Android phones and USB DACs - Page 156

The GROM USB2P is the first Android Jelly Bean-specific USB DAC; more specifically it’s a multimedia car kit.

http://www.gromaudio.com/press/USB_audio_press.html

Jelly Bean-powered Android phone acting as USB peripheral > Android-specific digital USB audio out >> USB cable >> GROM USB2P acting as USB host

"GROM Audio announces USB audio steaming for Android Jelly Bean devices, giving users the best possible sound quality for in-car listening.

GROM is the first and only car audio company to deliver fully digital audio connection from any Android Jelly Bean devices (via USB2P or MST3P interfaces) to many factory car stereos. The direct USB Digital Audio connection provides high-quality sound, making a huge impact on Android users in-car media experience.

"The majority of car audio sound systems and radios will not allow high fidelity sound through wireless Bluetooth or aux-in, which was the main reason for developing direct Android USB Audio connection. Connecting audio digitally allows the music signal to remain in a digital form until it gets converted into an analog signal at amplifier or DAC; meaning no unnecessary manipulations are made to the signal on the way to your ears."- GROM Audio

GROM's direct USB Digital Audio connection via the GROM-USB2P adapter is the best way to get high quality sound in the car. Android users (Jelly Bean onwards) can play any music app including Pandora, SoundCloud and others to listen to their music library via the USB Digital Audio connection."

An Android Jelly Bean-powered smartphone/tablet can have:

. an Android-specific USB audio out capability (or USB audio accessory capability), or/and

. a standard USB audio out capability (or USB audio host capability)

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/135#post_8508754

An Android Jelly Bean-specific USB DAC acts as a USB host, and an Android Jelly Bean smartphone/tablet acts as a USB peripheral.

The Android-specific USB DAC acts as a USB host, and provides power to the Android Jelly Bean smartphone/tablet.

http://developer.android.com/guide/topics/connectivity/usb/accessory.html

A standard USB DAC compatible with PC / Mac acts as a USB peripheral, and a PC / Mac / OTG-capable Android smartphone/tablet acts as a USB host.

The USB host provides power to a bus-powered USB DAC.

The USB host doesn’t provide power to a self-powered USB DAC.

A standard ACA-capable USB DAC could provide power to an ACA-capable USB host.

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/2160#post_9368775

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/2235#post_9406368

Wow, that is absolutely AWESOME, because it means more and more people are working on getting USB audio out of Android devices. I looked up the app Grom uses (AALinQ), the compatibility list from the devices I have shows it will work with all the phones (S3, DNA, Galaxy Nexus, and Droid Charge), but none of the tablets (Galaxy 7.7 and Xyboard 8.2). It's only a matter of time before someone devices a desktop (or portable!) version of this... And if it allows us to stop having to wait on Google to make this a @#$% priority, it will be AMAZING!!

God I love technology. 

Major props to NZtechfreak and PeterPenHK for their contributions to the June issue of Australian Personal Computer - the V-MODA Vamp looks very cool, too ! No shortage of tech geeks in this hobby, but it wont hurt to have a few more onboard  :D

Hi, it has maybe noting to do with a usb DAC, but a sort of. I bought the AllShare Cast Wireless Hub, EAD-T10 for the use in my car. It is my intention to play 5 channel wav files in my car via the Galaxy S4.

I thought about this setup:

Galaxy S4>EAD-T10>HDMI to optical converter>5 channel car amplifier

Or

Galaxy S4>EAD-T10>Home theater set

Any thought about this?