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Android phones and USB DACs - Page 170

post #2536 of 5363

HTC One X & FiiO E07K:

http://www.tellementnomade.com/forum/viewtopic.php?p=151624#p151624

 

HTC One X using USB Audio Recorder PRO > digital USB audio out >> FiiO E07K >> headphones

 

 

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality

 

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality

post #2537 of 5363
Quote:
Originally Posted by DanBa View Post

 

 


 

 

Now it just freezes after playing one track, which is strange.

Is info@audio-evolution.com the right address?

post #2538 of 5363

Yes, it is.

 

 

Quote:
Originally Posted by eXtream View Post


Simply email me at info AT audio-evolution.com for any issue you have.

 

post #2539 of 5363
Quote:
Originally Posted by stefzulj View Post

Hey everyone, newbie reporting in. 

Just wanna get things started by thanking NZtechfreak and DanBa for all the invaluable knowledge and research they've put into this topic, and also everyone else who has contributed. I'm still very new to this scene, but have been lurking for a little while and have learnt so much from all of you. Your time and efforts are very much appreciated.

My first purchase was a pair of Westone 4Rs, then quickly purchased an iBasso D-zero after discovering the world of DACs and amps. I've been using this setup with my Galaxy S3 for the last couple of months and I must say, for its size and price, I feel the D-Zero is a really good entry level DAC/amp and has definitely served its purpose so far.

Unfortunately, I fear that this "audio bug" has bitten, and am not only now looking to upgrade my D-zero, but I've just purchased some Viper cables by Toxic Cables from a fellow Head-Fier. The DAC/amp combos I am currently looking at are the Leckerton UHA-6S MK2 and the XM6 by Practical Devices, but my questions for now will be focused on the XM6 and its functionality with the S3.

First of all, is there any detectable background noise or hissing when connected via the USB to the S3 with no playback? I have noticed with my D-Zero there is always a slight hiss when connected via USB to the S3 at around 50% volume and above, even when no music is being played, and at maybe 20% volume and above with the gain switch on. For some reason it's even louder when connected to my laptop through USB. Not quite sure why this is or even if this is normal.

Secondly, does the track skipping/pausing dial on the XM6 function with any Android music player? Particularly interested in Poweramp and Neutron Player.

And lastly, would a DAC/Amp benefit from a more expensive copper/silver OTG cable, or should I say, would there be a substantial difference in terms of sound quality? There is one made by Forza Audioworks which I currently have my sights on too!

Once again, thanks to everyone here and I look forward to posting more in the future.

atsmile.gif

 

Answered a long time back, I just found it when reviewing and thought I'd drop it again.

Quote:
Originally Posted by fuzzy1969 View Post

I got up a practical devices xm6 from ebay yesterday. Its works with the samsung s3 international version via the OTG cable jellybean 4.1.2. poweramp and neutron (only 2 players I have at the moment) the mixers work and poweramp also supports the forward/play/reverse jog wheel on the back.

 
post #2540 of 5363

Is anyone interested in a (relatively) cheap device that takes the native PCM output of an Android phone and feeds it to a USB DAC? It'll have 100% compatibility with devices complying with the Android Accessory Development Kit 2012 (most Android 4.2+ devices it seems) no matter if they support USB host or not and no matter whether USB audio support is enabled in the kernel, and 100% compatibility with any Linux-compatible USB DAC.

 

It'll go like this:

Android 4.2+ thing -> device -> USB DAC 

 

I've got a prototype working with my Nexus 4 and my AudioQuest Dragonfly.


Edited by tninety - 6/21/13 at 1:26am
post #2541 of 5363
has anybody tried an Android device together with the Nuforce UDH-100?
post #2542 of 5363
Quote:
Originally Posted by tninety View Post

Is anyone interested in a (relatively) cheap device that takes the native PCM output of an Android phone and feeds it to a USB DAC? It'll have 100% compatibility with devices complying with the Android Accessory Development Kit 2012 (most Android 4.2+ devices it seems) no matter if they support USB host or not and no matter whether USB audio support is enabled in the kernel, and 100% compatibility with any Linux-compatible USB DAC.

 

It'll go like this:

Android 4.2+ thing -> device -> USB DAC 

 

I've got a prototype working with my Nexus 4 and my AudioQuest Dragonfly.

That sounds very cool. My interest would depend on what "relatively cheap" means. I mean, there are USB to optical converters that works with androids that enables the user to use almost any DAC with optical or coxial input.

post #2543 of 5363

Update : I've isolated that what I've initially reported as "weird" sound, even with digital volume maxed out, coming out of my GSIII with the Meier Corda Cantate.2 USB was Neutron Media Player. Prior to this I've tested DBPowerAmp and it worked fine, by now I'm using MediaMonkey (Beta version) for Android an it works like a charm, albeit no 64-bit sound shaping (doesn't need it though). Also maybe some Android update fixed the battery management down the line; this one doesn't drain it as much as when I used it with PowerAmp.

