Will changing ROMs change my sound output? - MTCD Android Head Units Q&A

So I have spent many hours with my aftermarket sound tuner (OEM Audio+) and they have gone to great lengths to tune the aftermarket amplifier to sound perfect with my Joying HU.
I am not sure what the factors are that will change the sound but will updating to a Malaysk rom (or updating in general) change the headunits internal EQ settings or are all MTCD roms typically the same?
For clarity, would flat EQ (on current ROM) vs flat EQ (on Malaysk ROM or updated Joying ROM) sound exactly the same?
I have the new Joying 5.1 Toyota (200mm x 100mm):
MTCD_JY_v1.63_1 (Jun 12 2016)
Also side question, does anyone know why Google maps mutes my music or how to fix it? =p
Thanks.

l0aded said:
So I have spent many hours with my aftermarket sound tuner (OEM Audio+) and they have gone to great lengths to tune the aftermarket amplifier to sound perfect with my Joying HU.
I am not sure what the factors are that will change the sound but will updating to a Malaysk rom (or updating in general) change the headunits internal EQ settings or are all MTCD roms typically the same?
For clarity, would flat EQ (on current ROM) vs flat EQ (on Malaysk ROM or updated Joying ROM) sound exactly the same?
I have the new Joying 5.1 Toyota (200mm x 100mm):
MTCD_JY_v1.63_1 (Jun 12 2016)
Also side question, does anyone know why Google maps mutes my music or how to fix it? =p
Thanks.
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Yes it would sound exactly the same

