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I've been through a few Android head units over the years and while they continue to improve, there still seems to be a few shortcomings. I am hoping someone can direct me to a solution (universal) that can do the following:
1. Parrot BT (I have tried other units but only Parrot units have been acceptable)
2. Digital output (SPDIF or HDMI) so I don't have to mess with any chipset-based DAC and get straight digital signal into my external high-end DAC.
3. Android 6.0 or newer
Thanks in advance!
esounds said:
I've been through a few Android head units over the years and while they continue to improve, there still seems to be a few shortcomings. I am hoping someone can direct me to a solution (universal) that can do the following:
1. Parrot BT (I have tried other units but only Parrot units have been acceptable)
2. Digital output (SPDIF or HDMI) so I don't have to mess with any chipset-based DAC and get straight digital signal into my external high-end DAC.
3. Android 6.0 or newer
Thanks in advance!
Click to expand...
Click to collapse
1. Not entirely, most have the inbuilt, generics).
2. Nope. A few people have attempted to use external usb DAC's, but unsure how that would work for your setup.. but the android head unit wont give you good sound for your high end DAC
3. Yes, most of the companies are coming out with 6.0, and even 7.
A simple "nope does not exist yet" would have sufficed. <smile>
Regarding #2, that's the same thing as going iPad to external DAC where the signal remains digital through the head unit so you really are not subjected to the awful internal digital conversion and low voltage RCA outputs.
esounds said:
A simple "nope does not exist yet" would have sufficed. <smile>
Regarding #2, that's the same thing as going iPad to external DAC where the signal remains digital through the head unit so you really are not subjected to the awful internal digital conversion and low voltage RCA outputs.
Click to expand...
Click to collapse
Yes. :good:
Hi all. Id thought Id start another thread regarding the SQ of this device.
Iv always used Alpine Head Units for last 20 years but bit the bullet and bought this device to try and bring my ICE into the future a bit.
My system is HU - RCA's - C-DSP6x8 - RCA's - 3xJL amps - Focal Utopias (6w2/TN51)/2x JL ZR800's/1x JL 13W3
+ a shed load of experience with Room EQ wizard and at least 2 years of my life I won't get back!
In comparison I can say the SQ of the pumpkin sucks, also a bit of ground noise I never had before.
Will a USB DAC work with this unit?
Which one? I read a thread where someone used a USB to SPDIF converter board with Texas instruments chip on board, very simple which is good and cost less than a tenner from Amazon! then there's dragonfly dongles, then there's miniDSP's MiniDAC8. Price range between £10 & £200
Also I was always under the impression if you use a digital signal from your source unit you cannot control the volume from that source unit as bits and bytes cannot be attenuated so the volume control would be from the DSP(via the wired remote)
Can anyone suggest a tried and tested setup for getting a clean signal from this source to my DSP that wont break the bank, (Bit One out of the question) I think Iv spent enough on my system now as its probably worth more than my car! (B7 audi a4 3.0tdi)
Thanks
ps I am a complete Android programming noob but can learn with a bit of help
from Lollipop there is dac native support on all devices, so it should work.
in joying headunit the radio and bluetooth not work with the dac, u can add small speaker for the bt, or connect another rca pair to the sound processor if the pumpkin also suffer this problem.
i recommend the hifimediy, be aware that spdif its digital connection so its really not important which dac u choose , the conversion from analog to digital will process on your c-dsp
u can see dac support here:
http://www.extreamsd.com/index.php/technology/usb-audio-driver
Hi and thanks for reply. I looked at the DAC you use and read through that link. Another good thing about the external DAC is any analogue ground noise from the device should be isolated. There is ground noise on this units RCA outputs (to be expected on a device in this price range) once you rig up the bluetooth/radio via rca's anywhere into the chain that noise will be re-introduced. I'm not sure there's a way round this issue but its a minor one.
