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Android phones and USB DACs - Page 141

post #2101 of 5581

While we are on the topic of cables can I get confirmation that I selected the correct cables to connect my new rig..yet to arrive. Xperia Z to a Sony PHA-1 Micro USB to Micro USB.

Thanks for any input

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post #2102 of 5581

A USB OTG device, like the Xperia Z, is a dual-role USB device, sometimes a USB host, sometimes a USB peripheral:

 

A USB OTG software program and USB OTG hardware components are included at the USB level.

A USB OTG device is configured to USB host mode or USB peripheral mode by USB OTG software/hardware measuring the value of the ID or Sense resistance (i.e. pin 4) of the USB interface.

 

 

1000

 

 

When the Micro-B plug of a regular cable is inserted into the Micro-AB receptacle of a USB OTG-capable Android device, the Sense resistance is greater than 10Ω, and the Android device is configured to USB peripheral mode.

 

When the Micro-A plug of a so called OTG cable is inserted into the Micro-AB receptacle of a USB OTG-capable Android device, the Sense resistance is less than 10Ω, and the Android device is configured to USB host mode.

 

USB is a master-slave communication bus: USB communication can only take place between a master device or USB host, and a slave device or USB peripheral.

 

As standard USB DAC, like the standard USB audio part of the Sony PHA-1, is operating as USB peripheral or B-device, the USB OTG-capable Android device, like the Xperia Z,  should operate as USB host or A-device or Micro-A plugged device.

 

According to the USB specification, the physical appearance of a Micro-A plug (related to A-device or USB host or USB master) should be different to the physical appearance of a Micro-B plug (related to B-device or USB peripheral or USB slave): this easy-to-use USB feature is aimed for human beings.

 

 

 

 

"According to USB spec, such a cable should be labelled with A and B on the overmolds on the ends.

Also, the A end should have a rectangular cross section, and the B end should be chamfered.

Now, I don't know if all the cable makers follow the spec or not."

http://www.head-fi.org/t/632019/apex-glacier-amp-dac-review-and-appreciation-thread/75#post_8812425

 

 

 

 

 

Also, some USB cable manufacturers use colour differentiation:

http://www.ttvjaudio.com/Connect_your_Galaxy_S3_to_the_Glacier_p/the0000104.htm

 

Xperia Z A-device > USB out >> red Micro-A plug to black Micro-B plug cable >> Sony PHA-1 B-device

 

 

 

 

USB OTG software / hardware components don’t base on the physical appearance of the plug to configure the USB OTG device to USB host mode or to USB peripheral mode: they measure the value of the ID or Sense resistance (i.e. pin 4) of the USB interface.


Edited by DanBa - 4/9/13 at 3:12am
post #2103 of 5581

I have bought a half dozen short mini cables in the last few weeks and only one was labeled.  I wish all were and I wish the hardware makers noted their connection type somewhere in their documentation...How hard would it be to add "mini USB 'B' connection" if that is what they use??

post #2104 of 5581
Could anybody with a Note 2 chime in with the settings (if any) in the phone that are needed to pass the USB audio out? If there are none and it should just automagically work I'm off to root and install the kernel recommended earlier.
post #2105 of 5581

No settings, should work automatically if a supported DAC is connected. 

post #2106 of 5581
Quote:
Originally Posted by SetiroN View Post

Nexus 4 working handsomely with ziddey's OTG kernel and jacknorris' patch (external power required ofc).

 

Rather good news for Google Nexus 4 owners!

 

"The first problem with getting OTG working on the Nexus 4 is that the kernel does not support it. This has been solved using a modified version of Franco’s kernel. The second problem is that the Nexus 4 cannot physically supply the necessary 5 volts. The way around this is to use a Y-cable, and supply the needed voltage from an outside power source such as a wall outlet or external battery pack. Some users have also reported success using a powered USB hub....."

http://newsheads.com/android-advanced-usb-otg-on-the-nexus-4/

 

Nexus 4 A-device > USB out >> Micro-A plug to Type-A receptacle Y-cable >> USB mouse B-device

 

 

 

 

Ziddey, the XDA modder, doesn't have a USB DAC to test with for the time being.

http://forum.xda-developers.com/showpost.php?p=40081522&postcount=204

post #2107 of 5581
Quote:
Originally Posted by Rockin_Zombie View Post

No settings, should work automatically if a supported DAC is connected. 

 

Thanks for the reply; guess a root and perhaps kernel upgrade is in order.
post #2108 of 5581
Quote:
Originally Posted by lostinthesauce View Post

Could anybody with a Note 2 chime in with the settings (if any) in the phone that are needed to pass the USB audio out? If there are none and it should just automagically work I'm off to root and install the kernel recommended earlier.

None, plug and play.
post #2109 of 5581

Sony Xperia ZL smartphone & Stoner Acoustics UD100 USB DAC:

 

http://www.engadget.com/2013/04/10/sony-xperia-zl-review/

http://stoneracoustics.blogspot.fr/

 

"Got my Xperia ZL today and love it.