Related

Android Head Units Sound Control Software

Question about the software on these things. Do they have control for Crossovers for the Front, Rear and Sub? Does the EQ settings stick to the Front, Rear and Sub? Is anyone able to tap into the sound control through a app or something like that?
lowridincrew said:
Question about the software on these things. Do they have control for Crossovers for the Front, Rear and Sub? Does the EQ settings stick to the Front, Rear and Sub? Is anyone able to tap into the sound control through a app or something like that?
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They have a nice EQ but no crossover setting. You also cant control the sub out put its on at full out put all the time. Had to put in a bass knob to fix that.
Going deeper than the built in audio and I found out some professional audio cards also work and Creative brand hardware. Check this out
http://www.extreamsd.com/index.php/2015-07-22-12-01-14/usb-audio-driver
lowridincrew said:
Going deeper than the built in audio and I found out some professional audio cards also work and Creative brand hardware. Check this out
http://www.extreamsd.com/index.php/2015-07-22-12-01-14/usb-audio-driver
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Interesting ill have to check it out.. Let me know how you hook your up if you do this.
Something new about able to use some software?
Since the units also have a subwoofer out ?
Please delete
Did someone contact manufacturer and asked for an option to adjust sub separately?
Just buy a decent dsp and you'll be able to adjust all settings that you like. I'm happy they also provide the full range signal on all outputs, if necessary without any adjustments, leaving me to do the tuning myself.
HVB83 said:
Just buy a decent dsp and you'll be able to adjust all settings that you like. I'm happy they also provide the full range signal on all outputs, if necessary without any adjustments, leaving me to do the tuning myself.
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Got any suggestions?
Something like this: http://mosconi-system.it/product/gladen-dsp-4to6/ or this: https://www.minidsp.com/products/minidsp-in-a-box/c-dsp-6x8
Although I must admit I don't know the Minidsp myself. Between the two I would say Mosconi is the benchmark, costing a lot but delivering almost uncomprimised quality, whereas the Minidsp is the budget choice., but it seems to offer quite a lot value for money.
hans1983 said:
Something like this: http://mosconi-system.it/product/gladen-dsp-4to6/ or this: https://www.minidsp.com/products/minidsp-in-a-box/c-dsp-6x8
Although I must admit I don't know the Minidsp myself. Between the two I would say Mosconi is the benchmark, costing a lot but delivering almost uncomprimised quality, whereas the Minidsp is the budget choice., but it seems to offer quite a lot value for money.
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Very Very interesting. I've notice over time though that It seems these Head units take too long to start up. I haven't been liking the 5 minute wait for my HU to unfreeze. I may do a Windows Stick to Double Din Touch screen or something
5 minute wait? I know it was a little longer with the factory firmware, and some freezing after a cold boot was indeed observable, but with the Malasyk firmware I don't think a cold boot takes longer than 20 seconds and no freezing is observable after startup. I did notice however that it also depends on the skin that you're using, some of them do indeed cause some lag at startup and when switching apps.
Flat audio with Joying 5.1.1 2-din unit
My Joying unit had pretty flat audio compared to original unit in my car. Joying default equalizer somewhat works, but it starts from 60Hz and even if you crank it up to +15dB you are missing a lot from lower end.
So i installed Viper4Android and it works great! Gives you much more control over audio and fixed my issue.
It's pretty easy to install, you don't need any Kingroots or anything. Go to Settings -> Factory Settings -> Enter password *#hct#root# and after that you should be able to install Viper4Android.
I'm using Joying internal amplifier, i don't know how this works with low-level outputs. I also have latest stock ROM.
Concerning the equalizer: according to my audio measurement, the EQ is a 3-band equalizer with central frequencies of 80 Hz, 1250 Hz and 16 kHz. The adjustment possibility is +/- 12 dB for each band. The 60 Hz, 100 Hz and 200 Hz sliders adjust the 80 Hz-band, the 500 Hz, 1 kHz and 2.5 kHz sliders the 1250 Hz-band, the 10 kHz, 12.5 kHz and the 16 kHz sliders the 16 kHz-band. In order to get + or - 12 dB gain all 3 sliders controlling one band must be set to the maximum/minimum position.
hans1983 said:
5 minute wait? I know it was a little longer with the factory firmware, and some freezing after a cold boot was indeed observable, but with the Malasyk firmware I don't think a cold boot takes longer than 20 seconds and no freezing is observable after startup. I did notice however that it also depends on the skin that you're using, some of them do indeed cause some lag at startup and when switching apps.
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I have the 2nd version. It boots in 20 seconds but the apps freeze and volume can't be controlled for a while
larppaxyz said:
My Joying unit had pretty flat audio compared to original unit in my car. Joying default equalizer somewhat works, but it starts from 60Hz and even if you crank it up to +15dB you are missing a lot from lower end.
So i installed Viper4Android and it works great! Gives you much more control over audio and fixed my issue.
It's pretty easy to install, you don't need any Kingroots or anything. Go to Settings -> Factory Settings -> Enter password *#hct#root# and after that you should be able to install Viper4Android.
I'm using Joying internal amplifier, i don't know how this works with low-level outputs. I also have latest stock ROM.
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I installed it to. It's Ok but don't have as much higher control like the headphones and Bluetooth settings. I have the crossover clearing up everything for the most part
valtam17 said:
Concerning the equalizer: according to my audio measurement, the EQ is a 3-band equalizer with central frequencies of 80 Hz, 1250 Hz and 16 kHz. The adjustment possibility is +/- 12 dB for each band. The 60 Hz, 100 Hz and 200 Hz sliders adjust the 80 Hz-band, the 500 Hz, 1 kHz and 2.5 kHz sliders the 1250 Hz-band, the 10 kHz, 12.5 kHz and the 16 kHz sliders the 16 kHz-band. In order to get + or - 12 dB gain all 3 sliders controlling one band must be set to the maximum/minimum position.
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Are you telling me that MTCD units also have this issue? I was thinking that it's problem with older MTCB units. I do have oscilloscope to do some measuring myself, but right now i don't have time for that. Do you thinkg same hardware mod would work for MTCD units too? Do you have measurements for amp output? I think it starts to fade out badly below <60Hz, maybe they used wrong components for filtering in actual preamp circuit.
Luckily Viper4Android is software solution...
Just an idea.
Wouldn't it be nice to have a DSP app in place of the standard Amplifier app, with possibility to use the internal 4 ch out as active crossover system with optional bi-amplification from the internal ampl?
Think of it
Case A: 2ch (front) with high pass for the tweeters and 2ch (rear) with low pass for the woofers + sub-woofer out. Saves the cost of an active crossover!
Case B: Direct speaker out for tweeters and woofers (front only) would do a great job since the internal amp is quite decent and could save us a lot of money. You only need a pair of woofers and tweeters, no crossover or amps! Just add an active sub if you need more punch

[Request] [Question] Porting Lineage BT Stack?