The HiFimeDIY also has spdif out so if connecting to my DSP with digital coax I assume the volume pot wouldn't work? Not a problem since any DAC will have it own analogue volume control I can use the master volume (after DSP). Still if I connected BT/radio via RCA that volume would be controlled by the device. Unless somehow I set everything up for max volume and use just the master to control everything. I have a lot more learning experimenting ahead!
This could be a deal breaker:- Will spotify ouput be routed through the DAC?
mamba76 said:
Hi and thanks for reply. I looked at the DAC you use and read through that link. Another good thing about the external DAC is any analogue ground noise from the device should be isolated. There is ground noise on this units RCA outputs (to be expected on a device in this price range) once you rig up the bluetooth/radio via rca's anywhere into the chain that noise will be re-introduced. I'm not sure there's a way round this issue but its a minor one.
The HiFimeDIY also has spdif out so if connecting to my DSP with digital coax I assume the volume pot wouldn't work? Not a problem since any DAC will have it own analogue volume control I can use the master volume (after DSP). Still if I connected BT/radio via RCA that volume would be controlled by the device. Unless somehow I set everything up for max volume and use just the master to control everything. I have a lot more learning experimenting ahead!
This could be a deal breaker:- Will spotify ouput be routed through the DAC?
Click to expand...
Click to collapse
Yes it will.
Thx GTX its got be worth pursuing then
The model of my unit is AE0273B on autopumpkin. Does anyone know for sure that BT/radio/DAB wouldn't be routed through a USB DAC? Would be interesting to know why?
Should I be looking to root this so I can have Viper4Android installed or Neutron player? I just want to unlock the potential for quality audio out, I dont need to tweek the signal or colour it I would like the output flat but a good PEQ app would be helpful.
Using a multimeter and oscilloscope I swept a pure 0db sine wave through the Alpine and the AC voltage from the pre-out only deviated by about 0.01vac from 30hz upto 10k then it climbed a bit more. Done same thing on the Pumpkin and highest unclipped Vac is 1.2vac at 1khz, at 30hz it dropped to 0.5v and same with higher frequencies, just like a sad smile lol. I want a DAC with a flat frequency response and a 4volt pre-out.
The floor noise / ground noise was made worse because I had to increase input gain cos of the crappy pre-outs.
I could do with some help customizing this for quality audio so if anyone's in the same boat and wants to trade ideas Im open to test things on my device and help out where I can.
what apps & DAC's work for you? digital or analogue cabling? What DSPs? Anything regarding SQ is interesting to me
I think Iv taken one step forward and 2 steps back but I'm committed now lol.
Just found and read through this thread - https://forum.xda-developers.com/an...io-problems-discussion-thread-t3657637/page11
Aluver seems to be able to fix this issue.
The pumpkin is still a great bit of kit for the price and to be fair I used the buggy built in amplifier app to adjust the eq to a V shape, pulling down 1khz (in the middle)as the lowest point (-6db) and as no surprise I think this has cured the problem this HU caused with the SQ. At low volume my target curve in REW appeared the same its only at high volume when the pre-amp output deviations are at their most extreme (sad smile) which is why it sounded too harsh.
Im really not sure if I would be able to tell the difference from a 100% digital system with high quality DAC and my old alpine setup but it does solve a few problems.
Still have excessive ground noise and amp pop when ignition turned off (never had before) so not sure if Ill be keeping this unit, so maybe up for UK sale in near future!
Really interesting thread, are you planning to buy the DAC finally ? It would be interesting to try a DAC, just to get rid of the ground noise for example.
Seeing your setup, if the source has crappy output you will hear it right away so your EQ modification is quite surprising that it improves the quality that much ! I'm still thinking about pulling the trigger on a model similar as you but very afraid of sound quality. Still trying to decide between Joying Intel or Xtrons PX5
Im going to give it a bit more time to see if I can get it to behave. Iv has this set up with the alpine for a couple of years and am always tweaking / improving so Im very aware of any change. If it hurts your ears at high volume then somethings wrong. The alpine's FR was completely flat and clips just over 2v, the pumpkin clips at different voltages (max 1.3v) but on this unit anything above vol 20 with pure tones will clip, its just a pain in the ass but if you always eq your car with high volume in mind for me that's where it matters. Dont rely on tone generator apps their 0db is not accurate I burnt the test wave files from JL audio website to CD as a reference then match it with Room EQs generator so can sweep any frequency.
