yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] ztbishop:
Behringer UCA202 issues:

No longer have voice input since connecting this. Can anybody else who uses this DAC still use their microphone?

Phone still works with the built in Mic, since the phone / radio ignore the USB DAC.

**EDIT**

-I found the reason for this. I did a complete firmware restore and factory reset and the mic input worked again while using a DAC. May 25 firmware and I actually didn't need to install the USBDAC folder.

I THINK the cause of this was the mod to allow volume control knob to work on the DAC. I have not installed this mod yet, as the built in mic is working again. Can anybody else confirm if they have the volume knob mod installed and can still use the built in mic while using USB audio out? If not, I'm just going to install in-line volume knobs out from the DAC.

**EDIT**

Alpine KTP-445U is cheap, fits in small spaces (glove box), and has all the wires needed. I recently modified this response to tell you NOT to use it due to loud feedback noises, even after running the power / ground straight to the battery. Turns out it is just crappy Ford car wiring that caused this. I had to ground the JOYING with a new ground wire instead of going through my factory Harness, and the issue is resolved. Before that, the noise was unbearable when going through the Alpine. I blamed the amp at first since I had no noise when running speakers straight from the Head Unit. I guess the voltage from the badly grounded Joying was picked up by the Alpine. Anywho - I can say now that it's a decent amp and sounds like what you're looking for. It's 4 channel but can be ran at 2 channel (this is how I run the DAC to it.) This amp does get pretty toasty but my glove box has an opening into the dash so it should get plenty of air space.

----

I've been fighting the two issues above for more nights than I care to remember so I'm going to try and sleep now. :)
[Android Head-Units] kampfschachtel:
with 25May Firmware your DAC and your volume works without the the USB out mod and without the volume knob mod=USBDAC folder installed? if yes why do you wanna install some mod if already everything is working? May 25th is Android 6 so game changes....

I am still on 14 March with 5.1.1 and will stay with 5. I made USB mod and USBDAC Folder install. My Mic works...and volume mod too.

But I have the issue that in the settings menu the adjustment of the volume for the different sources (NAVI, AUX in, BT audio...) doesn't work anymore. When using google maps and setting is on voice is on lowest="softer" it is still too loud and I cannot adjust it anymore. Does this work with May25 and DAC without mod?
[Android Head-Units] kampfschachtel:
Installed and steering wheel keys working again. Thank you.

I did extensiv testing with DAC mod (with 51.1. and 3/14/2017 Firmware) and due to my DSP I can switch between USB/DAC Digital out and RCA(=Chinch analog out) with a touch of a button:

BT Phone and FM Radio works via RCA analog out with USB out mod and while DAC is connected

=> solved BT Phone for me, not using it anymore. I go directly into the DSP with the OEM AUDI BT Phone audio out and DSP mutes sound if a call comes in or is done. Mic, Audio out and BT connection is used from OEM AUDI BT handsfree box. Just need to setup tablet talk as remote for my phone, cannot find his guide to set up tablet talk for voice calls.

DAC mods changes on the 10.1 Universal Radio (precise model see signature) with 3/14/2017 firmware:

before: volume via touchscreen slider or steering wheel or touchbuttons of screen with 0-34 volume click, means 34 volume clicks

now: volume only via steering wheel or touchbuttons (slider only comes up when changing volume) with 0-12 volume click, means 12 volume click=> very/too rough, if I wanna reach max volume (my amp needs around 3V per channel) the first two step from 0 to 2 is already near backround music level.

AUX in of joying only works via RCA analog, not via USB/DAC out

not working or not properly working (assume all have to do with volume mod):

- volume setting for the different input sources (BT audio, navi, Aux, radio etc.) in the car setting menu doesn't work, so no regulation of the different levels possible

- BT audio doesn't work at all, not via USB and not via RCA/Chinch out

- Easy connect has no sound via phone => only spotify works but in the spotify connect mode, spotify directly on the phone via easy connect no sound

- google maps: voice directions is by far to loud on voice setting "softer" and voice setting in maps only allows "softer/normal/loud", I GO navi app has a volume slider which works as should but I mostly use google maps with offline map downloaded.

