The first time I tried my S20 with Android Auto and Spotify I was disappointed with the sound quality in the car. The volume was much lower than other audio sources in the car and it just didn't sound good at all.
I had the equaliser settings on the phone set to my normal Custom settings that I use with headphones. That is a small +dB increase in the high frequency and low frequency.
I accidentally discovered that the +dB increase in the highest frequency band I had in my custom settings was having a weird effect via Android Auto. If that frequency was set to anywhere above 0dB, the whole volume level in the car dropped significantly. Putting this frequency setting back to 0dB and its like someone just massively turned up the volume. The same was not true for changing the low frequency setting in the equaliser - if I had the low frequency band boosted slightly there was no change to volume level. I have no idea why this is happening - very weird!
The car headunit I am using is a Volkswagen Discover Pro system. If don't know if the problem I was having is specific to the car headunit or not but if I get access to a different headunit I will see if the same thing happens.
So if you are having audio quality problems with Android auto, try leaving the equaliser on Normal or making sure the highest frequency band is set to 0dB.
With these settings, the sound quality I am getting with Android Auto is really good
UPDATE: I connected the phone to another headunit (in an Audi Q2) and the same thing happened.
Usefull post. Thank you !
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Just set up my newer lg g2, stock rooted kitkat, and i noticed that when i play audio, the phone's dsp settings actively limit the max volume (probably to avoid distortion in the built in speakers making their product seem higher quality), but it sounds like crap when i play audio. For instance, whenever there is huge base, the total volume level gets cut momentarily, sounds like cheap factory car radio when you are trying to jam. Tried on bluetooth as well, and that's when i blew my top after realizing their dsp settings suck for high end audio listeners no matter how you connect to the phone. Tried a couple EQ apps, and anytime that i up a frequency, the max volume drops; the effects of crappy active limiter.
Anyhow, how does one disable/bypass/delete lg dsp active limits?
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I've recently fitted an Xtrons PB88UNVP (MTCE_GS_V2.88_3) PX5 headunit. The speaker power is 4x45W (probably pretty standard on these things) and generally sounds good.
However, it's quieter than my previous WinCE unit and I find I have to run it higher up the volume scale for a decent listening volume.
Sometimes I like my music loud, and I can turn it up to MAX (30) without deafening myself or even experiencing clipping from the headunit's amplifier - output is still clean and undistorted. I'm running the EQ fairly flat and Loudness is set to ON.
My question is - NOT what volume should I be listening at in my car to still hear the engine, traffic around me and be safe on the roads - BUT is it safe to run these headunits at 25-30 (83-100%) continuously/for extended periods? Will it overheat or be damaged by running at this sort of volume?
Thanks
I noticed the exact same thing - again, compared to my previous WinCE units, just like you. These Android units just seem significantly less powerful in comparison. I have a feeling that the 45Wx4 max rating (I know it's not RMS) is a little on the "wishful thinking" side. My WinCE units (18->25Wx4 RMS, 50Wx4 max) seemed considerably more powerful.
I haven't seen these Android units list the RMS power, but I have a feeling it's lower than a lot of the older WinCE units. It also seems like the volume scale is just "different" - it doesn't start getting even somewhat loud until the volume is 2/3rd's of the way up or higher.
It's really hard to say if they are clipping or not in those upper ranges, but I have a feeling they may be - depending on how you have the EQ set - even if you can't hear the distortion.
To me, it seems like you have to sacrifice a lot on the audio side of things for the flexibility that you get from Android.
@jtrosky: I have noticed distortion when the EQ is set to the Rock preset, which is very bass-heavy, and is turned up high. I don't personally like heavily biased EQ profiles and would prefer to run it as flat as possible across the frequency spectrum. A little bit of tuning seems to help these units particularly though. I agree with you that their amplifiers are weak, or rather underpowered. That said, my experience so far is that at medium volumes it sounds alright, to the extent that I didn't notice my sub wasn't working at first.
So do you regularly run yours at two thirds volume or above and do you think they can handle it for a sustained period?
Has anyone ever fried one of these?
Honestly, I connected an amp shortly after installing, so I can't say how they would last over time if used at louder volumes frequently with the internal amp. To me, it seems like they have the volume control setup in a way where it doesn't get very loud until at least 2/3rd's volume - and then every click makes a substantial difference. So I wonder if they just have the volume scale "tuned" differenlty than other head-units? But my point was that the unit can be clipping without you even hearing any distortion - clipping is not always audible. I had a LOC hooked up for testing briefly and it had a "clipping" light - and I was seeing clipping way before any distortion was audible. I think these units use pretty poor quality amps.
