Micro usb audio connector - Nook Touch Accessories

Is it possible to use the micro USB audio connector for audio? After rooting, the audio application of the android does not recognize the mp3 files to play. Why not let it do so?

I think that would require USB host mode like on the Samsung galaxy. I think that means needing extra hardware doesn't it? -otherwise I would expect every phone to be capable of it
edit: It is possible but you can fry stuff. Info on NookColor forum

USB host = great possible enhancement?
I wanted to post to proper thread, however I am new here I was not allowed to post on developers forum. So I hope that this post will still somehow find its way there. It also includes your original question.
Since some USB features are now claimed to be working, I wanted to ask directly poping out questions:
http://forum.xda-developers.com/showthread.php?p=21669750
Is it possible to...
1.) disable on-screen keyboard while using USB one?
2.) connect USB soundcard like: http://www.usbgear.com/computer_cable_details.cfm?sku=USBG-X2X&cats=121&catid=121%2C136%2C134
To allow listening mp3, Skype calls.... ?
3.) connect USB Ethernet card like: http://www.usbgear.com/205528.html
4.) to connect other cool usb stuff like: GSM, printers ... whatever
thanks you developer guys, I hope I'll once manage some time to learn more about the system and developement so that I could contribute too !
thanks to androind and nook simple touch creators!

mrWax said:
Is it possible to...
1.) disable on-screen keyboard while using USB one?
2.) connect USB soundcard like: http://www.usbgear.com/computer_cable_details.cfm?sku=USBG-X2X&cats=121&catid=121%2C136%2C134
To allow listening mp3, Skype calls.... ?
3.) connect USB Ethernet card like: http://www.usbgear.com/205528.html
4.) to connect other cool usb stuff like: GSM, printers ... whatever
thanks you developer guys, I hope I'll once manage some time to learn more about the system and developement so that I could contribute too !
thanks to androind and nook simple touch creators!
Click to expand...
Click to collapse
Currently the answer to all of the above is no
The USB host mode patch was done for a specific project (USB keyboard support) and while I have been spending some time playing around with Bluetooth I'm not aware of any other dev(s) working on expanding this atm.
Stuff like audio, networking and Bluetooth requires _a_lot_ more than just the kernel accepting to communicate with the device.

thats shame. allowed skype calls would be great

Skype calls are working on my nook with OTG + USB audio card on usb host mode. But it is a bit difficult ))).

To update these older posts:
Yes, it is possible to disable the soft keyboard when using a USB keyboard.
See NullKbd in the signature.
Yes, Skype works fine.
litvinov said:
But it is a bit difficult ))).
Click to expand...
Click to collapse
Where is the difficulty?
Do a logcat and look for overruns and errors.
There were a few mods done to make Skype work.

so an external usb sound card is working?

Yes, an external USB audio adapter can work.
As a portable solution it's a bit cumbersome.
I don't know what current they usually draw, but my cheapy one draws 75 mA.
A desktop solution with powered hub (charging the Nook), a USB adapter and speakers works fine.

Would USB headphones work directly on that port? I have USB OTG cable and some USB sound card somewhere so I can check with regular 3.5mm jack headphones without trouble when I find some time to do it but I just wonder if anyone tried USB headphones on it and what they think of it. Is it worth of a hassle to buy one for NST?

Some USB devices use a multiplexor on the USB micro connector and can send actual analog audio down the connector.
Many Androids support USB host mode and can support an audio USB adapter, including the ones that go for < $10.
The NST (earlier Nooks with OMAP processors) don't have complete software support for USB host mode but can be coerced into working.
The Glows (later Nooks with IMX processor) don't have complete software or hardware support for USB host mode but can be coerced into working.
The Glow4 (7.8") has audio.

