Android phones and USB DACs
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NZtechfreak

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Yes, several of us have used that cable, works fine.
 
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post-9436095
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RIQUE

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Theogenes

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Quote:
Anybody know if there are different lengths of this cable. Need 4 inch.
 
I believe they only have the one length at the moment. 
 
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post-9438230
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DanBa

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Android & iFi Audio:
http://www.inearmatters.net/2013/04/impression-ifi-audio-idac-ican-iusb.html
http://www.daluso-audio.nl/world-first-ifi-gemini-dual-usb-cable/
http://www.ifi-audio.com/en/improve_android.html
 
"Level 1 Upgrade"
 

 
(i): by using the USB Audio Recorder PRO app
https://plus.google.com/u/0/116118042211695938256/posts/iHR732edAhD
 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
*:For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC."
 
 
 
"Level 2 Upgrade"
 

 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
1 x Gemini Dual Headed USB Cable
*: For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC.
#: eliminate crosstalk contamination between USB Audio and Power inside the USB cable, available soon."

 
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post-9439422
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turokrocks

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Quote:
Android & iFi Audio:
http://www.inearmatters.net/2013/04/impression-ifi-audio-idac-ican-iusb.html
http://www.daluso-audio.nl/world-first-ifi-gemini-dual-usb-cable/
http://www.ifi-audio.com/en/improve_android.html
 
"Level 1 Upgrade"
 

 
(i): by using the USB Audio Recorder PRO app
https://plus.google.com/u/0/116118042211695938256/posts/iHR732edAhD
 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
*:For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC."
 
 
 
"Level 2 Upgrade"
 

 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
1 x Gemini Dual Headed USB Cable
*: For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC.
#: eliminate crosstalk contamination between USB Audio and Power inside the USB cable, available soon."
I got the iUSB, and it worth every penny.
 
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post-9439508
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Benny-x

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Quote:
Android & iFi Audio:
http://www.inearmatters.net/2013/04/impression-ifi-audio-idac-ican-iusb.html
http://www.daluso-audio.nl/world-first-ifi-gemini-dual-usb-cable/
http://www.ifi-audio.com/en/improve_android.html
 
"Level 1 Upgrade"
 
.img
 
(i): by using the USB Audio Recorder PRO app
https://plus.google.com/u/0/116118042211695938256/posts/iHR732edAhD
 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
*:For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC."
 
 
 
"Level 2 Upgrade"
 
.img2
 
"Item list: 
 
1 x Android device
1 x iDAC
1 x iUSB Power
1 x Ultra-low noise power supply**
1 x OTG Cable
1 x Gemini Dual Headed USB Cable
*: For Android devices that support USB Audio.
**:included
***: the iUSB Power must be used as most Android devices do not provide enough power for the iDAC.
#: eliminate crosstalk contamination between USB Audio and Power inside the USB cable, available soon."
 
I've really been trying to get a handle on this, but I couldn't find any clear answers so far. From this picture though, can I gather that ANY usb-DAC (Leckerton, Glacier, Vamp-Verza, PD-XM6) is going to be able to do 24bit 96/192 off of my Galaxy S3 (and soon to be S4)? Because from this picture that's all that's really going on, just got a bunch of iFi products in there, isn't it? Oh, and by "can do" I mean can they output 24bit 96/192 without down-sampling to 16 bit 44.1/48?
 
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post-9439524
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fuzzy1969

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Yes android down samples, but USB recorder recorder pro allows a 24bit data stream (I think, as I havn't tested it)
 
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nihilill

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Japan released Docomo galaxy s3 alpha (running stock jellybean) works with Leckerton UHA-6S.MKII via OTG no fiddling. Received the leckerton yesterday, I still need to hack some cables to length.
 
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fuzzy1969

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Quote:
 
I've really been trying to get a handle on this, but I couldn't find any clear answers so far. From this picture though, can I gather that ANY usb-DAC (Leckerton, Glacier, Vamp-Verza, PD-XM6) is going to be able to do 24bit 96/192 off of my Galaxy S3 (and soon to be S4)? Because from this picture that's all that's really going on, just got a bunch of iFi products in there, isn't it? Oh, and by "can do" I mean can they output 24bit 96/192 without down-sampling to 16 bit 44.1/48?
The PD-XM6 doesn't I beleive do 24bit my memories a bit hazy but Im pretty sure it upsamples 16bit to 24bit but doesn't do 24 bit natively, the apex glacier does though.
 
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nnotis

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The Leckerton DAC can take up to 96 kHz, 24 bit files through its SPDIF and Toslink inputs.  USB audio is limited to 44.1/48 and 16 bit, apparently to ensure it works well with as many portable devices as possible.  And it does work extraordinarily well with the S3.  I've only had mine about a week, but I couldn't be more impressed thus far.  It projects an even larger sense of space than the Headstreamer, which was my previous champ in this regard, but seems to have the neutrality and impact of the Pico.  Thought the latter comparison will have to wait until I get my Pico back from Justin.  I'm having him mod it for use with Android.
 