I've actually removed the Android head-unit completely and went back to my older WinCE-based unit. Just was not happy with the Android unit (sound quality, noise-related issues, etc).
I've actually removed the Android head-unit completely and went back to my older WinCE-based unit. Just was not happy with the Android unit (sound quality, noise-related issues, etc).
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That's sad to hear. I deliberated for so long before taking the plunge and buying one. I like the Android platform, and the few niggles I have with mine aren't sufficient to make me want to change it... yet.
I must admit though, when I made my first post I had been listening to DAB, which is probably the quietest source. FM is probably 15% louder at the same volume setting, and is the loudest of all the sources. I don't know if there is any way to make this louder, as a USB device, and there is no volume 'boost' option within realzoulou's DAB-Z app (only a <= 100% setting).
FM on full whack does distort a bit, but it's too loud to listen to constantly, so while a bit weak I think the on-board amp should be capable of more.
Better control of volume on different sources within Android would be nice, do you know if this is possible?
You can alter the volume of each source in the Factory Settings, under the "Voice" tab...
If you are coming from a stock radio with stock speakers, the Android head-units may be an upgrade in terms of sound-quality. But for me, coming from an aftermarket, high-quality WinCE unit, the sound quality just wasn't up to par. The WinCE unit I'm referring to (Dynavin N7) has high-quality audio components though (4V pre-outs, "high-resolution Burr Brown 24-Bit Digital to Analogue converters", etc) - so once I got used to the sound quality of the Dynavin (or even the Rosen GM1010 befoer it), it was hard switching over to the Android unit. Believe me, I went to great lengths to make it work, but it just wasn't mean to be, considering the sound-quality downgrade and the noise-related issues I had with the Android unit.
Don't get me wrong - I liked almost everything about having full-blown Android as the OS - it's just the sound quality that I wasn't 100% happy with - which, to me, is very important.
I just installed a Joying HU into a Lincoln MKX (with THX) and am getting a fairly loud hissing sound no matter what app is open. It doesn't seem to change, just a steady hiss. It sounds like if you don't have an input and turn the volume up to max.
The other strange part is that the volume is really loud on volume 1 using the default EQ setting. I can lower the EQ and it puts the volume where it should be but the hiss is still there albeit not as loud. If I mute the volume the hiss disappears. I'm wondering if this has something to do with the factory amp and the line level is too high.
Is there any way to resolve this or is it the head unit and I need to return it?
Edit: Problem solved!! My issue is that the speaker level is too high so I had to use the RCA's (line level) by using a RCA to speaker wire adapter. I could have also used a line output converter instead.
Same here with an Eonon device. A static background noise no matter the audio source. But it's only audible when something is playing. You can minimize it when you set the amplifier/equalizer settings to flat (all sliders to bottom).
Just a bad DAC implementation. I usually can only hear it when the engine is off and volume is low.
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There should be a gain adjustment in the factory settings menu. I don't own one so I'm not sure how you get to it there seems to be a number of different ways depending on the unit. Maybe ask your seller for help.
I've seen a few posts recently about how to set up Viper4Android on an Android head unit, so thought I would start this thread so that we could share some ideas. The configuration that I posted below is what I came up with in 15 minutes of experimenting yesterday. It's not a definitive or optimum config, it's just what I came up with, but I am very happy with the result. The purpose of this thread is to share ideas and configurations, due to there being a complete lack of this kind of information anywhere else that I could find.
First, a disclaimer: I'm half deaf, have constant ringing in my ears, and I am most definately not an audiophile, so take anything I say below with a grain of salt. Having said that, I do appreciate clarity when listening to music, so that is always my priority.
So I installed an android head unit in my car last week, installed the Hal9k ROM which came with Viper4Android (V4A) pre-installed. I've played around with V4A on my phone before with goods results, it's mainly geared towards phones with earphones, so don't expect too much from it using it in the car. But I played around with it yesterday and came up with a setup that I am really happy with, it gives in my opinion a richer, fuller sound, with no loss of clarity.
So here is what I did:
1) Select the speaker icon down the bottom. The headphone setup certainly has a lot more options available, but I went with the speaker setup as that's what I'm using.