The walkman app is great and the ability to use my UD100 USB DAC is fantastic and am loving this phone from a media point of view."

http://forums.overclockers.com.au/showpost.php?s=00bf76e604f9f640c25e08fabf0ed42e&p=15240770&postcount=174

post #2110 of 5581
Quote:
Originally Posted by BBEG View Post

Panvi is reporting some issues with it that Meizu is working with them to resolve, but I don't know if they will be phone specific issues.

 

Still, it's appealing to me that this might be the way I was looking for to turn my phone into a mobile Android HTPC as long as I've got access to a monitor and keyboard. Keep a little USB hub, the dock, and my audio gear in a little bag and bring that over to buddies' apartments instead of my busted ol' laptop (easier when your circle of friends ALWAYS has spare monitors and keyboards). Also breaks down and stores easier than a laptop, even if I brought a portable monitor and/or keyboard.

 

As a brief followup, I'm also game to snatch one of the suckers up and try it out if someone would be kind enough to assist with ordering and whatnot. Also, any word on the resolution to those firmware issues? 

 

This is the first dock I've seen with USB OTG capability, and that might be a very useful thing indeed. If I do end up being able to snag one, I think it would be perfect for running into a small DAC/amp combo (the Meier PCSTEP, in my case) for listening in bed. 

 

Back to the usual! Apologies for the intrusion. :)

 

EDIT: Well here's at least one other dock, although it's meant for the car (and seems a bit overpriced IMO): http://www.craigsdocks.com/samsung-galaxy-s3-car-dock/


Edited by Theogenes - 4/10/13 at 8:35pm
post #2111 of 5581

Just received the Firestone Audio Black Key USB DAC and it works a treat with my Nexus 7, will try shortly with S3!

post #2112 of 5581

.... and the redkey USB to Coaxial converter works perfectly with my nexus 7 without hotplugging!

post #2113 of 5581

I'm in the market for my first portable amp to use only with my phone.  At the moment I have an iPhone, but I want to switch to a Galaxy S4 when it comes out.  I dont know much about phone audio and was a little confused about compatability between iPhones and other devices like the Galaxy. 

 

Is there something I could purchase now to use with my iPhone that will also work with the Galaxy S in the future?  Is connectivity the main feature to look for in terms of making it compatable with the phone your using it with? 

 

Would an iPhone only be able to connect using the pin port on the bottom, and USB for other devices or is there a work around to make something like the FiiO e12 work on both?  

 

This amp will only be used with my phone.....I have a desktop setup for at home use.  Can someone recommend a sub $200 amp for both phones, or is that even a possibility without sacrificing quality?

 

Thanks for you input!

post #2114 of 5581

StringBoi, you have a lot of pretty common questions for jumping into this. In short, most devices in my experience work either with Android or with Apple. There are ways around this (you can get a DAC/amp combo that can be run as amplifier only and use an LOD until you get your S4, for example), but it appears to be generally true. There are a handful of devices that can work with both (the V-Moda Verza and the Go-Dap X [I believe] it was based upon come to mind), but they're pretty rare at this point.

 

What might be a good idea is to make sure you have May 4th off and attend the Canlanta get-together (link). There will be a lot of great gear there and plenty of opportunity to actually see and hear how these things work, instead of trying to decipher it all from articles and forum posts. Doing your research is almost always a good thing, but getting a chance to actually interact with the gear and the people who know the most about it would be just invaluable. 

 

If you aren't able to or interested in attending, I actually think this is the most useful thread I've come across on learning how to utilize Android devices to get excellent sound while on the go. While it might seem a bit daunting at first, I'd recommend starting at the beginning and working your way through. I've done that with this and numerous other threads, and I've yet to regret it. (I'm casually working my way through the 500+ page IE8 thread now... that one will take a while). You'll learn a great deal along the way, I guarantee it. 

 

Anyway, hope this was at least somewhat helpful. If you just want a brief off-the-cuff recommendation that meets your $200 budget, I'd say an inexpensive LOD (like this Fiio L9) and entry-level DAC/amp (like this iBasso D-Zero) would be a solid start. Although without knowing what headphones you're using, it would be tough to know for sure ;). 

 

Let us know how you get on, bud!!


Edited by Theogenes - 4/12/13 at 9:13pm
post #2115 of 5581
Quote:
Originally Posted by Theogenes View Post

Anyway, hope this was at least somewhat helpful. If you just want a brief off-the-cuff recommendation that meets your $200 budget, I'd say an inexpensive LOD (like this Fiio L9) and entry-level DAC/amp (like this iBasso D-Zero) would be a solid start. Although without knowing what headphones you're using, it would be tough to know for sure ;). 

 

 

Another affordable USB DAC/amp, $99 TCG U-SKIN

http://www.head-fi.org/t/655746/tcg-u-skin-the-portable-slim-decoding-amp-dac-one-machine

 

. bypassing the iPod/iPhone internal amp:

iPod/iPhone > line out >> TCG U-SKIN amp >> headphones

 

 

 

 

. bypassing the Galaxy S3 internal DAC & internal amp:

Galaxy S3 > digital USB audio out >> TCG U-SKIN DAC/amp >> headphones

 

 

 

 

 


Edited by DanBa - 4/13/13 at 2:13am
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