Odd Sound Quality Issue - MTCB Android Head Units Q&A

Hi,
I've had an Android 5.1 Pumpkin unit in my Golf for a while now, and the sound quality as always bothered me. It's sounds flat with no impact or depth.
But yesterday I discovered by accident, If I restart the unit and open PowerAmp, it sounds much much better, there is loads more power and volume (what I expect it to be like)
But, If I start the Radio App, its all goes back to how it was before, ie terrible, and I have to reboot the unit to get my good SQ back
Any ideas whats going on and how I could permanently get the good SQ out if it?
The unit is MTCC-KLD6-V2.97, running the factory ROM.
Thanks

Related

[IDEA] Automatic volume control while listening to music

Hello everyone,
An idea just popped in my head, what do you think:
A program that changes the device volume/volume in the music-player according the noise it picks up from the outside via the phone's mic.
For example if you sit on a bus that has a pretty loud engine the music would become louder (preferably you can define by how much, maybe by defining a maximum, or assigning each noise level an arbitrary volume which is comfortable for you) but as soon as you get off the bus and the environment is a lot quieter it would drop down to normal/other predefined.
I googled a little bit, but couldn't find anything like, that, so what do you think? I don't consider myself as a programmer, so if any developers are interested feel free to actually make the program happen, I would be more than happy to use it.
Others: opinions are welcome!
Thanks,
DOMy
Honestly I'd be interested in something like that, but only to get white noise to try and lower environmental noise: I'd like volume changing ability only for the MP3 player, to recognize actual speed and turn up/down according to that. It's a feature you can find in stock, factory default car audio system (my wife's 2005 Micra, not a full optional, has got that), battery drain wouldn't be a problem as I always plug my ppc to the car cradle when I drive.
teorouge said:
Honestly I'd be interested in something like that, but only to get white noise to try and lower environmental noise: I'd like volume changing ability only for the MP3 player, to recognize actual speed and turn up/down according to that. It's a feature you can find in stock, factory default car audio system (my wife's 2005 Micra, not a full optional, has got that), battery drain wouldn't be a problem as I always plug my ppc to the car cradle when I drive.
Click to expand...
Click to collapse
I get the idea exactly from the car-factories, the volume changing according to the speed works great

Distorted bass (headphone jack)

I am having a problem with the headphone output. When listening to anything bass heavy... such as house music, the bass is distorted. Its sounds almost as if the headphones I am using are blown. I know this is not the issue because I have tested several different pairs, all with the same result. I even experience this when I have the phone hooked up to my car stereo. Volume isn't an issue and everything else seems to sound fine... its just that bass notes and kick drums sound horrible.
I'm coming from a Vibrant which was a powerhouse with voodoo sound enabled.
I understand that the Yamaha dac in the SGSII is nowhere near as good as the Wolfson used in the SGS... but it shouldn't sound this bad?!?!
I have tried just about every audio/dsp app available to no avail.
Does anyone else have this issue?
Also... not sure if it matters but I am running Juggernaut v3.7
Any help would be greatly appreciated.
hmm I was going to suggest you get power amp and just turn down the overall level in the eq. that might help in troubleshooting where in the signal chain the distortion is coming from. If it remains distorted at low level i would assume it wsa a hardware problem.
Ive certainly not any problems with distortion as long as i keep good gain structure in my eq.
I have tried power amp. I also tried lowering all the levels down. Nothing works
I forgot to mention that the problem exists even at the lowest volume settings... quite fustrating
I really hope it isn't faulty hardware... not sure ill be able to get a replacement
Completely different hardware but I had this issue on my HD2 after either making the lower frequency settings too high with other DSP or equalizers or when I used root level volume boosters like Volume Hack+
Are you using a stock (non-flashed non-rooted) build? If not, you can try a nand backup and flash a fresh install of your ROM. Not installing anything and go back to the same songs to see if they distort.
The SGS2 can push a good amount of low frequency granted you have earphones/equipment that can pick up low frequency output. I use it in my cars and with my Sennheiser headphones with no real issues and great output. Even with max volume, no distortion.
The HD2 was capable of only so much before it distorted but I haven't been able to replicate the issue with my SGS2. But then again, I haven't installed DSP or any other 3rd party volume/equalizer apps.
Im running juggernaut 3.7 w/ bullet kernel. To be honest I didnt check what it sounded like prior to rooting and flashing the custom rom. I only installed the dsp apps to fix the problem.
A new release just came out so I will take your advice, wipe and start with a fresh install.
Hope it fixes the problem.... its really driving me nuts.
Have you tried a different ROM? If not, try CM7 Alpha v3. Theres nothing like CM's DSP Manager.
Make a NANDROID backup first, that way if the problem still persists, you can always easily switch back to your current ROM.

Sound through headphones is really wierd...