2) Turn on the Master Limiter
3) I turned on Playback Gain control for a specific reason. My head unit has a bit of hiss with no signal at very high volumes. I can't hear it while the engine is running, but it's there. Bumping up the playback gain control let me turn down the gain on the head unit (look in Factory Settings) which reduced the hiss, but without any clipping or distortion that I can hear. I set Strength to 2, Max Gain to 9x, and output threshold to -1db.
4) I turned on the FIR equaliser. I was using the equaliser in the Amplifier app that came with my head unit, but I would rather just have all of these settings in one place, so I set the Amp equaliser to flat, and made all of my adjustments within the FIR equaliser. My setup tends to be a bit bass-heavy to my ears, so I just use the equaliser to gently taper off the bass, and I leave everything else flat. But just adjust it so that it sounds right to you in your car with your choice of music.
5) I turned on Reverberation. I dare say many will scoff at this, but I like the effect. It makes the sound more "full", without any loss of clarity that I can hear. I used fairly minimal settings to achieve this effect. Room size = 25m2, Sound Field = 6m, Damping Factor = 20%, Wet Signal= 20%, Dry Signal = 50%.
And that's what I came up with in 15 minutes. I'm really happy with the result though. Hopefully that will give others a starting point to do some more experimentation. And if you have your own ideas, please share them here
jrobbom5 said:
I've seen a few posts recently about how to set up Viper4Android on an Android head unit, so thought I would start this thread so that we could share some ideas. The configuration that I posted below is what I came up with in 15 minutes of experimenting yesterday. It's not a definitive or optimum config, it's just what I came up with, but I am very happy with the result. The purpose of this thread is to share ideas and configurations, due to there being a complete lack of this kind of information anywhere else that I could find.
First, a disclaimer: I'm half deaf, have constant ringing in my ears, and I am most definately not an audiophile, so take anything I say below with a grain of salt. Having said that, I do appreciate clarity when listening to music, so that is always my priority.
So I installed an android head unit in my car last week, installed the Hal9k ROM which came with Viper4Android (V4A) pre-installed. I've played around with V4A on my phone before with goods results, it's mainly geared towards phones with earphones, so don't expect too much from it using it in the car. But I played around with it yesterday and came up with a setup that I am really happy with, it gives in my opinion a richer, fuller sound, with no loss of clarity.
So here is what I did:
1) Select the speaker icon down the bottom. The headphone setup certainly has a lot more options available, but I went with the speaker setup as that's what I'm using.
2) Turn on the Master Limiter
3) I turned on Playback Gain control for a specific reason. My head unit has a bit of hiss with no signal at very high volumes. I can't hear it while the engine is running, but it's there. Bumping up the playback gain control let me turn down the gain on the head unit (look in Factory Settings) which reduced the hiss, but without any clipping or distortion that I can hear. I set Strength to 2, Max Gain to 9x, and output threshold to -1db.
4) I turned on the FIR equaliser. I was using the equaliser in the Amplifier app that came with my head unit, but I would rather just have all of these settings in one place, so I set the Amp equaliser to flat, and made all of my adjustments within the FIR equaliser. My setup tends to be a bit bass-heavy to my ears, so I just use the equaliser to gently taper off the bass, and I leave everything else flat. But just adjust it so that it sounds right to you in your car with your choice of music.
5) I turned on Reverberation. I dare say many will scoff at this, but I like the effect. It makes the sound more "full", without any loss of clarity that I can hear. I used fairly minimal settings to achieve this effect. Room size = 25m2, Sound Field = 6m, Damping Factor = 20%, Wet Signal= 20%, Dry Signal = 50%.
And that's what I came up with in 15 minutes. I'm really happy with the result though. Hopefully that will give others a starting point to do some more experimentation. And if you have your own ideas, please share them here
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I downloaded Malay Mod {and got the Full Version}. It also came with V4A but I hear no difference no matter what I've got selected. Mine has "Headset - Phone Speaker - Bluetooth Device - USB/Dock" tried them all ..
My headunit pushes amps via RCAs, so maybe it doesn't work through those channels?
Good ideas on your tuning {I've for tinnitus too}.
Hi there,
I have 2018 Joying with Intel Sofia. Rooted with few mods.
Audio is cutting out when volume is set more than 50% (roughly) and with equalizer is set other than flat.
The frequency of cutouts is raising with a volume and with increasing low or hight tones on an equalizer app.
For me it's be rather a software bug than hardware.
Anyone can help please?