This one is of a concern as this is one of the reasons on why i purchased the M8. The M8 is being advertised as being android 4.0+ compatible. I cannot get my samsung tab pro 12 to recognize the M8. I have other usb dac that do work with my tablet so im pretty confident it isn't the tablet or my USB OTG cable. When i plug in the M8 you can hear it click over. The LCD display immediately changes to USB locked. When the music begins playing, the M8 switches from locked to unlocked several times. When the music stops you hear a digital buzzing noise.
Unfortunately, I'm having a similar fate. Once the USB OTG connected to my Samsung Note 4 phone & Samsung Tab S (both screen would display "USB Connector Connected"). However, there's no sound when the music is playing on my phone/Tab. The M8 display is fixed at the "Locked" screen.
I did the firmware update but still no joy. Geez this is getting frustrating. Is there anyone else that is also having so much problem with the M8 playing DSD files or is it me only? My unit might be a lemon unit. I'll try to get a replacement...more hassle... lol
Does anyone else use this DAC with the optical connection, mine keeps on going to "unlock" screen if no sound is playing through my computer when in optical mode. The clicking sound is driving me crazy :/
Is there a way to lock the mode with some tinkering on the computer?
I did try from android device Android 5.0 with usb Audio, I only have 192Khz as sampling rate...
I had a bunch of trouble with low quality OTG plug (locked after some click) and since I've switched to beter cables all is beter.
I've also intalled USB Audio player PRO and now it is great !
The device need to be fully charged.
I also retart the phone/tablet/Box with OTG and DAC powereb before trying to play or each time i modify some parameter in USB Audio Player.
I did have some locking of wrong sample rate if i do not properly restart For DSD I have some cut probably due to the OTG bandwith limitation.
I had no pbs to update the firmware except that i did not noticed any changes...
I will give some more try from my Adroid TV Box and see how it perform with MPD.
Unfortunately, I'm having a similar fate. Once the USB OTG connected to my Samsung Note 4 phone & Samsung Tab S (both screen would display "USB Connector Connected"). However, there's no sound when the music is playing on my phone/Tab. The M8 display is fixed at the "Locked" screen.
Let's suppose the SMSL M8 is compatible with the native USB audio of your Android device.
music file >> stock music player (or YouTube) running on Android device >> USB OTG adapter cable + regular USB cable provided by SMSL >> SMSL M8 USB DAC >> amp >> headphones
Each component should be separately tested.
Go to next test only if the ongoing test is successful.
. Test the SMSL M8 with a PC or a Mac:
PC >> regular USB cable >> SMSL M8 USB DAC >> amp >> headphones
. Test the Android device with a USB OTG adapter cable and a simpler USB peripheral like a USB mouse or a USB keyboard:
Android device >> USB OTG adapter cable >> USB mouse
. Test the complete setup:
music file >> stock music player (or YouTube) running on Android device >> USB OTG adapter + regular USB cable >> SMSL M8 USB DAC >> amp >> headphones
If the last test is not successful, the current native USB audio of the Android device is apparently not compatible with the SMSL M8.
Then test the SMSL M8 with one of the following three music player apps which include its own USB audio user-space driver (i.e. USB DAC driver):
. USB Audio Player PRO (UAPP): "Important: connect your device BEFORE starting the app, otherwise it will not get detected!"
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
. HibyMusic: free
https://play.google.com/store/apps/details?id=com.hiby.music
. Onkyo HF Player
https://play.google.com/store/apps/details?id=com.onkyo.jp.musicplayer
https://play.google.com/store/apps/details?id=com.onkyo.jp.hfplayer_unlocker
The Android media player framework can only output 48kHz PCM audio to an external USB DAC for the time being.
USB Audio Player PRO, HibyMusic and Onkyo HF Player can play and output high resolution audio. They can also play DSD music file and output DSD over PCM (DoP).
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/6285#post_11306308 A list of USB OTG cables:
http://goo.gl/4JyOe5
Android USB Audio is in the first step of development.
The FiiO E17 USB DAC/amp for example was not compatible with the first version of USB audio of the Samsung Galaxy S3. The E17 can now work with the S3.
It is not easy for the latest entrants (Samsung, Sony, HTC, LG, ..., 3rd party USB audio developers like UAPP developer or Onkyo, and now Google with Android 5.0 Lollipop) in the existing USB DAC jungle because the USB specification allows some variability.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/4080#post_10270550
The latest entrants have to adapt their USB audio implementation to (most) existing USB DACs.
They have to be compatible with different interpretations of the USB specification.
Once the native Google USB audio becomes mature, it will very likely become a reference USB audio implementation in the USB DAC industry used for testing by the developers of new USB DACs, i.e. these USB DAC developers will have to adopt the Google interpretation of the USB specification, because a "professional" USB DAC maker should not ignore Android, the biggest computing device market share.
The XMOS Multi-Function Audio Design Reference is used by many USB DAC makers to speed up the development of their USB DAC compatible with PC, Mac and Android; and the XMOS developers test it against PC, Mac and some key Android devices.
Gosh finally I got the DSD files to play! The culprit is the USB slot in my laptop which has some issues. After I switched it to another USB slot, everything works perfectly!
I have a couple questions on the mechanics of this unit that hopefully someone that has one can answer.
- when you apply power via the outlet, does it come up in standby or can it start playing directly?
- if the answer to the above is that it comes up in standby,is there any remote support at all (e.g. for a Harmony)? It doesn't appear so, but I figure it's worth checking.
Reason for asking:
My potential application is in our living room in an active system using a MiniDSP nano-digi. I currently run all the DACS on switched power from the receiver (used for the amp channels and volume via the 7.1 analog inputs), and so in this mode the DACs have to go straight to playing when power is applied. I do have it as an action item to get this system set up with a Harmony remote though, so if it can be powered on via the Harmony that might be acceptable.
Given the auto-power off feature, I'm assuming everything is done electronically and it'll come up in standby and hence won't work in my setup, but give the apparent value proposition it seems worth asking.
The M8 DAC is powered in 9V and NOT 5V from a 2.5 x 5.5 mm plug.
When you power on the Dac it goes in playing mode but if nothing is sent the unit goes in auto shutdown mode after less than 10 minutes.
To wake it up you have to push a physical button on the front right (On/Off). On the left button, you can select with single press the input (USB, Optical,Coaxial) with long press you select the filters (PCM Mode: slow,mini,fast DSD mode: 40,50,60,70). Those functionality seems only available using this button but the choice are kept if you shut it down and restart it.
The provided driver is the standard XMos Dev driver 2.23 and it does not have fancy control / feedback panel so you do not have soft button/control.
The only remote you can have is the first my grand'pa made with a long cue and his knob-stick
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