So, strange question and I might be asking for the wrong thing.
On OOS with viper (tried all varieties) if I have viper on over BT headphones, and the volume is above 80%, anything remotely bassy clips like hell and I get quieter volume during that point. I never had this problem with any older phone that wasn't OnePlus. If I used a custom os like Lineage on my old OP5, the problem never appeared. I use the aptx hd Bluetooth codec, but turning that off makes no difference. If its the Bluetooth stack, maybe its possible to port the Lineage one to OOS? I'm not sure what exactly it is, but if anyone has an idea, I'm open to it.
I like OOS and would like to stay on it, mainly to maintain my safetynet and stability.
Edit: The effect I had on if either dynamic system, or viper bass, both at minimum settings. Worked in my old phones that were not oneplus
Have you tried the viper in xxnolimits? I had the same issue with other vipers on oos but using this one I have no issues with clipping. I don't really use dynamic system with my headphones because it doesn't really add bass, but just lowers the volume of everything except bass. This was the same on aosp as well, and I did just test with the included no limits viper and got no clipping.
explosivequack said:
Have you tried the viper in xxnolimits? I had the same issue with other vipers on oos but using this one I have no issues with clipping. I don't really use dynamic system with my headphones because it doesn't really add bass, but just lowers the volume of everything except bass. This was the same on aosp as well, and I did just test with the included no limits viper and got no clipping.
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In fact, I did, it was the best copy of viper I had seen. It only seems to be with oneplus phones on OOS. When I use aosp/lineage I don't get the problem. With xxx, the effect was a lot less clippy, but because I sometimes have my music up at 100%, like on my Bluetooth speakers (it's a big one), it's still noticeable. It's like the OOS audio stack, or Bluetooth drivers or something have something to do with it.
The only other thing i could think of would be to modify the audio mixer file to raise the volume, so that the current 100% volume is now around 80%.that might also solve it but I have no idea where to begin
The best thing I've found so far is to lower the output volume on viper to -3db to fix it, it's not perfect though

Zenfone 6 audio sounds different from everything else?