Related

[Q] USB connect in 08' Jeep Grand Cherokee

I bought this car yesterday 01/04/12 and I noticed that it has a USB plug for my phone, so I connected my phone with my Jeep via USB and it does not recognize my phone. Just curious what I have to do to be able to connect the two. It would be pretty sweet because I can load up to 20 gb of storage on my cars hard drive and play music and view pictures and stuff.. so any help would be awesome.
Thank you!
Not likely that the Jeep will interface with your phone. USB ports in cars are generally for thumb drives that you put MP3 files on or for updating the Nav systems. Try calling a Jeep dealer for more info on what capabilities that USB port has.
Miami_Son said:
Not likely that the Jeep will interface with your phone. USB ports in cars are generally for thumb drives that you put MP3 files on or for updating the Nav systems. Try calling a Jeep dealer for more info on what capabilities that USB port has.
Click to expand...
Click to collapse
Thank you, I'll just do it that way.
Might need to put the phone into USB storage mode - gotta tap on one of the notifications.
Can't help too much more - I haven't used USB mass storage mode in ages, being lazy I just adb push/pull.
Putting it in mass storage mode usually works. I haven't used it in a while either as I use bt now. But if you have an external card also the read time when you first plug it in could take a few min.
Sent from my GT-I9100 using xda premium
If it has a USB connection then mass storage should work for mp3's and some other music formats. It does in mine. If for some odd reason it doesn't you should check if it has bluetooth. You can then stream your music and/or do hands free calling
Cozmo1 said:
If it has a USB connection then mass storage should work for mp3's and some other music formats. It does in mine. If for some odd reason it doesn't you should check if it has bluetooth. You can then stream your music and/or do hands free calling
Click to expand...
Click to collapse
Well, I've got it connected via "UConnect". Does that also give me the ability to stream my music?
amaffey said:
Well, I've got it connected via "UConnect". Does that also give me the ability to stream my music?
Click to expand...
Click to collapse
No. I also have an '08 Jeep GC with the Nav radio. In order to play music from the SG2 you will need to connect via AUX input. If you have the rear entertainment unit you can connect the SG2 to those inputs. (Of course you'll need a micro usb to RCA cable but you can get one custom made. Check the accessories thread as there is a member making them.) Else you'll need to connect the SG2 via the headphone jack to the 3.5" input on the radio. Another option is the Lockpick device for the NAV radio. You can google MyGIG Lockpick for more details.
Update: Here's the link to the thread for custom cable. Not sure if he's making anymore but you can check. I bought one and it works great.
http://forum.xda-developers.com/showthread.php?p=18839408#post18839408

micro usb to hdmi...

Any idea if this can be used to display nook's screen on a tv?
http://www.dealextreme.com/p/micro-...-adapter-with-usb-charging-cable-black-140197
It would be really cool if it did, but as far as I know the Nook does not have MHL.
A micro USB connector is only five pins, but if it's implemented in the device they can be switched between:
USB peripheral or host interface
Analog audio headset with microphone
MHL video output
Debugging UART serial port
Unfortunately, the Nook has only been proved to support the USB interface.
USB to VGA
well I have seen these USB to VGA on ebay
could this work?
It would be very interesting to get a USB to video adaptor working.
It might be a long road to getting it to mirror the Nook screen transparently.
The first step is to find something with Linux drivers.
The next step is to get it to expose its frame buffer on the system.
At that point, it would be possible to make an application to copy images between the two frame buffers.
Even that might have some utility for Power Point style presentations.
nook PC?
sounds plausible. would be also nice to be able to use Nook like PC.

OTG

Hi,
Can somebody verify otg connection is working for this tablet?
I tried my cable but it does not turn the device into usb host mode.
A quick test with a usb host testing app showed that this tablet has no usb host capabilities. Shame.
BS - of course this tablet has USB host functionality.
Via the usual OTG adaptor you can connect the usual USB sticks, hard drives (with own power supply), mice, keyboards etc.
It has even a special feature (can be activated in audio settings) for connecting a USB DAC for high-quality sound / recording.
Yes, it works w/o problems
sarobi said:
Yes, it works w/o problems
Click to expand...
Click to collapse
Cool, looks like that test app isn't very accurate then.
This is the result it came up with:
If @datalkingx means with OTG connection to connect USB Flash Drive, Keyboard, etc. then it works, if he means something else then I don't know
sarobi said:
If @datalkingx means with OTG connection to connect USB Flash Drive, Keyboard, etc. then it works, if he means something else then I don't know
Click to expand...
Click to collapse
Not all devices works some memory card reader don't work.

