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Android phones and USB DACs - Page 192

post #2866 of 5374
Quote:
Originally Posted by carsten2501 View Post

In a way absolute off-topic BUT:
Are there any other operating systems than Android (>4.1) that supports usb dac/amp?
Fanx

 
iOs does, but in Apple's very special way (hit-and-miss with Camera Connection Kit on older 30-pin devices, or a dedicated iOs-ready DAC).
post #2867 of 5374
Quote:
Originally Posted by carsten2501 View Post

In a way absolute off-topic BUT:

Are there any other operating systems than Android (>4.1) that supports usb dac/amp?

Fanx

 

 

My stock Galaxy S3 is powered by Android 4.0 Ice Cream Sandwich, and works with ODAC USB DAC.

 

 

 

1000

 

 

So far, Google has very likely no idea about high dimensions music devices based on USB DAC, but Android will very likely have a big market share in this area thanks to the compliance with the open standards: standard USB (USB OTG, USB host …), free and open source Linux kernel (USB audio driver for ALSA …), free and open source Android.

 

"Well, the USB Audio issue feels like it could've belonged at LG, or Asus or whoever the maker of each specific device happens to be.

It's the OEMs and platform vendors that actually implement the USB Audio support (I happened to be involved in this when I was at Sony Mobile).

Google (as of Android 4.1) essentially just provides some of the higher-level mechanisms for detection of USB Audio accessories, while the OEM / platform vendor fills in the blanks. Those blanks can either be very small if you only want audio output at a fixed sample rate, or they can grow quite big if you want more features like recording, voice calls, etc.

You could argue that Google should provide a complete basic solution for USB Audio, but that's not the setup today."

http://music.columbia.edu/pipermail/andraudio/2013-May/000833.html

 

Hopefully, things change.

The Google issue 24614 "Add support for USB Audio" has been switched to "Assigned".

https://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

 

 

 


Edited by DanBa - 8/10/13 at 3:49pm
post #2868 of 5374

32-bit/384kHz M2Tech hiFace DAC & Galaxy Note II:

http://www.whathifi.com/blog/m2tech-hiface-dac-hands-on-review

http://www.alpha-audio.nl/2013/05/review-m2tech-hiface-dac/

https://www.facebook.com/photo.php?fbid=10151579277217712&set=a.385608472711.168535.145626052711&type=1&theater

 

Galaxy Note II using USB Audio Recorder PRO > digital USB audio out >> USB OTG cable adapter >> hiFace DAC

 

 

 

 

 

High resolution sound on an Android Tablet? Yes we can!

http://m2techsrl.blogspot.fr/2013/06/high-resolution-sound-on-android-tablet.html

 

"We recently did some experiments with an Asus Nexus 7 tablet using Android and some of M2Tech products. Thanks to an app called USB Audio Recorder Pro which, as the name suggests, is mainly a recorder but also offers some playback features, our engineer Pietro succeeded in playing back 192kHz tracks via both the hiFace Two and the hiFace DAC.

 
But what's more interesting is that, once a Joplin ADC was connected to the tablet, he was able to record up to 384kHz! This give more than a chance to people who want to make highest quality field recordings during concert or sessions: they only need a small and cheap tablet, a Joplin and a pair of microphones with a cheap phantom supply unit (ande, hopefully, a hiFace DAC to monitor the recording). Thanks to the excess gain available on the Joplin, no real mike preamp is necessary.
 
The special point is that no USB Audio Class 2.0 compliant driver was available on the tablet: the experiment succeeded thanks to a feature of the app: it includes a user space driver emulator, that is a piece of software which exclusively interfaces to the audio peripheral (this means that no other app can use this feature to in turn access the peripheral) without any need for kernel recompiling. This means that every tablet running Android 2.2, provided with a 2.0 USB port, can use hiFace Two, hiFace DAC and Joplin.
 
The app can be found on www.audio-evolution.com. It's not free, but I think that 5.49€ may be worth the pain (I have no interest in the company selling the product, nor am I paid to advertise the product)."
post #2869 of 5374
Question, can I use a cable to go from my usb micro port on my galaxy s4 to either a dac or maybe usb micro to RCA plugs? I don't want to connect from my amplified headphone jack........also I see a lot of external Dax's or amps with full size USB ports is there a USB micro to reg. USB port? I'm just looking for a way to use my s4 as a digital player. Lastly, is the s4 using the internal dac if its coming out the USB micro port? I don't want to double dac.....lol

Thanks so much!

