Hello, new contributor to the forums.
I cannot find a straight answer regarding Lollipop's USB Audio, Google Music (or any streaming service, not stored files), and car stereos. I know that prior to 5.x, connecting via USB to a DAC/usb audio device support was device-specific. Some devices and car stereos will play music through a USB-connected Android device using MTP.
My main question is... Can an Android device stream all device audio via USB (ultimate purpose of playing music via a streaming service, Google Music) to any car stereos?
I have a couple more specific questions that I'd love answers to if you don't know the direct answer to the question above:
1) The decision to stream music via USB vs. 3.5mm: is that decision made on a device/OS/app level?
2a) I'm familiar with the handshake and protocol that devices go through with a BT connection, but I'm curious if there is any similar agreement that occurs if the Android device agrees to stream digital audio data to a device that will be receiving it.
2b) I'm asking 2a because I know car stereos are outfitted with an internal DAC, but testing a phone with a couple car stereos in a store seemed to automatically trigger MTP or not recognize the device. So does a DAC passively accept the digital data coming into it and process it, or is there some agreement that has to take place when digital data is getting fed into it? Does a car stereo intercept the connection and not send the data off to the internal DAC?
3) This is lower priority... But I'm curious if anyone has connected their Android device to an external DAC and then connected that DAC to their car stereo? Did this give you better sound quality than a BT connection? These are the two reasonable fallbacks if I can't get a straight answer regarding USB audio out with a streaming service on Android.
Hope to get some responses and try to be gentle! :laugh:
Related
so I was listening to police scans on my topaz, when i realized that we lack something that could be very useful. What if an app simulated the USB headset on the topaz so that the car's headunit would let me transmit sound that way instead of an aux cable (similar to, and maybe emulating, ipod control mode). I think the main advantage would be that usb transmits a much higher quality and more channels than 2 channel aux, but also that it would let you select your music straight from the topaz instead of searching on my headunit (which is a pain in the ass to folder browse with)
any thoughts? something like this already exist?
edit - this is the best i could find, but im not talking about docking, just audio and charging (through software if possible)
http://www.webnetta.com/2008/12/27/hack-connects-t-mobile-g1-to-ipod-dock/
http://forum.xda-developers.com/showthread.php?t=465412
http://forum.xda-developers.com/showthread.php?t=564678
edit2 - my headunit has a front USB port, that is what I intend to use
I am curious to know it if would be at all possible to develop a USB mode to emulate an iPod's USB connection. It'd be a tedious reverse engineering process to see how the iPod pairs with stereos, docks and such, however the outcome would be great considering how Android has no love in the stereo market right now. Perhaps the JVC receiver that will be coming out soon will change this... (http://ceoutlook.com/2011/12/05/jvc-mobile-gets-android-and-gesture-control/)
An ideal application would be to pair with your car stereo, just plug in your phone to the stereo and select the iPod emulator and voila, you can browse your music, play your music, etc. from your car stereo.
Yes, we have bluetooth, but as far as I know you're unable to browse your device on your car stereo using this. The audio quality is probably not as good as a direct connection to the stereo. Just recently I've become aware that it can transmit the song information to the receiver. The problem with this is finding a receiver that supports it, and for a relatively low price tag. Most low-end receivers already have iPod hookups, but if you throw in HD Radio, SiriusXM, Bluetooth, Navigation, or anything else the price will quickly double. You can also just get a simple receive that allows calls via Bluetooth but not A2DP for a lot less.
We also have an audio jack we could connect to, or audio through USB, but you still don't get interfacing as an iPod would (such as skipping tracks, browsing music, play/pausing)
Yes we need android connectivity just like the iPod. Why hasn't this happened yet?
i also was searching for this.
now i use this solution
http://www.amazon.de/gp/product/B000PS70DM
This is needed
Old thread, I know, but this is an excellent idea. I had thought about such an emulation over the last few years, but had been happy to use DAB radio in my current car. We get a new car this weekend that doesn't have DAB, so I'm left with the old iPod USB connection issue.
I'm no coder these days, but is some reverse engineering of the USB signals not possible? Using bluetooth audio is *some* sort of solution, but doesn't go as far as to allow browsing tracks, albums, artists, playlists etc from my car's interface.
It seems like this is the obvious solution that no-one has thought of.