Yeah Im gonna look for a DAC would be nice if you could control the DACs volume from steering wheel! And the auto switching rca's it doable or might as well go digital to dsp not sure yet its all a bit of a headache lol, but the units capabilities makes it worth trying. I will post any solutions on here if I find them but may be some time.
Im still trying to work out what this unit gives me that an alpine ilx-f903 (or similar) won't, apart from alot of spare change!
Im sure Iv read pros and cons for either them units but don't know enough about whats inside. I know mines a px5. I would be looking for something that can output everything through USB but not sure it exists.
ordered a minidsp usb streamer from amazon £60 delivered +van damme digi cable. First step see what it does out of the box then install 'USB Audio Driver Pro' app which will bypass the native android drivers??
I think this requires usb debugging mode to be enabled in developer options.
I found a switching module that might come in handy - https://www.tindie.com/products/Beni_Skate/automatic-spdif-opticalrca-audio-switch/#product-reviews
If anyone understands what Im trying to do and can foresee what needs to be done regarding operating system changes I would definately appreciate any advice as Iv no experience at all with the programming side of things i.e changing audio policies, etc...
I should be playing with this again at weekend if all the bits arrive
RoNeReR said:
from Lollipop there is dac native support on all devices, so it should work.
in joying headunit the radio and bluetooth not work with the dac, u can add small speaker for the bt, or connect another rca pair to the sound processor if the pumpkin also suffer this problem.
i recommend the hifimediy, be aware that spdif its digital connection so its really not important which dac u choose , the conversion from analog to digital will process on your c-dsp
u can see dac support here:
http://www.extreamsd.com/index.php/technology/usb-audio-driver
Click to expand...
Click to collapse
Hi RoNeReR. I see your usb dac outputs on analogue rca's. Do you still control the volume from the pumpkin?
Thx
Well as promised I will update this thread with my progress to get my system setup with the pumpkin.
I got my mini streamer but digi cable not arrived yet.
So I enabled developer options which was easy but couldn't find the menu anywhere afterwards, eventually downloaded an app call 'developer options' which does what is says on the tin. I found usb debugging mode was already on then went to 'usb configuration' and set to 'Audio'. Plugged in my ministream and was expecting the audio from spotify to go quiet as is should now be trying to route through the streamer but it didn't appear to change anything. I get a feeling when I eventually get the cable and connect to the dsp I will still have nothing. Anyone know what else I need to do to make audio goes through USB? ASIO drivers?
As I said Iv no experience with android OS but Im learning more and more things, so happy days!
mamba76 said:
Well as promised I will update this thread with my progress to get my system setup with the pumpkin.
I got my mini streamer but digi cable not arrived yet.
So I enabled developer options which was easy but couldn't find the menu anywhere afterwards, eventually downloaded an app call 'developer options' which does what is says on the tin. I found usb debugging mode was already on then went to 'usb configuration' and set to 'Audio'. Plugged in my ministream and was expecting the audio from spotify to go quiet as is should now be trying to route through the streamer but it didn't appear to change anything. I get a feeling when I eventually get the cable and connect to the dsp I will still have nothing. Anyone know what else I need to do to make audio goes through USB? ASIO drivers?
As I said Iv no experience with android OS but Im learning more and more things, so happy days!
Click to expand...
Click to collapse
The problem is the software and hardware combination needs modifications (software) to generally work. We have this working on the joying Intel, and hopefully soon on the joying px5 (FYT based) units. Nother brands might not be possible depending on the original manufacturers programming.