Dave
post #2870 of 5374
Question, can I use a cable to go from my usb micro port on my galaxy s4 to either a dac or maybe usb micro to RCA plugs? I don't want to connect from my amplified headphone jack........also I see a lot of external Dax's or amps with full size USB ports is there a USB micro to reg. USB port? I'm just looking for a way to use my s4 as a digital player. Lastly, is the s4 using the internal dac if its coming out the USB micro port? I don't want to double dac.....lol

Thanks so much!

Dave
post #2871 of 5374
Quote:
Originally Posted by hidaven View Post

Question, can I use a cable to go from my usb micro port on my galaxy s4 to either a dac or maybe usb micro to RCA plugs? I don't want to connect from my amplified headphone jack........also I see a lot of external Dax's or amps with full size USB ports is there a USB micro to reg. USB port? I'm just looking for a way to use my s4 as a digital player. Lastly, is the s4 using the internal dac if its coming out the USB micro port? I don't want to double dac.....lol

Thanks so much!

Dave

Los of questions smily_headphones1.gif

1) Yes, you can connect S4 to an external DAC via USB OTG adapter. The list of DACs reported to work with S4 is in this thread.
2) No, there is no such thing as USB to RCA cable. If by RCA you mean stereo signal from 2 RCA connectors typically found in component interconnects, then it's analog signal. USB is a digital port. If by RCA you mean single-RCA digital SPDIF signal, then it could be sourced from the phone's micro USB port, but you'll need an active converter, not just a cable.

3) If you use USB OTG, the transmitted signal will be purely digital, bypassing the phone's onboard DAC, so no, you will not double dac!
4) A USB OTG cable is a specially wired cable, it is not just a "micro usb to something" piece of wire! The typical USB OTG cable is micro USB male to USB female:

otg_cable_640x360.jpg

You then connect your usb device to this female connector, using whatever appropriate simple cable.

If you want to avoid this extra connection, then you need to DIY a custom OTG cable.
post #2872 of 5374
Quote:
Originally Posted by carsten2501 View Post

In a way absolute off-topic BUT:

Are there any other operating systems than Android (>4.1) that supports usb dac/amp?

Fanx
 


Ok, here comes the smolder,
nokia C6_01 connected to E7 works fine. Nokia proprietary symbian belle OS (default player).
I was shocked when I found out, as I was 100% sure that it wont work but it did while unfortunately flash drives doesn't. So I guess any s^3+ with otg support will work with fiio e7.


Sent from my C5302 using Tapatalk 4 Beta
post #2873 of 5374
Quote:
Originally Posted by jared basshead View Post


... nokia C6_01 connected to E7 works fine. Nokia proprietary symbian belle OS (default player).
I was shocked when I found out, as I was 100% sure that it wont work but it did while unfortunately flash drives doesn't. So I guess any s^3+ with otg support will work with fiio e7...

Very interesting!

My neighbor has a Nokia E6-00. I will try to get access to it. But I have only a FiiO E07K.

 

post #2874 of 5374
Ahhhhhh, thanks so much!

1. Where does one get this micro to USB female mini cable?

2. I'm assuming that the extra cables or digital source (ipod, computer, s4, quality etc)don't degrade the sound quality before the DAC and its the dac to headphones that matters most?

3. For amps with a mini usb, I would need a micro to mini "b" plug I.e. fiio e17 then right?

Thanks so much in advance.......wish this was all plug and play. : )







Quote:
Originally Posted by SV_huMMer View Post

Los of questions smily_headphones1.gif

1) Yes, you can connect S4 to an external DAC via USB OTG adapter. The list of DACs reported to work with S4 is in this thread.
2) No, there is no such thing as USB to RCA cable. If by RCA you mean stereo signal from 2 RCA connectors typically found in component interconnects, then it's analog signal. USB is a digital port. If by RCA you mean single-RCA digital SPDIF signal, then it could be sourced from the phone's micro USB port, but you'll need an active converter, not just a cable.