D
I've been wanting to do this for years, ever since iPod control in car stereos became commonplace (2006-ish?). That is, build a little box with a female iPod dock connector and a USB port. Plug any USB flash drive or hard drive into the box, and it reads the MP3 files on the drive and emulates an iPod. The iPod protocol is serial and seems to be hacked and documented on the web.
https://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2007/awr8_asl45/awr8_asl45/index.html
https://nuxx.net/wiki/Apple_Accessory_Protocol
My problem is I don't have the programming ability to write the software for the little iPod emulator box.
I am looking to buy a home audio system, however unlike most people I don't want a big sound system for listening to movies or playing music really loud. My goal is to be able to play music throughout the house at low enough levels where you can talk over it.
I just want to place a bunch of small speakers on the cieling in different rooms as well is on the back porch.
I have a Mac Computer, Galaxy Nexus, and Transformer Prime. All of which can play all of my music. On top of that I have GoogleTV (Logitech Revue).
What is my best option for home audio (preferably through Google Music)?
Is my best bet to wait for "[email protected]"?
I have a bunch of old surround sound speakers that I don't use anymore, can I use those for low volume music playing? Don't want to spend $1000 on this...
what system you use doesn't matter that much, its controlling how your going to get the music from your music cloud (i'm assuming for you google music) to the rooms
your logitech revue can now use google music app
furthermore with the RF emitter of your logitech revue, your phone would be able to control your surround sound components from anywhere in the house..
or you can set up some type of media server on a computer and run that to audio system VIA HDMI
and there is a plethora of apps to control a media server remotely from your android device
checkout out plex media server or similiar solutions
for your actual system check out nuvo technologies
is a good place to start, these are really expensive though
or google HTD
be forwarned, whole house audio solutions aren't cheap
My Setup:
Crappy computer with a good sound card and windows and Spotify on it
This is connected to my 10.2 (5.1 of these are used for my surround sound in the living room, the other 5.1 are on a different channel and are used for around house audio) via HDMI
This surround sound system is programmed into my Logitech Revue Harmony software, thus allowing the control of it through my phone
I also have Spotify remote control app on my phone to control spotify on the crappy computer, thus allowing volume and content control all from the phone... hope this helps!
And yes, you can use your existing surround sound speakers as long as they use generic audio cable (black/red), you would just need to buy a central reciever and run all of your wires through the house, for what your talking any surround sound reciever will work, a good one with 5+ channels should run you max 600 bucks and that is MAX you could get in the 300 range if you wanted.
Best solution for you IMO would be to hook your logitech revue up to whatever audio solution you get and play google music through that
Awesome, thanks for the very detailed reply.
I think I will look for an inexpensive receiver and use my Revue. My only question now is how do I hook up my GoogleTV to a receiver?
I do not want my tv to run through the audio system, I want to play tv through the tv speakers.
A more expensive route (but the best quality and noob friendly) would be a set of Sonos.
I have a media center based on Windows Media Center .All works very well.
I see there's a lot of very inexpensive and handy USB bluetooth adapters for PCs and such. And that gives me an idea. I've tried searching the Almighty Google for this already, but nobody I've found wants to do exactly what I'm looking for, and I'm wondering if anyone here happens to know how to do what I'm planning.
So, what I want to be able to do is play my phone's audio wirelessly through my computer speakers. I'd mostly use this for watching YouTube in bed while my computer on the other side of the room is playing the audio. Because my computer's speakers are much better than the tiny built-in phone speaker, obviously. A lot of people on the internet want to stream their music from their phone to their computer, but that's not what I'm looking for, as all my the music on my phone came from my computer in the first place. I'd imagine I'd mostly be broadcasting YouTube audio, occasionally NetFlix audio, as well. But no media players, so I'd imagine the simplest thing is to broadcast all of my phone's audio output over bluetooth, to my computer, and through its speakers. Has anyone done this? Is this possible, is this easily doable, can this be done with any basic USB bluetooth receiver, et cetera?
My phone's a Samsung Infuse running Android 4.3, I'm on XP for now, sometime next month I'll on Windows 7 Ultimate.
Thanks!
Hey I heard with lollipop we would have USB audio. When I connect my nexus 5 to my car through a USB cable and play some music it doesn't play from the car speakers. Whereas an iPhone was able to play music. Any help on how to make it work would be appreciated.
Probably your car audio needs a software upgrade to work with Android devices/L's USB DAC support.
Your car is looking for a file system, android USB audio is providing stream not a file system so this probably wont work unless the deck can emulate a small sound card or something to accept the input.