Having problems with sound quality! - Android Head-Units

Hey just bought a andriod head unit im a complete newbie to andriod ! The problem is i have my amp and subwoofer hooked up and it sounds fine but then the singing (trebbles and mids) go all quiet and fuzzy as i turn the volume up and the bass kicks in, but the bass sounds fine?? im completely lost as to what to do or is this normal?!

Its a silver unit and the details are
Cpu info : cortex-A9 dual core
Ram info : DDR3 1gb
Andriod version :4.4.4
Mcu version : 4.3.10.1-1-11-612101
System version: 2.9.5_20150430

Does this happens when listening to audio CD or Radio?

Related

Infidini ALLWiNNER R16

Hi,
I need some help, I bought an Infidini ALLWINNER R16 4.4.2
When I use radio or dvd player the sound has no noise. Now when I try to use some program like poweramp, vlc or some other by Android the sound gets a noise.
Does anyone know how to solve it?
NOTE: When I pause the music with noise it stays by 2sec and stops and when it starts again the noise returns.
Sorry for my english i have used google translate.
Same issue
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Joying Unit cuts off sound/mutes if volume is raised high while playing music

I purchased the following Joying JY-UL135N2 5.1' Lollipop. 5.1.1 Lollipop Intel SoFIA 3GR Quad Core; RAM 1GB ROM 16GB [Stock ROM]
So whenever I increase the volume to 20/30 while playing music. It cuts the noise/mutes. I have to press the reset button, after the unit resets, the volume comes back on. It is kind of getting frustrating. Im confused if it has to do with wiring/ or its a software bug. I checked the wiring so quite sure it has nothing to do with wiring. Any help would be much appreciated!
I am running no amp right now, just 4 ohm speakers FYI. T
OS Android 5.1.1 Lollipop; CPU: Intel SoFIA 3GR Quad Core; RAM 1GB ROM 16GB; Bluetooth 4.0; 7 Inch Multi-point capacitive touch screen; HD Resolution:1024x600; Support 1080p video
sh6660 said:
I purchased the following Joying JY-UL135N2 5.1' Lollipop. 5.1.1 Lollipop Intel SoFIA 3GR Quad Core; RAM 1GB ROM 16GB [Stock ROM]
So whenever I increase the volume to 20/30 while playing music. It cuts the noise/mutes. I have to press the reset button, after the unit resets, the volume comes back on. It is kind of getting frustrating. Im confused if it has to do with wiring/ or its a software bug. I checked the wiring so quite sure it has nothing to do with wiring. Any help would be much appreciated!
I am running no amp right now, just 4 ohm speakers FYI. T
OS Android 5.1.1 Lollipop; CPU: Intel SoFIA 3GR Quad Core; RAM 1GB ROM 16GB; Bluetooth 4.0; 7 Inch Multi-point capacitive touch screen; HD Resolution:1024x600; Support 1080p video
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Just check one speaker at a time and see if it still does it , it could be a speaker problem .
Make sure you disconnect the other speakers to don't do by fader and balance
wrx216 said:
Just check one speaker at a time and see if it still does it , it could be a speaker problem .
Make sure you disconnect the other speakers to don't do by fader and balance
Click to expand...
Click to collapse
My speakers are pretty new. The connections seem fine as well. How can speaker cut the sound? curious.
sh6660 said:
My speakers are pretty new. The connections seem fine as well. How can speaker cut the sound? curious.
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If the power drain (listening very loud) is too big and the unit can't take it I guess this is the outcome... I guess that's why on some units there is a BIG capacitor to help with those power peaks... and in this one is a little one
I am not expert but from what I have read it could be an possible explanation.
edit said:
If the power drain (listening very loud) is too big and the unit can't take it I guess this is the outcome... I guess that's why on some units there is a BIG capacitor to help with those power peaks... and in this one is a little one
I am not expert but from what I have read it could be an possible explanation.
Click to expand...
Click to collapse
Another possible explanation is that the audio amplifier chip has an onboard thermal sensor which is triggering a shutdown of the chip due to temperature. Is there a time component, ie the first audio cutoff takes longer than a subsequent one if you resume playing at the same volume? Or what happens if you just play the front or just the rears?
twokidsandaphone said:
Another possible explanation is that the audio amplifier chip has an onboard thermal sensor which is triggering a shutdown of the chip due to temperature. Is there a time component, ie the first audio cutoff takes longer than a subsequent one if you resume playing at the same volume? Or want happens if you just play the front or just the rears?
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@twokidsandaphone, good point ! Forgot about the thermal shutdown although I knew about it. It's also a good and possible explanation !
wrx216 said:
Just check one speaker at a time and see if it still does it , it could be a speaker problem .
Make sure you disconnect the other speakers to don't do by fader and balance
Click to expand...
Click to collapse
Dude Thanks!!!!!! It was my Rear left speaker, after I disconnected it , the volume doesn't cut off. So there was a short on that speaker wires. The Joying unit is fine.
sh6660 said:
Dude Thanks!!!!!! It was my Rear left speaker, after I disconnected it , the volume doesn't cut off. So there was a short on that speaker wires. The Joying unit is fine.
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Most welcome mate ??
Just as a little side note something to try if you already ain't , hook the speaker cable back up to the head unit and disconnect the speaker if the unit cuts in and out still its the wire if not check the speakers little leads from the connection to spider sometimes they slap against the basket of the speaker causing the short , if so just bend it out the way a little.. ??