If other users with your unit, maybe they have experience. Generally only working on the joying with Xposed properly.
gtxaspec said:
The problem is the software and hardware combination needs modifications (software) to generally work. We have this working on the joying Intel, and hopefully soon on the joying px5 (FYT based) units. Nother brands might not be possible depending on the original manufacturers programming.
If other users with your unit, maybe they have experience. Generally only working on the joying with Xposed properly.
Click to expand...
Click to collapse
I see. I read a post where 'Aluver' says he got usb output working on app media and usb fobs but not on BT/radio/DAB (which went throught the MCU instead of DAC?) so assumed it was doable with a few changes to audio policy. Thinking about it not sure if the thread was referring to my HW/SW. Ill read the thread again but got lost in the jargen which I half understand.
So it looks like I'm just gonna have to wait till someone works out a fix.
So PX5 is the hardware and Oreo the software. Whats FYT based? Can this unit be rooted easily yet?
Thanks
mamba76 said:
I see. I read a post where 'Aluver' says he got usb output working on app media and usb fobs but not on BT/radio/DAB (which went throught the MCU instead of DAC?) so assumed it was doable with a few changes to audio policy. Thinking about it not sure if the thread was referring to my HW/SW. Ill read the thread again but got lost in the jargen which I half understand.
So it looks like I'm just gonna have to wait till someone works out a fix.
So PX5 is the hardware and Oreo the software. Whats FYT based? Can this unit be rooted easily yet?
Thanks
Click to expand...
Click to collapse
Are there any car android devices out there, chinese or otherwise, that allow for routing ALL audio digitally?
Any HW/SW setups know to work?
What about the latest 'NewsMy NR3001'?
mamba76 said:
I see. I read a post where 'Aluver' says he got usb output working on app media and usb fobs but not on BT/radio/DAB (which went throught the MCU instead of DAC?) so assumed it was doable with a few changes to audio policy. Thinking about it not sure if the thread was referring to my HW/SW. Ill read the thread again but got lost in the jargen which I half understand.
So it looks like I'm just gonna have to wait till someone works out a fix.
So PX5 is the hardware and Oreo the software. Whats FYT based? Can this unit be rooted easily yet?
Thanks
Click to expand...
Click to collapse
FYT is the OEM manufacturer for the system on module (SoM) that powers certain head units (that contains the CPU and memory etc)
Px5 is the CPU made by rockchips.
gtxaspec said:
FYT is the OEM manufacturer for the system on module (SoM) that powers certain head units (that contains the CPU and memory etc)
Px5 is the CPU made by rockchips.
Click to expand...
Click to collapse
Whats the model of Joying intel you have working? I assume there is still the problem of bluetooth / voice & radio still not being routed through USB on this as well?
I connected my XP laptop to the ministreamer then to DSP (with vanne dam spdif coax) and played some flac files and it sounds great, noise floor is zero! Shame I cant find a device other than my phone to output a dam digital signal for everything!:crying:!
PS: Android 8 Oreo + all extras for sale... £200 anyone?? (comes with dabonwheels DAB external whip aerial, original in dustbin) Will drop in a B6 / B7 Audi A4 like factory does.
mamba76 said:
Whats the model of Joying intel you have working? I assume there is still the problem of bluetooth / voice & radio still not being routed through USB on this as well?
I connected my XP laptop to the ministreamer then to DSP (with vanne dam spdif coax) and played some flac files and it sounds great, noise floor is zero! Shame I cant find a device other than my phone to output a dam digital signal for everything!:crying:!
PS: Android 8 Oreo + all extras for sale... £200 anyone?? (comes with dabonwheels DAB external whip aerial, original in dustbin) Will drop in a B6 / B7 Audi A4 like factory does.
Click to expand...
Click to collapse
I have the joying Intel that fits into the b7 a4 as well. On their site, and yeah no radio or Bluetooth yet via dsp.
mamba76 said:
Whats the model of Joying intel you have working? I assume there is still the problem of bluetooth / voice & radio still not being routed through USB on this as well?