[Q] Use android device as a USB sound card or DAC/amp?

The sound card on my laptop is ageing and was not very good to begin with but the one in my phone is great. Is there a USB (not wireless) solution for my PC to detect my phone as a sound card and have the DAC in my phone process the digital audio signal and for me to listen through my phone's headphone jack?
Basically is there a solution that allows me to use my phone as an external usb headphone DAC/amp?
I've done some googling but not found any viable solution yet.
The first one I found that works is WiFiAudio, which you can get to work over USB by enabling USB Networking.
You have to run software on the PC (I tested from Windows 10). Don't know if there's Mac software but I'll be wanting it as well.
play.google.com /store/apps/details?id=com.vnd.wifi_audio
keithkimster said:
The first one I found that works is WiFiAudio, which you can get to work over USB by enabling USB Networking.
Click to expand...
Click to collapse
it's called USB Tethering in android, which is located in Portable Hotspot section.
We'd like to elaborate here a little as it took us some time to figure out how exactly to use our android as a sound card for a PC.
There's another app out there - SoundWire, which we used and known for some time, we haven't tried WiFiAudio, but found it. Think it's pretty similar.
So what those apps do is they let you connect to your android via LAN (WiFi in most cases unless u got ethernet cable in your phone) and they let you transmit sound to your phone. It's pretty simple and straightforward. The drawback is audio delay, which increases with buffer size. But good video player like MPC let's us change audio delay so we can make it play faster than video to compensate for that, takes a little time to figure out the delay tho.
SO we wanted to try it over usb cable, maybe it'd reduce/eliminate the delay heh. (it doesn't) That's how we found this post and we got kinda stumbled on "enabling USB Networking". Tried to look it up, read wiki and all. Turns out it's called USB Tethering in android, which is located in Portable Hotspot section. After enabling that - it adds a network on the PC, provided it's connected via usb cable ofc. Turned off all networking on android (WiFi, mobile) And it works. Though had to type in IP manually.
So now it can be used as a usb sound card without WiFi or anything. Still has a delay tho.
upd: Using a usb cable allows to reduce buffer size to minimum without getting any stutter leading essentially to no noticeable delay. Which is great.

