Android phones and USB DACs | Page 224 | Headphone Reviews and Discussion - Head-Fi.org

walkman_heart · Nov 1, 2013 at 12:26 AM

@danba

i have microstreamer and s4(i9505) but im having issues(dropped sound)..

if there are any other options for this setup?

thanks

Sent from my GT-I9505 using Tapatalk

rc87 · Nov 1, 2013 at 5:45 AM

Well the nexus-5 is out.
Some interesting news about audio...

Google has introduced audio tunnelling to DSP in Android 4.4. There is a DSP processor on nexus 5 that decodes audio, instead of using CPU for this.
This saves a lot of battery, allowing to double the playback time (on same battery).

Don't know if this will work when using usb dacs too.

Nexus 5 *should* support full usb-otg too. Please confirm with some DACs if you get one, especially with the "high power draw" ones

http://www.androidpolice.com/2013/10/31/kitkat-feature-spotlight-audio-tunneling-to-dsp-dramatically-reduces-battery-consumption-when-playing-audio/

bmichels · Nov 1, 2013 at 6:11 AM

rc87 said:
Well the nexus-5 is out.
Some interesting news about audio...

Google has introduced audio tunnelling to DSP in Android 4.4. There is a DSP processor on nexus 5 that decodes audio, instead of using CPU for this.
This saves a lot of battery, allowing to double the playback time (on same battery).

Don't know if this will work when using usb dacs too.

Nexus 5 *should* support full usb-otg too. Please confirm with some DACs if you get one, especially with the "high power draw" ones

http://www.androidpolice.com/2013/10/31/kitkat-feature-spotlight-audio-tunneling-to-dsp-dramatically-reduces-battery-consumption-when-playing-audio/

Only 16 or 32 Gb of storage WITHOUT Micro-SD expansion possible ! Too Bad..... not enough room for High-Res files !

burritoboy9984 · Nov 1, 2013 at 9:06 AM

sibilantz said:
What phone are you using? I don't think I've had distortion since the galaxy s2 .. which was like 2 years ago
Has improved a lot since but I think it is still a little bit behind apple with the exception of possibly the note 3

I'm using a Nook HD(+) with a powered usb hub. What did they end up fixing on the S2 to make it sound better? The driver?

Thanks

pappy97 · Nov 1, 2013 at 2:37 PM

rc87 said:
Well the nexus-5 is out.
Some interesting news about audio...

Google has introduced audio tunnelling to DSP in Android 4.4. There is a DSP processor on nexus 5 that decodes audio, instead of using CPU for this.
This saves a lot of battery, allowing to double the playback time (on same battery).

Don't know if this will work when using usb dacs too.

Nexus 5 *should* support full usb-otg too. Please confirm with some DACs if you get one, especially with the "high power draw" ones

http://www.androidpolice.com/2013/10/31/kitkat-feature-spotlight-audio-tunneling-to-dsp-dramatically-reduces-battery-consumption-when-playing-audio/

This is the first thing I am doing with my Nexus 5 (trying USB DAC on pure stock, unrooted Android 4.4 on Nexus 5)! Got my shipped e-mail last night so I should get it early-mid next week. I will report it as soon as I do.

bhazard · Nov 1, 2013 at 2:48 PM

pappy97 said:
This is the first thing I am doing with my Nexus 5 (trying USB DAC on pure stock, unrooted Android 4.4 on Nexus 5)! Got my shipped e-mail last night so I should get it early-mid next week. I will report it as soon as I do.

Same here. Will try as soon as I get it.

m-i-c-k-e-y · Nov 1, 2013 at 5:39 PM

Nice!!

Anxiouslly waiting for your report. Thanx!

thread · Nov 1, 2013 at 8:46 PM

Not to be a party pooper -- I'm as excited as anyone with the prospect of 4.4 having native USB audio -- but I just installed the first from-source build produced from the paranoid devs as discussed in this thread. Playing music from n7player, I plug in my RSA Predator with a known good OTG cable. The audio continues to play out the built-in speaker. Interestingly, the sound is skippy and glitchy. Meh- it's an early build with several other quirks. Hopefully we'll still get our USB out with 4.4 somehow. It sure would be about #*$#&#$(@ng time . . .

Ra97oR · Nov 1, 2013 at 8:59 PM

My Sony Xperia Z1 works with a Just Audio uDAC-2496 which draws power from USB instead of using battery.

It works on the Just Audio uHA-120Ds as it should anyway. Both are on Neutron player.

DanBa · Nov 2, 2013 at 10:17 AM

walkman_heart said:
@danba

i have microstreamer and s4(i9505) but im having issues(dropped sound)..

if there are any other options for this setup?

thanks

Sent from my GT-I9505 using Tapatalk

I think you should contact Davy, the developer of USB Audio Recorder PRO.

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

davy wentzler said:
If you want, I can have a look what the issue is.
Please start USB Audio Recorder PRO, go to the Prefs tab, select Logging and then Log to file. Exit the app. Go into Android settings, Apps, select USB Audio Recorder PRO and Force Close the app. Start USB Audio Recorder PRO again and take note of what it says exactly. Let me know what it said and please email me the log file called USBAudioLog.txt in the root of your sdcard. Please email to info AT audio-evolution.com.

davy wentzler said:
For anyone who is getting glitches with USB Audio Recorder PRO (for instance with the HRT Microstreamer), could you please try and install this version (this is for people who have purchased it only) :

http://www.audio-evolution.com/priv_downloads/USBAudioRecorderPRO_1.2.7feedbackfix.apk

Please let me know if this changes anything.

Thank you,

Davy

sonargun said:
All glitches I previously experienced using my HRT Microstreamer and GS3 with Audio Recorder Pro have now been resolved. Thank you Davy.

Playback is flawless. Actually a little too flawless..I just heard David Gilmore of Pink Floyd fame clear his throat in the quiet intro of 'Us & Them'. I certainly haven't heard that before! ha ha Is there such a thing as too much clarity?

angeliou · Nov 2, 2013 at 1:43 PM

Galaxy S4 i9505 works with stock music app, after updated to 4.3, with Benhringer uca202. Make sure to check the option in the accessory settings (audio output).

gattari · Nov 2, 2013 at 1:46 PM

Of course, if the Audiorecorder pro team propose a suitable player would be really great.
Ciao

DanBa · Nov 2, 2013 at 7:02 PM

Galaxy Tab 3 & 24/352.8 Resonessence Labs Herus:
http://resonessencelabs.com/dsd-on-iphone-with-herus/

Galaxy Tab 3 using USB Audio Recorder PRO > USB audio out >> USB OTG cable >> Resonessence Labs Herus

DanBa · Nov 2, 2013 at 7:02 PM

burritoboy9984 · Nov 2, 2013 at 8:15 PM

danba said:
Galaxy Tab 3 & 24/352.8 Resonessence Labs Herus:
http://resonessencelabs.com/dsd-on-iphone-with-herus/

Galaxy Tab 3 using USB Audio Recorder PRO > USB audio out >> USB OTG cable >> Resonessence Labs Herus

Just a heads up, this is probably the 8 inch version, as the 7 inch doesn't have usb host working (yet).

-Erik

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