I connected my XP laptop to the ministreamer then to DSP (with vanne dam spdif coax) and played some flac files and it sounds great, noise floor is zero! Shame I cant find a device other than my phone to output a dam digital signal for everything!:crying:!
PS: Android 8 Oreo + all extras for sale... £200 anyone?? (comes with dabonwheels DAB external whip aerial, original in dustbin) Will drop in a B6 / B7 Audi A4 like factory does.
Click to expand...
Click to collapse
Oh too bad you can't even get the spotify output on the dac? Did you try another dac like hifimediy using optical cable?
gtxaspec said:
I have the joying Intel that fits into the b7 a4 as well. On their site, and yeah no radio or Bluetooth yet via dsp.
Click to expand...
Click to collapse
Thanks for the info gtx.. You know a hell of a lot more than me on these things. If you could suggest a head unit thats a safe bet for what Im trying to do Id appreciate any links / model numbers. I bet there's more than one joying intel out there and dont want to make the same mistake twice
Hypnox99 said:
Oh too bad you can't even get the spotify output on the dac? Did you try another dac like hifimediy using optical cable?
Click to expand...
Click to collapse
Hi. its not the dac thats the problem its that no one can get the output through the usb cable to start with. At least not yet but sure some very clever ppl on here will figure it out:fingers-crossed:
Hi Everyone,
As the title states, Has anyone got their 8227L working with a USB DAC? This head unit is not doing my poor Focal PS165's any justice, they deserve better sound quality! I've been trying to get my unit to work with a Behringer UCA202 USB DAC and I'm not having any luck. The unit is running a precompiled rooted rom from maybe march 2020? I found it on 4PDA. I've tried changing the USB settings to sound output in developer options. That did nothing. The unit won't automatically recognise the the DAC. I'm not even sure this is totally doable getting the DAC to play nicely with the MCU.
Any info is greatly appreciated!
hello everyone ! i am writing here hoping to find some help. recently i bought an Android Head Unit with 8227L, 2gb of ram and 16 storage. The "issue" is that there is an equalizer option in car settings in the "Sound Settings" menu but it is used only when listening to music by bluetooth, usb storage or on youtube. When trying to use spotify or youtube music, the sound is flat, it lacks bass. It's like it's ignoring the eq. I tried different versions of spotify in hope that it will have a built in eq. I looked in android setting in audio at audio enhancements but nothing is there. I will attach some pictures of the unit with different information that might be useful. Thank you in advance !
altaier91 said:
hello everyone ! i am writing here hoping to find some help. recently i bought an Android Head Unit with 8227L, 2gb of ram and 16 storage. The "issue" is that there is an equalizer option in car settings in the "Sound Settings" menu but it is used only when listening to music by bluetooth, usb storage or on youtube. When trying to use spotify or youtube music, the sound is flat, it lacks bass. It's like it's ignoring the eq. I tried different versions of spotify in hope that it will have a built in eq. I looked in android setting in audio at audio enhancements but nothing is there. I will attach some pictures of the unit with different information that might be useful. Thank you in advance !
Click to expand...
Click to collapse
Sorry to hear about your issues. Luckily, there is a solution and not just to this problem. Check out this guide:
[GUIDE] YT9216BJ !SUPERMOD! - ROOT, Viper4Android, TWRP, Custom UI, brick recovery and more
It does not look like the original rom. It says "OS: ANDROID 10.1" and build number is simply "ANDROID_TRUNK-p0" which I have never heard of.
iceblue1980 said:
Sorry to hear about your issues. Luckily, there is a solution and not just to this problem. Check out this guide:
[GUIDE] YT9216BJ !SUPERMOD! - ROOT, Viper4Android, TWRP, Custom UI, brick recovery and more
Click to expand...
Click to collapse
was reading this post a little... not quite sure how to make a backup... i saw some videos where someone opened the head unit and soldered some wires on some testpoints for the usb connection. do i need to do that also ?