- at each start up=boot (I don't use dormacy mode) a ping/alarm sound come through with full volume when boot is finish (how can I shut this off?)

will test and report in the next days with volume mod off (delete the USB DAC folder) and master volume via my dsp if there are any changes to the above.
[Android Head-Units] georgebest:
The 14 March firmware is better that the end of March one??

AND what MCU update does?
[Android Head-Units] kampfschachtel:
My joying is "hanging" in the boot animation and throws the lovely "cannot ent system UI many times" and shuts off.

How can I fix this???

I am on the 14th March update and wanna keep 5.1.

Didn't do anything with the radio, it played fine. Had it disconnected, also the battery power itself as I was just performing the final install and routing cables, installing DSP and put interior back together. THen connect battery back on and the joying showed this behaviour...
[Android Head-Units] surfer63:
The only way to fix this is to flash it again with the 14 March update.

Put it on a USB key, put a needle in the reset hole for 3-6 seconds, and the unit will reinstall.
[Android Head-Units] kampfschachtel:
Thank you surfer63...

If I need to flash anyhow, update to Android 6 would be an option...or still wait? Release 28 May seems to be best, true?

How is the Android 6 performing regarding audio topics?

Read it support USB Dac. So the volume control works without mod. Can you adapt the volume of the different input sources in the car setting (like radio, BT audio, Mac)?

Doesn't work with 5.1 and USB mod, main reason I would change to 6 if this works...google maps voice is screaming on softer, the lowest volume option and for ixia bug there a fix too. All mods are available for 6 too.

Anything that should keep me away from 6?
[Android Head-Units] surfer63:
The 6.0.1 as such is now stable enough. Applying mods does not always work.

I have no idea about the audio stuff as I'm really not interested in that.

AssassinsLament did not upgrade the SofiaServer to the latest USBDAC mods yet. His mods are either at the 08 or 12 May version. I'm not sure.

By creating diffs between AssassinsLament 6.1 versions and the 6.3 Gustden versions, it should not be too difficult to create new V6.3 USBDAC versions.

(Note that due to personal circumstances AssassinsLament hardly participates at the moment. Hopefully he will be back in a few weeks).
[Android Head-Units] rotorocks:
I install an external audio device to the AUX ports on the back of the HU.

Is there a way to hear the audio signal from AUX during Navigation or simply on the Home screen?

Gesendet von meinem SM-T825 mit Tapatalk
[Android Head-Units] kampfschachtel:
Done that. Unit starts installing and shows the android guy BUT after 5mm in the progress bar it stops and shut off without any error...

The same 3 times, with 28 March firmware (upgrade at the same Time) and 14 March current.

What to Do now???
[Android Head-Units] currahee:
is it possible to install Dolby atmos on Joying?
[Android Head-Units] kampfschachtel:
No and it makes no sense acoustically either. From room volume, distances and room height of the cabin Dolby Digital 5.1 need to be used.

Joying just supports stereo and also digitally via USB out it is a PCM stereo signal with 16bit/44 or 48Khz.

you can install viper4 android, and you can download a DolbyDigital 5.1 plug in for it that simulates the 5.1 very well. look for the post in this thread from AssassinsLament, where he describes the settings for viper too.
[Android Head-Units] kampfschachtel:
Can somebody who is on Android 6 and using a USB DAC please try the following and report:

Can you adapt the volume of the different input sources in the car setting (like radio, BT audio, Mac) under volume setting (with code 3368) , do this adjustments have an effect means do they work?

Means eg I have the radio playing and the navigation directions comes up, so I can adjust in the car setting menu the volume of the radio and the navigation seperatly.

Read that Andorid 6 supporta USB Dac without mod. So I understand the volume control works without mod too, correct?

In 5.1.1 the above doesn't work (means the volume setting adjustments in the car setting menu have no effect at all) because of the volume mod needed, so eg in google maps the directions are played with very high volume which cannot be adjusted (already on softer in maps settings) lower due to the USB DAC volume mod.