After a while the sound through my headphones sounded wierd the voices were super low and the bass almost completely gone.. if I play it through power amp with the volume control on right or left meaning only play out of those sides it sounds perfectly normal... but if I place the balance in the middle it back to the wierd sound... any idea what could cause this and how to fix it.
How about your BT ? How does it sound ? I recently paired my E4GT to my Ford (using SYNC) and I noticed the volume was really low, compared to my old Blackberry 8350 (which worked perfectly). Also the quality of the voice seemed much lower when compared to the Blackberry... it doesn't make sense.
The weird part is that media files are playing exactly as before, so the music sounds very good while call quality is ... well it $#!^...
peryp9 said:
How about your BT ? How does it sound ? I recently paired my E4GT to my Ford (using SYNC) and I noticed the volume was really low, compared to my old Blackberry 8350 (which worked perfectly). Also the quality of the voice seemed much lower when compared to the Blackberry... it doesn't make sense.
The weird part is that media files are playing exactly as before, so the music sounds very good while call quality is ... well it $#!^...
Click to expand...
Click to collapse
Not sure But an important factor is I did pair my cellphone up with my Car's inbuilt ipod adapter I used a Female ipod to Auxilary adapter to connect my phone to the cars audio system would that have caused it? I tried factory reset everything still sounds the same... I don't know why... would there be any app or program to test the audio quality? like a virtual headphone test or something?
Edit: I played a Dolby headphone test on my phone using the earphones and everything seems okay except for when it does the LFE Hz test at about 80-75 Hz I can't hear anything, but on my computer I can hear all of them here is the link http://www.youtube.com/watch?v=gUrk2W_r5fc