I'm posting this based on my testing on various sources that the ZF6 sounds with my 3.5mm earphones sound different than my laptop, desktop, and galaxy S7. Desktop, laptop and my S7 sound identical.
Any rock song seem to be overly muffled on the ZF6 on my 3.5mm earphones and I can't seem to fix it. I have tried testing with various settings in AudioWizard and also tried disablling it to no avail.
Not sure if it was like this in Android 9 and also in Android 10.
Anyone else notice this?
I don't have any problem with audio. Have you tried another media player? I use Poweramp.
aleksander002 said:
I don't have any problem with audio. Have you tried another media player? I use Poweramp.
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Tried different media player, youtube, twitch. Everything sounds off on the ZF6 compared to my mentioned examples.
Can you elaborate more about what exactly makes it sound off? Weird frequency response, some kind of sound effect, distortions/cracks? I will try to compare my phone once more.
aleksander002 said:
Can you elaborate more about what exactly makes it sound off? Weird frequency response, some kind of sound effect, distortions/cracks? I will try to compare my phone once more.
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Sorry, English is not my first language.
As far as as describing the problem, there's no inherent "problem" with the sound per se, but most songs I listen to on a daily basis sounds very different and off in a really bad way. I've disabled AudioWizard, and also tweaked with the equalizer, bass, treble in AudioWizard and nothing.
I've kept my best in keeping everything same for testing. Like, listening to the same song, using the same earphones, and pretty much tried my best in keeping things in stock settings and same across my laptop, desktop, s7 and zf6 as best as I could.
I think there's some funky equalizer setting that is muffling certain "tones" in music and I can't access it or something. I have no idea.
Not rooted/locked bootloader if that makes any difference. No funky app or add-on that could possibly affect this.
Edit: try listening to this: https://m.youtube.com/watch?v=3x8geNo31yg
the first 30 seconds sounds so obviously different to me. If this is not the case for you then something is wrong with my zf6 whether by some setting or defective
I can't hear any significant difference between my Zenfone 6 and a Acer Laptop without EQs. The music is quite old and not a high quality one but other than that everything plays fine.
Hi,
I do not own a Zenfone 6 but did own a Zenfone 5 last year and listened to a lot of music. I was coming from an HTC 10(the brand I went back to).
I did experience issues with the sound quality on the Zenfone 5 both on the external speaker and through headphones. The problem being an eq setting (which I had no power over) that lowers automatically the volume when low frequencies (any kind of percussions or beats) played fom either a music player or streaming app. The result was a "wavy" sound where volume fluctuated in a noticeable way, plunging down when low frequencies kicked in (I guess it's a way to stay under a certain maximum dB level?). The rest of the frequencies sounded muffled and blended together. Basically there wasn't a good sound separation even through the headphone jack.
No setting on AudioWizard could solve the issue and it was widely reported on the ZenTalk forums.
I remember a software update which claimed to solve the problem but simply ended rising the max volume through the jack, mantaining the sound distortion as it was. I found no solution whatsoever and switched brand.
I don't know if this problem changed on the 6 but what you describe sounds to me almost exactly what I experienced on the Zenfone 5.
It sounds like there was an output limiter of some kind which was altering the sound to avoid speaker distortion. I didn't notice this on my Zenfone 6. I've never had an Asus before though.
I had several problems with the audio from the 3.5 jack after updating to andoid 10, especially with the fm radio. I had to downgrade to android 9 to fix it.

How to control audio power output from speakerwire?

Hello!
I've heard that in factory settings of certain headunits there is a possibility to change Voltage of power output (stock values are too powerful for BOSE system in a lot of cars). Is this a possibility of chip itsefl (for ex. PX5/PX6) or the fact that a radio is MTCB/MTCD or not?
I'm asking because I've found relatively cheap HU on aliexpress which probably isn't MTCB/MCTD but it have PX6.
https://a.aliexpress.com/_BPTLT6

How to Enable ViperAndroid Fx 2.7 Headset Effects Through Car Speakers MTCD PX5

I was using Viper4Android in my old Android 6.0.1 head unit without any problem. I did use headset effects on my car speakers. There was an option like "Lock settings to Headset" or something like this in options menu.
Now I rooted my Android 10 device and installed ViperAndroid Fx 2.7 and it's driver successfully. But only effects under the speaker menu are working. I just looked options menu but didn't find any option about this.
How can I enable Headset effects on my car speakers?
Hello,
You can't. I spent a lot of time to find out how to do the same, I finally found a message on the viper forum in which the dev said that they locked the effects on the BT output during a major update in 2018 or 2019, It was intentional and they didn't plan to change this.
I tried to use an older viper version on my mtcd, my unit bootlooped so I had to revert back to the embedded version (Android 9 for me) .
traxformania said:
I was using Viper4Android in my old Android 6.0.1 head unit without any problem. I did use headset effects on my car speakers. There was an option like "Lock settings to Headset" or something like this in options menu.
Now I rooted my Android 10 device and installed ViperAndroid Fx 2.7 and it's driver successfully. But only effects under the speaker menu are working. I just looked options menu but didn't find any option about this.
How can I enable Headset effects on my car speakers?
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I know Viper needs "audio compatibility" to run for my phone if your unable to uninstall then you could try to use that
Havnt tried on head unit

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