My unit is bricked at the moment and needs a complete new install and only reason I would switch to Andoid 6 is if the above is working. Everything else works in 5.1.1 like I want, just this one thing not.
[Android Head-Units] Dutch3raser:
Hello guys,

I just finished installing my sound and I notice a small constant beep in the sound when not playing any sound.

When muting the device; the beep stops. I've tried it with an USB DAC on a PC separately where this didn't occur.

When I lower the amplifier's gain the beep gets softer too. On my old speakers I didn't notice this sound either (also with the amp).

Do you guys have this sound too when amplifying the Joying unit?

Greetings,

D3
[Android Head-Units] frankienones:
Yes,had the same issue..using pre outs.

That is one of the reason i choose the DAC route
[Android Head-Units] PsychoMcSatan:
I'm using pre-outs to an external amp, but no beep or any other noise. I did have buzzing initially that seemed to correspond to CPU activity (like dragging windows around) but that was fixed with ground loop isolator.

I don't think ground loop is your issue though, as it wouldn't be stopped by muting.
[Android Head-Units] Dutch3raser:
I forgot to check replies, sorry guys for the late response.

I noticed with my Hewlett Packard DAC (quite old one) that the sound wasn't so bright. Is that better on the DACs mentioned in the main post?

They aren't expensive either so I'm really thinking it would be a good choice.

I first had problems with ground loop (then amp didn't work at all) and fixed. But I will just check it again just to be sure :)
[Android Head-Units] Adibee:
Hi All,

I was able to install the surfer63's BusyBox and the Viper4Android into my Sofia 6.01 unit. Seems like Vipe4android is working under the PhoneSpeakertab and not the Headset tab like the person that uploaded a video of it. (Drive status shows Processing=Yes). But the problem is when I try to add the equalizers the music starts getting the distorted. Is this due to the wrong Busybox. If so can someone please walk me through on how to install the busybox that AssassinsLament has uploaded since it's not an actual apk file?
[Android Head-Units] edit:
The EQ section from Viper does not work with Joying Intel Sofia Android 6. There is no solution to fix the problem.

I was the only one complaining about the issue so I assume that very few people use Viper around here.
[Android Head-Units] surfer63:
The first script of AssassinsLament needed an updated busybox for the install. The busybox delivered with the Joyings is limited.

If you install viper4android via my apk you don't need busybox.

So again: busybox was only needed for the install! It has nothing to do with the functioning (or not) of viper4android itself.

And for the rest: [MENTION=309187]edit[/MENTION] is right.
[Android Head-Units] Adibee:
Ah I see that makes sense. Great job on that app man. I cam across that when I did a search abt busybox and Joying. It's a powerful tool and I love it :D. It's a bummer that I can't use Viper4Android but I am planning to add Subs and Amp for my car anyway so I guess I won't be needing Viper4Android.

You guys rock!
[Android Head-Units] mwhelan182:
Help! =(

Hi! I'm not sure if this is the right place to post it, but from what I can tell, this is probably the best place to ask..

I had a joying unit installed over the weekend (JY-VM130N2 in a 2006 golf gti)

And with a few kinks and settings played with, it seemed to work well.

However after I connected to wifi and some apps updated and installed (trying out Android auto, etc) it seems that the volume no longer works.

The knob turns, and when it does the indicator on the screen goes from 0 (mute, which works) then 1 (which sound comes on) all the way up to 36.

However the sound level at 1 is the same as the level at 36..

I can control the volume through my phone when playing through Bluetooth, however it is hardly loud enough.

I tried a factory reset which didn't fix anything, and the help forum for Joying wasn't helpful. I found this thread, and to be completely honest, I have no idea what a lot of it means, but I have a good history with android phones, and am hoping that there is a solution to this, as googling for the past day has lead me here.

Any help or point in the right direction would be awesome.

Thanks everyone

Mike
[Android Head-Units] luciusfox:
Have you tried resetting it with a toothpick in the little hole on the front? As strange as that sounds, it could actually make a difference if the problem is in the MCU's volatile memory.

