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Head-Fi Buying Guide (Desktop Amps & DACs)
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I am by no means an audiophile nor do I call myself one. My experience with quality audio products is very limited and so is my vocabulary on this topic. That being said I took a pair of these...
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I've had a short history with headphones. My first pair of good headphones were the Audio-Technica ATH-M50x. I will mostly be comparing these two. These headphones are much more better looking,...
I like these just a little better than my Sony MDR XB90ex, which I think is saying a lot. They both have a very ergonomic design that allows them to stay in ear securely and comfortably for...
TOTL (Top-of the line) is something you hear quite often around Head-Fi. The cream of the crop of the audio-world. While that may be true in most instances, investing into a 1200$+ product seems...
Android phones and USB DACs - Page 182post #2716 of 88017/27/13 at 5:32pmThere are phones that have native support, a quick search will answer your question.
Gear mentioned in this thread:post #2717 of 88017/27/13 at 5:49pmpost #2718 of 88017/27/13 at 5:56pmpost #2719 of 88017/28/13 at 3:37ampost #2720 of 88017/28/13 at 4:40amQuote:Originally Posted by satwilson
Jared, could you please provide a link to the cable y
ou purchased? I have Xperia TL, bought an alleged host USB, OTG cable. Could not get it to work with my Audio GD NFB12 in either debugging mode or with USB audio recorder Pro. Figured it is a bogus cable, hopefully not a problem with the Xperia and NFB12 combo. Thanks, satwilson
Its a micro-b to mini otg cable. Am not sure about Xperia TL otg type, but I suppose it may support since it says that it supports xperia T too and to my guessing xperia TL is the LTE version of xperia T.
Jaredpost #2721 of 88017/28/13 at 5:15ampost #2722 of 88017/28/13 at 6:58ampost #2723 of 88017/28/13 at 8:35am
Xperia s > ifi idac.
its working using usb audio recorderpro. Unfortunately it sucks battery fast. @.@
galaxy s4 isnt working on my ifi idac using stock player.
What phone or tablet can play mp3s or flacs on stock player using ifi idac?post #2724 of 88017/28/13 at 8:59am
Just a small update on my situation: bit-perfect playback on android without audiorecorderpro is possible.
I was able to run mpd on debian, running on top of android. So this way my audio stream goes directly to alsa (and my dac), bypassing any interference on android side (upsampling/downsampling and bunch of various effect). And I can simply control it with MPDroid app.
If anyone is interested I can try to explain it, but it requires root and a bit of luck ;)post #2725 of 88017/28/13 at 9:16ampost #2726 of 88017/28/13 at 10:44am
OK, I'll start from theory - on of android sound problems is its own sound layer. So every sound you play goes like this: music player --> android layer --> alsa --> dac --> speaker. Android layer can't pass stream higher than 48/16, so it will downsample anything above (and usually upsample 44.1/16 music as well). After that alsa is coming into play, but default alsa configuration on android includes upsampling as well. So even if your dac is working on android it doesn't mean that it will play your files as expected and unaltered. So there are two ways to bypass it - by using an app with custom usb drivers to send audio to dac bypassing everything in the way (usb audio recorder pro) or accessing alsa directly, but it requires root and proper app (none exists so far. Maybe I will convince developer of aMPD to include alsa output with root, but he's on vacation right now, so eta is unknown).
I really like the technical implementation of audiorecorder, but the main downside for me is that it stops playback as soon as screen goes off making it unusable for me.
Since I'm a no developer by any means custom drivers/apps is far beyond my skills. So the only viable solution I found for myself is to run linux alongside android, and play music from it (to bypass android layer and communicate the alsa directly, disabling any resampling and other stuff). But switching to linux each time I want to change track or play/pause is stupid. The way to solve it - use mpd server on linux and mpd client (MPDroid is the best) on android to do all this stuff.
Running linux is not that hard (but with some limitations - you need root at least, and for some situation - kernel support). My first attempt using Linux Installer and ubuntu image wasn't successful, since alsa wasn't working properly there (didn't see any soundcards).
After some research I found Linux Deploy, which is freaking awesome. Using it I've installed debian (I wasn't using any preconfigured images), so it was configured specifically for my phone. I didn't install any GUI to keep it as lightweight as possible. After installation was done (on One X it took very long time, approx. 4 hours or so, but developer says that it should take around 30 min. Don't know why and honestly don't care why it took so long for me). Alsa was working out of the box, but I've installed alsa-ustils to check some things (how to use it - read my guide, posted few pages back). After that installing and configuring mpd to run on localhost was easy (search google for some guides about mpd configuration. It is possible to do it without GUI, using sudo -e). So now linux playing my music for me, and all controls are done from android.
The only downside I've found so far - when the screen goes off the usb dac unmounts automatically since phone goes to deep sleep (mpdroid has no wakelock), so I have to manually enable simple wakelock to keep cpu running while screen is off.
If someone will have questions about any steps - I will be happy to help, but I think writing step by step guide this time will be useless.post #2727 of 88017/28/13 at 2:43pmpost #2728 of 88017/28/13 at 3:06pmpost #2729 of 88017/28/13 at 4:21pmQuote:
Does the iFi iDAC work with the Galaxy S4 using USB Audio Recorder PRO?
Thanks!post #2730 of 88017/28/13 at 4:24pmQuote:
I’m used to listen music on my Galaxy S3 + ODAC using USB Audio Recorder PRO in shuffle mode while reading ebook.
1. USB Audio Recorder PRO in shuffle mode
2. Click on the Home key
3. Launch eReader app, or launch any other app, or screen timeout
- Android phones and USB DACs
- Head-Fi Buying Guide (Desktop Amps & DACs) 2
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