Bob_Sanders said:
It does not look like the original rom. It says "OS: ANDROID 10.1" and build number is simply "ANDROID_TRUNK-p0" which I have never heard of.
Click to expand...
Click to collapse
yeah... best part is i was trying to read the android version using aida installed on the head unit and the app simply crashes.
altaier91 said:
was reading this post a little... not quite sure how to make a backup... i saw some videos where someone opened the head unit and soldered some wires on some testpoints for the usb connection. do i need to do that also ?
Click to expand...
Click to collapse
There are step-by-step instructions included into the guide. With links.
iceblue1980 said:
There are step-by-step instructions included into the guide. With links.
Click to expand...
Click to collapse
there is only a video that shows how to create the backup but it is for phone, nothing mentioned on how to connect the head unit to the pc, and not reffering to power. do i need to use the test points from brick recovery guide in order to create the backup ?
Edit: i saw something about connecting the usb to the 4 pin port, but do i need to use some sort of male to male usb cable ?
Second Edit: my head unit has physical buttons, i saw that the guide is mostly for units without physicial button. Is it safe ?
altaier91 said:
there is only a video that shows how to create the backup but it is for phone, nothing mentioned on how to connect the head unit to the pc, and not reffering to power. do i need to use the test points from brick recovery guide in order to create the backup ?
Edit: i saw something about connecting the usb to the 4 pin port, but do i need to use some sort of male to male usb cable ?
Second Edit: my head unit has physical buttons, i saw that the guide is mostly for units without physicial button. Is it safe ?
Click to expand...
Click to collapse
If you have physical buttons on your unit (like Volume Control) then it's best to use this guide instead, as you currently have Android 8 API 27 installed, judging by your Kernel version.
The procedure of backing up a Mediatek phone and backing up your head unit is exactly the same. You do not need to use Test Point method if your unit is working.
All you need to do is to follow the guide in the link I gave you, step by step and you will be able to perform a full backup.
Hi. I have got the same. No Equalizer for Radio. There is Equalizer for mp3 player ( App is called Music ), but not for FM radio app.
In Music app, I can change tones like bass and treble, but not balance or fader. I can change balance only on Car settings, but there is no option to change fader ( front and rear speakers ).
Is there any way we can add even simple Equalizer to FM radio App? Or is there another FM radio app with built-in Equalizer?
My radio is Hizpo from Hizpo Europe Store, 2GB RAM, 16GB ROM, 8227L CPU, Android 11 ( may be fake ).
I am trying to ask Hizpo Europe Store about this, but for now I am getting default answers.
vwrafi said:
Hi. I have got the same. No Equalizer for Radio. There is Equalizer for mp3 player ( App is called Music ), but not for FM radio app.
In Music app, I can change tones like bass and treble, but not balance or fader. I can change balance only on Car settings, but there is no option to change fader ( front and rear speakers ).
Is there any way we can add even simple Equalizer to FM radio App? Or is there another FM radio app with built-in Equalizer?
My radio is Hizpo from Hizpo Europe Store, 2GB RAM, 16GB ROM, 8227L CPU, Android 11 ( may be fake ).
I am trying to ask Hizpo Europe Store about this, but for now I am getting default answers.
Click to expand...
Click to collapse
Hizpo is known for very bad quality units, intentionally scaling down the hardware to be able to sell the head unit cheaper.
If you are within warranty, return the product.
The reason for your issues is on the hardware side. You have no audio microchip on the motherboard.
hi all! I bought a BMW x6 head unit based on android. The description says that 825x_pro 4/64.
I have a problem with connecting the USB DAC Fiio K3, the head unit detects it as headphones, but the sound does not play, but it transmits sound through the UAPP application. The system and other applications do not give any sound. I certainly apologize, I have been looking for a solution for a week now. I am attaching a photo of the head unit. maybe I'm doing something wrong. thank you in advance!
Check Usb Audio Routing in the developer settings. Maybe it's deactivated there.
No is activated
Did you figure this out? Having the same issue.