Interference Noise in a PX3

Hello everyone.
I have a problem with my new android head unit. It is an MTCD PX3 octacore with 2 GB of RAM Android 7.1.2 in a Toyota Corolla.
The problem is that I have a deficiency in sound. The sound when playing a CD (DVD) is perfect and high, but on the rest of the audio inputs (mainly player and radio) it sounds lower and with interference or noise.
This noise increases as volume increases and becomes annoying.
I thought it would have to be a problem of volume levels, but checking the factory settings (Voice menu) putting everything to the maximum I still have the annoying interference.
I start to be a little desperate because I do not know what to do, I hope some of you can help me.
Thank you very much in advance.

Android headunit, very low sound. Only beep.

Hi, im a newbie here.
I just buy an aftermarket secondhand chinese headunit and already put it in the car.
When my car only using battery, the head unit function flawlessly. But after i put it in the ignition, the headunit restart and all the media become very low sound almost mute. The only sound coming out from the speaker is 'beep' if i touch the screen.
Right now, to make it work I am pushing reset button or restart my car after 15 minutes.
What should i do to make it working? Is it hardware problem or android problem?
My headunit:
Model number: car audio
Android version: 5.1.1
Built no:ALPS.LD_kk1.MP10V1.6
Mcu:sm92a.1.170427.v1.1-jly-b3
Sorry for bad english
<img src="https://preview.ibb.co/h15RVw/IMG_20171114_182635.jpg" alt="IMG_20171114_182635" border="0">

YT9216CH_AHD_00005_V004_HIFI firmware/software please!!!!

Hi friends. I have issue with my system but not really getting any help from the sellers, they did send me a file to reflash but its saying incorrect software,
my system is:
Kirinavi
Android: YT9216CH_AHD_00005_V004_HIFI
Android os: Android 9.1
XY AUTO: B6.2 (X2)
CAN Pro: BNR-OLD English high with-V2.20.9-connect
DDR: 2g FLASH: 32GB
cpu A7 1.3GHz x4
Amplifier AC7315 MOS bile duct 50W X 4
display 1024*768( 6 bits)
MCU: 3.5 (X2)
can anyone help me to find the correct firmware/software for this model please, (((((Help))))) thank you guys.....
the main issue I am having is that when turning off the car and turning it back on the system does not come back on, so i have to put a pin in the reset for it to come on each time,
2nd say i have a video playing (say YouTube music) my sub/amp sounds like a normal sound until I press the home screen the the amp/sub bass kicks in, and stays on when I go back in to the video, but will have to do this more or less after each track.
so I am hoping you guys could point me in the right direction on getting the firmware/software to completely wipe the system and starting again to hopefully remedy the issue.

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