 

Also, using the RND dock to keep it upright, and it works with the generic OTG cable I have. When I ordered it I went ahead and also got the A-Case Superleggera Pro case, which is easy to remove thanks to the rubber inner case. My old (but chipped and scratched up) slim plastic case actually fit when the insert on the dock is removed, but given its condition and that I removed it to try the Superleggera anyway, I decided to use the latter. I might have someone rewire the mini-USB port into OTG, and if I can still hook up the charger to it, so I won't use the cumbersome OTG converter cable (not visible in the pic, but it took a bit of work to keep it from being all over the place), but I'll see if Blue Jeans can come up with an OTG-wired mini-USB to USB-B cable first.

 

1000

post #2544 of 5363
Quote:
Originally Posted by kimvictor View Post

That sounds very cool. My interest would depend on what "relatively cheap" means. I mean, there are USB to optical converters that works with androids that enables the user to use almost any DAC with optical or coxial input.

It'll likely be pretty easy to build and require minimal amounts of software. I'm looking at the Raspberry Pi as a possible platform since it has good USB DAC compatibility. 

post #2545 of 5363
Quote:
Originally Posted by tninety View Post

Is anyone interested in a (relatively) cheap device that takes the native PCM output of an Android phone and feeds it to a USB DAC? It'll have 100% compatibility with devices complying with the Android Accessory Development Kit 2012 (most Android 4.2+ devices it seems) no matter if they support USB host or not and no matter whether USB audio support is enabled in the kernel, and 100% compatibility with any Linux-compatible USB DAC.

 

It'll go like this:

Android 4.2+ thing -> device -> USB DAC 

 

I've got a prototype working with my Nexus 4 and my AudioQuest Dragonfly.

It sure does sound interesting.  What kind of size do you anticipate it being?  Are we talking tiny & portable?

post #2546 of 5363
Quote:
Originally Posted by nnotis View Post

It sure does sound interesting.  What kind of size do you anticipate it being?  Are we talking tiny & portable?

Probably the same size as a Raspberry Pi + battery + case. I have to take advantage of something that runs a desktop OS since that seems to be the only way to get near-100% compatibility out of USB DACs. I could even use one of those tiny Android stick PCs that run Ubuntu.

 

It's probably going to be an open source thing - it's pretty trivial to get Android 4.2 to connect and appear as a sound card to Linux. 


Edited by tninety - 6/21/13 at 10:23am
post #2547 of 5363
Quote:
Originally Posted by tninety View Post

Is anyone interested in a (relatively) cheap device that takes the native PCM output of an Android phone and feeds it to a USB DAC? It'll have 100% compatibility with devices complying with the Android Accessory Development Kit 2012 (most Android 4.2+ devices it seems) no matter if they support USB host or not and no matter whether USB audio support is enabled in the kernel, and 100% compatibility with any Linux-compatible USB DAC.

 

It'll go like this:

Android 4.2+ thing -> device -> USB DAC 

 

I've got a prototype working with my Nexus 4 and my AudioQuest Dragonfly.

 

 

As far as I understand, your device is a PCM gateway:
 
. at the Nexus 4 side,  the Nexus 4 acts as a USB peripheral or B-device, and your device acts as a USB host or A-device. 
Your device is then an Android Jelly Bean-specific USB audio device.
 
. at the AudioQuest Dragonfly side or standard USB DAC side, your device acts as a standard Linux USB host or A-device, and the USB DAC acts as a USB peripheral or B-device:
 
Google Nexus 4 > Google accessory mode USB audio out >> regular USB cable >> your device > standard USB audio out >> regular USB cable >> Dragonfly USB DAC
 
Google Nexus 4 > Google accessory mode USB audio out: PCM stream >> regular USB cable >> PCM stream > your device > standard USB audio out: PCM stream >> regular USB cable >> Dragonfly USB DAC

Edited by DanBa - 6/21/13 at 3:12pm
post #2548 of 5363
Quote:
Originally Posted by DanBa View Post

 

 

As far as I understand, your device is a PCM gateway:
 
. at the Nexus 4 side,  the Nexus 4 acts as a USB peripheral or B-device, and your device acts as a USB host or A-device. 
Your device is then an Android Jelly Bean-specific USB audio device.
 
. at the AudioQuest Dragonfly side or standard USB DAC side, your device acts as a standard Linux USB host or A-device, and the USB DAC acts as a USB peripheral or B-device:
 
Google Nexus 4 > Google accessory mode USB audio out >> regular USB cable >> your device > standard USB audio out >> regular USB cable >> Dragonfly USB DAC
 
Google Nexus 4 > Google accessory mode USB audio out: PCM stream >> regular USB cable >> PCM stream > your device > standard USB audio out: PCM stream >> regular USB cable >> Dragonfly USB DAC

Yes. It works perfectly with my desktop PC running Linux as the gateway, so I'm testing my software on a smaller device (starting with Raspberry Pi) soon. 

post #2549 of 5363
I can 100% confirm the fiio e17 works with the Motorola RAZR hd (xt925) and USB audio recorder pro.

Canadian phone from rogers with micro sim not an American phone.

Sounds fabulous with hd650.

Also for anyone with accelerated or strange playback within USB audio recorder pro, try switching the sample rate to and fro. Worked for me.
post #2550 of 5363
Don't know if it's been reported before or not but my HTC One works with the udac2 using the stock player and with the AQ Dragonfly using USB Audiorecorder Pro.
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