What exactly is everything you did to adjust the thing?
[Android Head-Units] ziofester70:
What protocol have you tried in car settings?

Try box company: RZC

Car System: Volkswagen

Model selection: All

Protocol box: RZC.XP(L)

Password 3368

Let me know if works.
[Android Head-Units] mwhelan182:
Bloody life saver! It worked a charm!

I owe you a drink mate!
[Android Head-Units] james272:
Hi

i bought joying 10 inch head unit( http://s.aliexpress.com/VfErUvyi ) and installed power amp (https://www.pioneerelectronics.com/PUSA/Car/Subwoofers/Powered+Subwoofer/TS-WX120A) also bought usb dac http://www.ebay.com/itm/PCM2704-USB...Card-Decoder-Board-Aluminum-case/171822774894 and i changed TDA 7380 to TDA 7850 chip after that i feel sound improved but i have no idea how i can install USB DAC into my car.

this is backside of joying .

https://drive.google.com/file/d/0B17dp6Nz4OuGRS1iOXJjQnk3VkE/view?usp=sharing

i can guess joying usb cable to connect to socket of usb dac but this usb dac product only one coacial input so how to connect to joying?

also if i changed to tda 7850 i don't need to install usb dac? or if i install usb dac i can feel more improved sound quality?

i went car center but they don't know about usb dac :(

thanks in advance! pls help me
[Android Head-Units] Scarecrow1982:
Hello,

i would like to buy a joying device (9 inch for VW) and then the music digitally transferred to my Mosconi 6to8. Is there a chance to get started when I use this DDC Converter:

U2S (USB to S/PDIF Interface Audio Converter COA/OPT HA info PCM/AC3/DTS 24bit/192kHz)

I would like but then gladly the volume is adjusted by a RCA cable analogous. The MOS 6to8 can do that yes. Does it work?

Do I really have to install a mod, or does it work with the ROM synonymous?

I have read somewhere which supports the ROM of Joying DAC.

I had already bought another radio from A-Sure and tested it.

When I connected the converter, suddenly the music from the USB stick stopped. Music from the radio was still played. What does that mean?

Should I now buy a current device from Joying, or rather wait for the series with PX5 chip?

Thanks for the feedback
[Android Head-Units] arshish1612:
Hi,

I have the following:

1. Android Nugat based PX3 2GB with MTCD_MX_V2.56b_1.

2. Helix Sound Processor DSP.2 (not the PRO) without the USB AUDIO expansion card

3. Focal amp to power my speakers.

What do I need to do to have ALL audio routed over USB (RADIO / Google Music/ Telephone / everything):

1. Do I need to make these MODS?

2. Will these mods work with Android Nugat based PX3 2GB with MTCD_MX_V2.56b_1

3. OPTION 1 - Should I buy the HELIX USB expansion card - I will need a very long USB cable going from the HU to the boot of the car

4. OPTION 2 - Get the Behringer UCA202 Audio Interface and convert USB to OPTICAL SPIDF which will run to the HELIX. (Helix has an optical IN)

I would like to use the Head unit volume control rather than the volume controller that comes with the HELIX. I like to keep it clean.

Thanks in advance.

Arshish
[Android Head-Units] arshish1612:
Ok... I just tried connecting the Behringer UCA202 to the use and connected a set of headphones. No audio and the head unit continues passing the audio to the speaker wires.

So can someone confirm.if the mods at the start of this thread will work for Android 7.1.2? I'm currently struggling to root the HU.
[Android Head-Units] arshish1612:
Ok. Made some progress. Using the Onkyo HF player I can get an MP3 file to play via usb audio and the Behringer DAC. So I guess now I have to try to root and update the policy file.

Any suggestions on how to root px3 2gb Nougat?
[Android Head-Units] arshish1612:
Hi,

I know this is for Sofia chipset but can the USB all audio with volume control mod also work with Rockchip PX3 Nougat?