All three of these units suggest the DAC chip is just a slice of the pie in terms of DAC performance.  Implementing the chip is paramount.  You can't assume that a Saber chip is going to guarantee a good DAC.  Likewise, the Headstreamer and Leckerton end up sounding damn near, if not as revealing as my desktop setup, despite using chips of modest regard.  People also expect the Pico to sound less good than units with two Wolfson chips, or those with asynchronous DACs.  And yet, the Pico usually sounds better.  Perhaps it's best to find engineers of preference rather than chips. 
 
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post-9440915
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DanBa

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"Avoiding stock 16bit/48kHz low-resolution audio system" => avoiding the Android media player framework by using the USB Audio Recorder PRO app.
 
As far as I understand, the current release of Android media player framework decreases or increases the sampling rates of music audio streams to 16/44.1 in order to mix easily these audio streams and 16/44.1 Android system sound (ringtone, notifications …).
 
 

 
 
 
24/96 Galaxy S3 – ODAC & USB Audio Recorder PRO debug log:
 
[24/96 capable ODAC device enumeration]
 
USBAudioDevice: fd = 50, opened = 1, Vend/Prod = 0x1852 / 0x7022, USBrev = 110, configs = 1
USBAudioDevice: Manufacturer = Binary Audio, Product = UAC1 DAC, SerialNr =
...
USBAltSetting1 (AS): link = 7, delay(f) = 0, PCM, type(1) = 1, ch = 2, subframesize = 3, reso = 24
8000, 16000, 32000, 44100, 48000, 96000 (fixed)

 
[24/96 music playing]
 
StartUSBTransfers
selectOutput OK, if = 3, alt = 1
Claimed interface for 3 (alt = 1)
Prepare: maxPacketSize = 388, minPacketSize = 384 bytes, frame size = 4, i_bufferSizeFrames = 16384
Wanted nr transfers = 84
Got 32 transfers!
Actual 'buffer' size = 15360 to 15520
PLAY Prepare: nrOfTransfers = 32, nrOfPacketsPerTransfer = 5, i_sampleRate = 96000
Allocating 32 buffers of 1940 bytes. Each buffer has 5 packets.
Starting from Transport
Out start done
Start PB OK!
startAllTransfers() END ok =
OUT: 11450 (microsec) tot = 1920
OUT: 16432 (microsec) tot = 1920
OUT: 21419 (microsec) tot = 1920
OUT: 26465 (microsec) tot = 1920
OUT: 31436 (microsec) tot = 1920
StopUSBTransfers
stopAllTransfers done!
 
 

 
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turokrocks

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post-9442709
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Bojamijams

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Hi DanBa,
 
I thought of sending you a PM to ask this but just in case other people might be wondering, I thought I'd post it here
 
I'm an iphone user contemplating a switch to Android.. probably the S4... I was intrigued by your posts of the HiFimeDIY Sabre for use in my car..
 
Is that the path you would recommend? an OTG cable + Sabre mini? (I say mini only because the non-mini doesn't seem to work with the 9505 S4)
 
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post-9442832
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ProtegeManiac

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Quote:
Hi DanBa,
 
I thought of sending you a PM to ask this but just in case other people might be wondering, I thought I'd post it here
 
I'm an iphone user contemplating a switch to Android.. probably the S4... I was intrigued by your posts of the HiFimeDIY Sabre for use in my car..
 
Is that the path you would recommend? an OTG cable + Sabre mini? (I say mini only because the non-mini doesn't seem to work with the 9505 S4)
 
I'm not DanBa (obviously) but I'd recommend getting a real car audio receiver. You won't have to pick up the phone to manipulate the player, for one thing, and most receivers nowadays can use phones (iOS or Android) as music storage. Or a USB drive. Plus the signal out of USB-powered DAC, and one that isn't running of a computer sending out 5v, is probably too weak to overcome the noisefloor in some applications.

Better yet, if you're actually serious about serious sound in your car, there are a lot of features on a real car audio receiver, and the serious ones are virtually the equivalent of a home theater receiver's processing power even if you're running stereo. For starters, you can use its active crossover to distribute the signal to each tweeter, midwoofer, and the sub, and thereby allowing you to use its Time Alignment processor to get the sound from each of these arrive at your ears at the same time. You can be sitting off to the left (or right if you're British in any way, including through colonization) but if you get the settings and installation right you can put the main vocals dead center on the dashboard with the other instruments spread out as they would be on a typical Hi-Fi set-up at home.
 
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