spacious!
Isolation is fantastic especially listening to music or playing games at night.
Comfort is excellent and the 'killer' clamp grip slowly eases after regular use! I've listened to these all night and in to the early morning without wanting to take them off!"
http://www.head-fi.org/products/digitech-p...es/reviews/6900


Image


Keep lobbying for the Android USB audio standardisation (i.e.USB DAC as a standard USB device, like a USB mass storage device, for Android smartphone/tablet).
http://code.google.com/p/android/issues/de...Summary%20Stars

Vote: Click on the star (it appears after signing in)
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Fri Jun 15, 2012 6:55 am

A digital audio rig:
http://www.androidnz.net/2012/06/samsun ... -demo.html

music stored on Samsung Galaxy S III > Samsung Galaxy S III player > digital audio stream >> USB OTG cable >> USB DAC/amp FiiO E7 >> Logitech speaker


Image

Image

Image

Image

http://www.youtube.com/watch?v=46IiRyigUH0
griels
jaaathmaster
 
2692 posts since 31 May, 2001, from Marlow, S. Bucks, UK

Postby griels; Fri Jun 15, 2012 7:19 am

In the meantime, a cross-platform real-time audio API which targeted various relevant libraries, incuding ALSA and the AudioTrack/OpenSL stuff, as well as the CoreAudio stuff in iOS, would be a great, and gracefully-degradable way of implementing audio apps that would benefit from realtime on mobile platforms.

It looks like the PortAudio guys contemplated this but it hasn't got out of the stable doors yet. Perhaps the JACK or JUCE guys have something?
Music with dinner is an insult both to the cook and the violinist.
DanBa
KVRist
 
58 posts since 7 Mar, 2012

Postby DanBa; Fri Jun 22, 2012 12:31 pm

The Samsung Galaxy S III interworks with the ODAC:
https://plus.google.com/107354758331405 ... CaM42irMeU
http://pastebin.com/Jjq4xnT3

SGS3 > digital audio stream >> USB DAC "ODAC" >> amp "O2" >> headphone


Image


It's interesting that the SGS3 can power the ODAC, which is a USB powered 24/96 DAC, without a powered USB hub.
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