Arshish
[Android Head-Units] surfer63:
As it is only the "audio_policy.conf" file, that might work indeed on your system. Just verify the contents of the file on your system and from the forum.
[Android Head-Units] arshish1612:
I have the Helix DSP (not pro) which already has a spidf in. Should I get the USB extension module for the Helix or should I get a USB to spidf converter and feed the HELIX via SPIDF?

Is my understanding correct that if I go the SPIDF route I can retain the head unit volume control (and not need to use the Helix external volume controller)?
[Android Head-Units] kampfschachtel:
I would get the extension module of the helix, quality is better

Doesn't matter if you go Spdif or USB route you will loose the volume control. To recover it partly you can use the the volume button mod.

I would try to connect RCA output and USB out in parallel to check which gives you the best sound. I done that.

result for me, I can't hear a difference at any input source of the joying. This is with Viper perfectly adjusted and the 6021 head unit. There is a huge improvement over the 5009. Had that before and was replaced due to defects. I only hear a difference with my IPad via OTG cable directly into DSP with hires music perfectly recorded, use that for demo purposes.
[Android Head-Units] kampfschachtel:
I am relocating a yacht from Italy to Maui Hawaii to take some time off and will therefore not be present here/means eg answering/updating this thread from today till approx End Nov. /Mid Dec. 2017

My conclusion so far is if you have a joying 6021 unit, put on Viper and adjust it properly with additional surround sound Codecs and go via RCA out/in into an external DSP. You won't hear a difference as digital output limitation are androids 16bit/48hz limit and 6021 internal DSP is quite good with Viper and not worth all the hassle with volume, analog sources like radio etc.

On 5009 use USB to Spdif and go digital into DSP and use the DSP Volume on its remote. Here it's definitely worth it.

With Viper only modify the sound effects and cranck up volume capabilities EG limiter, output but No EQ. The frequency correction/timing should be done in your external DSP. If you have Mercedes S class or a rolce royce and wanna hear jazz or classic in 384khz/32bit get a used iPhone 5s and go directly via OTG cable into DSP. Apple is unbeatable till now on the audio capabilities, Android sucks here and is the wrong route when you want real high end. But you can do both parallel a big screen android for all everyday purposes and a 150$ used iPhone 5s for the rare occasions of true and well recorded hires songs. Be aware that 90% of hires music out there is fake means just upsampled DVD/blue ray quality means you won't be hearing a difference, just a hype people make money on for the ones who hear the grass grow. and only 10% is real and very well recorded and quite expensive, mostly jazz and classic stuff.

This tested with a modified 8000$ B&O 14 channel full active stereo system in my Audi R8.

See you in 2-3month, please keep on working and trying out, I will go through here and updating first page summary when I am back.
[Android Head-Units] jerrek71:
Popping and Clicking when silence encountered

Hi there,

Love the Joying I bought a couple of weeks ago, except for one problem I still haven't managed to iron out. (Thanks to the other threads for the Bluetooth Tethering and NoKill and all that good stuff!)

I'm running a UM135N2D which has the Digital Amp. I note, after purchasing, that Joying state do not use any external amp, but I'm in a Saab 9-3 (2008 Aero if it makes a difference) which has an external amp. I've installed a 'drop down' resistor pack from Connects2 inline via the ISO connector which has reduced the inputs to the amp to a sensible level and everything works well except;

The Digital Amp has 'Silence Detection' and mutes the device when the sound level falls below a certain (configurable) level. I've set this to be -60db which is the lowest it will go - which has helped the problem. But when the device mutes due to this silence detection, the speakers click. And again when it unmutes they click again. It's very annoying.

I don't believe it's related to the Amp power line as switching the Amp power on and off (using the toggle on the menu) does not produce the same click, and physically removing or adding power to the Amp control wire does not produce any click either. I really think it's the Digital Amp in the unit causing this clicking.

Joying have been no help, they can't seem to understand what I'm talking about.

Anyone have any idea how to stop the device from muting when it detects silence? I have the problem in the radio, Deezer or phone so I know it's system level not application level.

Any help greatly appreciated!

TIA,

Steve.