Gap & silent during listen music

-when listen music either on HTC music widget or PowerAmp
- got Gap and silent when using Bluetooth headset
- works fine if direct connect to the ONE X
any idea and fix ???
I've yet to see if this works for bluetooth but had a look at the ROMeOS rom and saw this in the build.prop as monx seams to have fixed the stutter: lpa.decode=true
I've set this in my build.prop and will try through the car bluetooth tomorrow.
To edit build.prop in the system folder you will need root access
thanks , buddy , let me know the result.
Unfortunately made no difference for me, will keep digging though as this is annoying when I have a 40 min commute to work each morning and again back.
Anyone have any idea's?
Edit: this doesn't just happen on the beats setting, turning it off makes no difference.
Anyone have any ideas on any fixes yet?
Sent from my HTC One X using xda premium
Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.
skr_xd said:
Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.
Click to expand...
Click to collapse
That seams to be the case, having just sat in my car for 15 mins, 5 mins just music and 10 mins with music and maps and no glitches with maps.
skr_xd said:
Have the same stutter issue even after 1.28 update connected with my bluetooth MW600.
Seems the problem is device switching to power conserve core. When i play music in background while running GPS in foreground, iam not getting the stutter.
Click to expand...
Click to collapse
I have the same bluetooth headset, the MW600 and the stutter makes it unusable. I'm on 1.29 stock now and I got to the point that I don't use my MW600 for listening to music anymore, but just wired Sennheisers.
Have you found a solution yet?
wph said:
I have the same bluetooth headset, the MW600 and the stutter makes it unusable. I'm on 1.29 stock now and I got to the point that I don't use my MW600 for listening to music anymore, but just wired Sennheisers.
Have you found a solution yet?
Click to expand...
Click to collapse
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.
skr_xd said:
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.
Click to expand...
Click to collapse
I was also planning on buying that Sony thing, but then I found my Nokia BH 214 back. It is now charging and when I'm back home I will test it. If it also stutters, I'm not going to buy a new headset, because it's likely to have the same problems, although that Sony is Bluetooth 3.0, which could make a difference.
I'll let you know the results with the Nokia.
I have stutter problem with sennheiser Bluetooth headphones. Am on stock 1.28, and disabling beats doesn't help (although did help on older version)
Music is unlistenable now
Sent from my HTC One X using xda premium
I'm running 1.28 & have the same issue with my car kit which is a works supplied Nokia car kit that allows A2DP connections. I'm definitely going to try running the GPS at the same time on my way home from work to see it that fixes it as suggested. I have a usb charger that I plug in so won't be using any extra juice. I'll post back my results.
skr_xd said:
No. Not really
After using MW600 for 2+ yrs without much issues iam thinking to order Sony Smart wireless Headset Pro and see if it makes some difference. But, its not yet available in stock
http://www.sonymobile.com/cws/corpo...rtfolio/specification/smartwirelessheadsetpro
I read somewhere that some custom ROMs solve music stutter issue. Iam on stock locked and can't comment though.
Click to expand...
Click to collapse
Sorry for the very late reply, I completely forgot it. Just yet I tested the Nokia BH 214. First my One X couldn't find it, tried for almost 10 minutes. Then I disabled WiFi, just to try, and yes the headset was found. Then I put WiFi back on, but it refused to communicate. Wifi off again, communicating worked. So to say pairing was easy: far from that.
Now the next phase: listening to music. Completely unusable. Very very bad. There's something wrong with output, vocals are washed away and sound like the singer is 100 miles away. While quality isn't an issue with the MW600. But also the gaps. What is also very strange is when the phone is on my desk in line of sight with my headset, the are only a few gaps. But as soon as I put the phone in my pocket, the gaps increase exponentially.
So I think in my case the only thing left is to send the phone back. There must be something wrong with it, my WiFi reception is also very bad. Bluetooth also sucks, so since WiFi and Bluetooth are handled by the same chip, there must be something wrong with it. I really like the phone and sending it back means it's away for 2/3/? weeks, but first I hoped it was something with the software but that hope is fading away.
--------edit: just pissed of by all this. Called HTC and I'm sending it back for repair. Nice phone, but basics like WiFi and Bluetooth must work and they don't. They said it will be back in 7-10 working days. Hope they can keep that promise. --------
Have the same problem with my Jabra Freeway, really annoying to get thos silent gaps when listening to podcasts and music in the car. Tried to run navigation on my way to work today to see if that made any difference but it didn't :-(
wph said:
Sorry for the very late reply, I completely forgot it. Just yet I tested the Nokia BH 214. First my One X couldn't find it, tried for almost 10 minutes. Then I disabled WiFi, just to try, and yes the headset was found. Then I put WiFi back on, but it refused to communicate. Wifi off again, communicating worked. So to say pairing was easy: far from that.
Now the next phase: listening to music. Completely unusable. Very very bad. There's something wrong with output, vocals are washed away and sound like the singer is 100 miles away. While quality isn't an issue with the MW600. But also the gaps. What is also very strange is when the phone is on my desk in line of sight with my headset, the are only a few gaps. But as soon as I put the phone in my pocket, the gaps increase exponentially.
So I think in my case the only thing left is to send the phone back. There must be something wrong with it, my WiFi reception is also very bad. Bluetooth also sucks, so since WiFi and Bluetooth are handled by the same chip, there must be something wrong with it. I really like the phone and sending it back means it's away for 2/3/? weeks, but first I hoped it was something with the software but that hope is fading away.
--------edit: just pissed of by all this. Called HTC and I'm sending it back for repair. Nice phone, but basics like WiFi and Bluetooth must work and they don't. They said it will be back in 7-10 working days. Hope they can keep that promise. --------
Click to expand...
Click to collapse
Thanks for info.
Seems the problem is more related to Bluetooth version & buffering.
I'm planning to buy Sony wireless headset pro with bt v3.
I'll update once I get it hopefully by end of June...
Sent from my HTC One X using XDA
I just tried using my Moto S10-HD after reading this, and thought I would tell you my experience. I have alot of music on my phone, and I just hooked up my BT with Wifi on and no issues, so I started to play music and so far 3 songs and no gaps stutter or anything like that. One thing that does happen which prior phones didnt happen is that when the screen goes to stand by after not touching it, there is a .5 second interruption in the song, but thats it I am currently on my forth song and the phone is in "standby" mode and it plays perfectly.
I have the WWE version of the phone using 1.29.401.11 ROM BL unlocked, rooted, and custom stock rom.
Not sure that it helps you but to share my experience; I have occasional stuttering on bluetooth using my Sennheisers if the phone is in my pocket. I found that I can replicate the stuttering if I completely cover the top of the phone with a hand on either side and cupped together at the top - in fact I can cut off bluetooth playback altogether.
This isn't a normal way of holding the phone obviously - but it does count if the phone is in your pocket, there is already some 'resistance/interference' from the surroundings. Other than that, I have great wifi reception, best of any phone I have had.
Could this be a hardware fault? Maybe they just need to boost the bluetooth signal / improve buffering?
I only got my HOX this week, aside from this issue it is great, no other issues - touch wood
Mine seemed to studder when it was in my pocket while I walked my dog. I sent it in for other issues and we'll see if the new one has similar issues.
Same problem here ! Kinda disapointed !
Same problem SonyEricsson HBH-IS800
I also have a lot of stuttering. It appears to be a very weak signal because it works better (though still not flawless) when I have the phone close to the headset.
Putting the phone in my pocket is already far enough for playback to completely stop working.

Xtrons with Hal9k ROM - parking sensor sensitivity & tone

Hi all,
I have an MCTD_GS rk3188 Xtrons PF7590BAP that was running Android 5.1 but after a bit of fiddling is now running Hal9k 7.1.2 ROM.
I still have some annoyances with it (but thankfully it can now run iBus idrive launcher) - mostly around the parking sensors.
When reversing the BMW kit used to solid beep when close enough to an object to stop. This was a good distance. Now there is no solid beep just a somewhat faster beep - same as before the ROM. Can this beep behaviour be changed?
The tone also is really beepy and unpleasant compared to the original BMW tone. Can the sound be changed?
Also, when the beeping gets as fast as it gets (not easy to tell for me) and the two red lines are by the bumper on the graphic on screen, I'm probably twice as far from the object as when the BMW system used to sound a solid beep. I want to get closer. Is there a way to change the sensitivity?
(also my FM radio reception is terrible but I think this is because I haven't connected the "antenna" power wire on the antenna connector adapter?)
Thanks,
Matt

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