OTG / Hi-Fi Plus on H850

Hello,
My question is quite specific, but I am currently running RR 5.8.4 (20170914) and I noticed that OTG has never worked for me (although it works when in TWRP)
I never minded so forgot about it, but I recently got hold of the Hi-Fi Plus cheaply only (£35) and wanted to try it out. As it turns out, it doesn't work and I was wondering whether;
Is this a kernel issue - can I flash an appropriate kernel to get OTG (and hopefully Hi-Fi plus support)
Or, is this just due to the Rom - should I flash a stock rom (e.g fulmics?)
Thanks!
*I have edited the Title as some of the information has changed based on my research, see my replies below*
Just as a follow up to this - I just flashed Fulmics and it still doens't work. I wonder if they only work on completely stock Rom. I will flash back to stock and update accordingly.
I also will try out OTG to see if that works.
OTG on Fulmics also doesn't work (if anyone is interested).
I hope I am doing something wrong here because it would be great to get this going
chalima said:
OTG on Fulmics also doesn't work (if anyone is interested).
I hope I am doing something wrong here because it would be great to get this going
Click to expand...
Click to collapse
Can confirm the Hi-Fi module works on Fulmics, both internally and as an OTG device. If you're using it via OTG, I recommend USB Audio Player PRO. Their custom USB device stack works a lot better than Android's default USB audio device support. Arguably works better than using the Hi-Fi module connected directly to the phone via LG's own apps.
-edited to add: If you're using the Hi-Fi module via OTG or even connected to a PC, make sure you have headphones plugged in. For some reason, the device shuts off entirely and is not recognised unless this is the case.
epithetic said:
Can confirm the Hi-Fi module works on Fulmics, both internally and as an OTG device. If you're using it via OTG, I recommend USB Audio Player PRO. Their custom USB device stack works a lot better than Android's default USB audio device support. Arguably works better than using the Hi-Fi module connected directly to the phone via LG's own apps.
-edited to add: If you're using the Hi-Fi module via OTG or even connected to a PC, make sure you have headphones plugged in. For some reason, the device shuts off entirely and is not recognised unless this is the case.
Click to expand...
Click to collapse
Thanks. I am surprised by this - I went right back to stock (20K) and it still doesn't work for me (even with headphones plugged in). I wonder if there is something I have missed - I have no OTG support on any of the ROMs I have tried (Fulmics, RR and Stock (20K)
I thought the process would be easier - I expected to be able to listen to Spotify with the DAC - is this the case?
I have taken my phone completely back to stock, (H85020g_00_VMC_GB_OP_0703) and plugged in the Hi-Fi plus and it still doesnt work:
The "Friends" app detects the the Hi-Fi Plus
the 32 Bit DAC settings item is greyed out
I plugged in two different types of headphones
I am now at a bit of a loss as I still don't understand why OTG doesn't seem to be working either (obviously related), so the wider question is, why?
I tested out OTG on TWRP and it works, and I tested the cable I purchased on a Huawei P9 and it also works so I dont think it is the cable.
For reference, the OTG cable I have is this:
https://www.amazon.co.uk/gp/product/B01COOQIKU/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Any assistance would be greatly appreciated! Should I just return the phone and get a new one?
chalima said:
Any assistance would be greatly appreciated! Should I just return the phone and get a new one?
Click to expand...
Click to collapse
Does it play music through the Hi-Fi module at all when you plug in earphones? The stock ROM specific things (like the little Hi-Fi symbol in the notification bar) don't work with it attached as a USB device, it is just picked up as an Android USB audio device.
The cable might also be a factor (although yours looks like it should work); I've found the module to be picky with what will and won't work. Attempting to use the short USB C -> micro USB cable included with the Hi-Fi module (with a micro USB -> USB C OTG adapter, of course) for instance did not work for me.
epithetic said:
Does it play music through the Hi-Fi module at all when you plug in earphones? The stock ROM specific things (like the little Hi-Fi symbol in the notification bar) don't work with it attached as a USB device, it is just picked up as an Android USB audio device.
The cable might also be a factor (although yours looks like it should work); I've found the module to be picky with what will and won't work. Attempting to use the short USB C -> micro USB cable included with the Hi-Fi module (with a micro USB -> USB C OTG adapter, of course) for instance did not work for me.
Click to expand...
Click to collapse
Hi,
No it doesn't play music through the module, it just plays out of the speaker. If I put the headphones in the top of the phone, then it plays from there, but not from the bottom.
I think there is some issue with OTG, rather than the Hi-Fi module as it works fine when I plug it into a computer. I don't really know how I can diagnose it further. I have verified that OTG works in TWRP (and with other devices) so the cable seems fine. I'm not really sure how to proceed from there.
Thanks,
Charlie
The same thing happens to me in my g5 h860n. I have tried different firmware versions and the problem remains the same. Does anyone have an idea that I should try?
Hello! I have the same trouble. Lg G5 H850 GBR, V20v-EUR-XX, unlocked bootloader, root Magisk, stock ROM and kernel. HiFi plus recognized when direct plug into the phone (not tested with OTG-cable) , but, as was writed by Chalima, it doesn't play music through the module, it just plays out of the speaker. If I put the headphones in the top of the phone, then it plays from there, but not from the bottom. Does anybody know, this trouble of hardware, software, or a HiFi plus?
You probably checked this, but I say it anyway:
Developer options/media/USB audio routing ??
Don't disable this.....
Yes, I try with enable and disable this - not working. Also in prog Device Info HW in USB tab I see nothing.

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