3) If you use USB OTG, the transmitted signal will be purely digital, bypassing the phone's onboard DAC, so no, you will not double dac!
4) A USB OTG cable is a specially wired cable, it is not just a "micro usb to something" piece of wire! The typical USB OTG cable is micro USB male to USB female:

otg_cable_640x360.jpg

You then connect your usb device to this female connector, using whatever appropriate simple cable.

If you want to avoid this extra connection, then you need to DIY a custom OTG cable.
post #2875 of 5374

NuForce has released Icon DAC for Android based devices.

 

 

Quote:

Icon DAC is a newly designed DAC with very high power headphone amp and supports Android*, PC and Mac. The appearance might be similar to Icon HDP but they are two very different products.

 

The innovative NuForce Icon DAC delivers the latest mobile device connectivity by supporting USB Audio for Android (4.1 and beyond with OTG), Mac and PC (with advanced PCM and DSD), a high-power headphone amplifier, a linear volume control and genuine audiophile construction throughout.

 

With the advent of Smartphones and their enormous storage capabilities, a great many audio enthusiasts have been longing for a quality DAC/headphone amp they can simply plug into in order to experience their favorite music delivered with vivid clarity.

 

The Icon DAC stands as the ideal solution for mobile music listeners seeking audiophile-grade performance. This versatile device features a USB input compatible with typical Windows or Mac computer-based setups, as well as Android 4.1.1* (with optional OTG cable). In addition, employed simply as a headphone amp or preamp the Icon DAC provides a secondary analog input for stereo signals from most home-audio and mobile sources.

 

 

 

post #2876 of 5374
Quote:
Originally Posted by matbhuvi View Post

NuForce has released Icon DAC for Android based devices.

 

 

 

 

 


Nice, but there's no dimensions?  Seems like that would be VERY important especially if it was used with a phone.

post #2877 of 5374
Quote:
Originally Posted by matbhuvi View Post

NuForce has released Icon DAC for Android based devices.

 

 

 

 

 

https://www.nuforce.com/index.php?option=com_k2&view=item&layout=item&id=666&Itemid=2668#specifications

 

 

Quote:
*Android compatibility is limited to smart phones running Android 4.1.1 that enables support for USB OTG Audio features.

does that mean that even if the phone supports USB OTG, the dac will not work if the phone does not usb audio out? Or is it saying that the dac will come with usb drivers for android to make it work? 

post #2878 of 5374

I've got Samsung Galaxy SII >> usb OTG >> usb cable >> Fiio E17 >> headphones.

 

Ho do I get it to send the music out via the usb post?

post #2879 of 5374
"I've tested UAE Tiny with the following devices: Samsung Galaxy S2 (JB 4.1.2) : Doesn't work with default audio player, only through USB Audio Recorder app" [Earfonia]:
 
Galaxy S2 running Jelly Bean 4.1.2 using USB Audio Recorder PRO >> USB OTG cable >> HiFiMeDIY Sabre Tiny USB DAC
post #2880 of 5374
Quote:
Originally Posted by imeem View Post

https://www.nuforce.com/index.php?option=com_k2&view=item&layout=item&id=666&Itemid=2668#specifications

 

 

does that mean that even if the phone supports USB OTG, the dac will not work if the phone does not usb audio out? Or is it saying that the dac will come with usb drivers for android to make it work? 

 

As USB is a master-slave communication bus [master = computer = USB host, slave = peripheral = USB peripheral], the USB OTG feature allows a native peripheral like Android phone to switch to USB host mode so that it can interact with a USB peripheral like USB DAC.
 
Appropriate software program of the host is needed to drive the peripheral.
 
USB Device Class Definition for Audio Devices specification details the common operation of standard USB DAC peripherals so that a "USB Device Class Definition for Audio Devices"-compliant or USB Audio-compliant software program, like USB Audio Recorder PRO at the user space or USB Audio Driver for ALSA at the kernel space, can drive USB Device Class Definition for Audio Devices or standard USB DACs without special drivers.
 
 

 


Edited by DanBa - 8/13/13 at 3:20am
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