Noise from the 3.5 mini jack when screen is off - Asus Transformer TF700

Does your TF700T make noise from its 3,5 mini jack when the screen is off?
I have connected my TF700 to some cheap speakers, and i notice a low noisy sound when the screen is off.
My speakers are powered.
I dont have this problem with my phone.
Can anyone test it please?
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app

I have this with nearly every device. Unless I fully kill the power to the speakers/headset, they start squeaking and humming once there's no feed. Doesn't matter if it's my tab, pc, laptop, phone, ipod in dock or even my radio. It's just the idle feed you hear. You phone probably cuts the connection to the jack when you're not using it.

Related

[Q] Headphone Audio Low?

The Asus Transformer has a very quiet headphone out on it.
Anyone know if this is a software thing or hardware?
It's a bit of a disappointment as it stands as my phone is my main music player..
Am i missing something, or is there only a headphone jack on the docking station (which I dont have yet)?
Sent from my Transformer TF101 using Tapatalk
Kiada said:
Am i missing something, or is there only a headphone jack on the docking station (which I dont have yet)?
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
It has a mic/headphone combo Jack. Anyway, I'd really like to hear other opinions on this.
Sent from my HTC Eva 4G using Tapatalk
No problems here. Either your pad is faulty, your headphones aren't working right, you are half deaf without realising, or you've yet to turn the independant volume slider up for headphones to a suitable level in the settings.

[Q] HDMI output, audio poor quality? SOLVED, see #32

Hi
I just got a UK Wi-Fi Xoom, and started out by installing 3.1 and tiamat 1.4 OC kernel on it.
Now i hooked it up to my amp/tv (Onkyo amp, Panasonic TV) but no matter what i played, the audio quality was really poor (no bass, sounded like 8khz mono). Actually the audio coming from the built in speakers sound better! The cable should be fine, as i briefly tried it with an Optimus 2X, and as far as i remember audio was fine...
Any ideas?
Edit: Solved! See #32
This might not be the best test but I hooked up my Xoom directly to the TV which outputs to a pair of Bose bookshelf speakers and Angry Birds sounded great.
What I found off was the color quality of the home screen and through Quick Pic and stock Gallery. Angry Birds looked and played fantastic. My 3 and 5 year olds were glued to the screen. To fix the color I probably need to play with the color settings on the TV...no biggie. Haven't tried a movie yet.
Hi
After i wrote this i tried connecting it directly to the TV. Same result... (crappy audio). I only tried movies/music, and not games, which really dosent matter that much
same problem for me, European 3G Xoom running 3.0.1
Image quality is good, audio very poor.
I have also noticed that the audio quality leaves alot to be desired when using the HDMI out. Granted I am playing them through my TV speakers, but it does seem to be of lesser quality then other sources like OTA TV. Colors also seem a bit off, or over saturated or something. Maybe playing with the TV color settings would help that.
But its still pretty cool that xoom has HDMI mirroring, I use it alot.
I have the same problem... Connecting the audio via the 3.5mm jack sounds great, but connecting via HDMI seems to only send 2 channel audio, with no bass, maybe even at a lower bit rate (not sure, but it sure sounds crappy).
Same issue here. The audio is also heavily clipped. I tried to adjust the volume on the XOOM to at least alleviate the clipping, but I found that the volume controls have no effect on the HDMI out volume (at least on Android 3.1 + Tiamat 1.5 GHz with GPU OC).
willverduzco said:
Same issue here. The audio is also heavily clipped. I tried to adjust the volume on the XOOM to at least alleviate the clipping, but I found that the volume controls have no effect on the HDMI out volume (at least on Android 3.1 + Tiamat 1.5 GHz with GPU OC).
Click to expand...
Click to collapse
I can confirm that the volume controls also has no effect on the HDMI output volume on stock, non-rooted Xoom 3.1.
ok so it is not just mine... Now the big question is if it is every xoom that has this issue or if it is just a selection?
Iv been asking about his for weeks. The sound output is terrible. Hooked up to my Sony system, same as OP says, no bass whatsoever. Same exact sound at same volume played through audio jack is giving my neighbor a heart massage.
Im really disappointed because I was hoping to output some nice tunes and even films but audio quality is unbearable.
Stock UK 3G on 3.0.1.
I demand answers :-D
Macbots drool as I XOOM through the Galaxy to my hearts Desire.
alias_neo said:
Iv been asking about his for weeks. The sound output is terrible. Hooked up to my Sony system, same as OP says, no bass whatsoever. Same exact sound at same volume played through audio jack is giving my neighbor a heart massage.
Im really disappointed because I was hoping to output some nice tunes and even films but audio quality is unbearable.
Stock UK 3G on 3.0.1.
I demand answers :-D
Macbots drool as I XOOM through the Galaxy to my hearts Desire.
Click to expand...
Click to collapse
I'm glad to see this thread too. I've asked about this in other threads and on other forums and the only type of response I get is something like "I hooked it up to my tiny TV and opened the radio Disney app and it sounded just fine!" So it's good to hear people with ears noticing what I've been noticing.
That being said, from what I've been able to research it's either a problem with honeycomb's media player app or honeycomb itself. I've looked at the kernel code and while I did discover that the sample rate is hard coded to 44100 for the audio (with a TODO note in there to make it configurable eventually) I didn't see any errors that would cause it, unless it has to do with the fact that the kernel driver is forcing it to 2 channels but it's possible that honeycomb separates the sub woofer channel which is then discarded by the lower level drivers. Another theory is that they apply some equalization to the sound to make it sound decent on the internal speakers and that sound equalization gets applied to HDMI out as well (but not headphone out). What do you guys think?
Would be interesting to see how other HC devices perform in this area, sound quality, and video quality over HDMI. That might help to pin point weather this is a HC issue or a Xoom hardware issue.
The other HC devices that could be tested:
Acer Iconia Tab -- NO HDMI out
Galaxy Tab 10.1 -- NO HDMI out (proprietary dock connector for video out?)
Tmobile Gslate -- NO HDMI out
Asus Transformer -- Yes (Mini HDMI (Type C))
FWIW the Asus Transformer has the HDMI port is on the device and not on the keyboard accessory.
Xooms HDMI is listed as: "HDMI Type D (HDMI 1.4) connector"
I wonder what the quality of the Asus Transformer has on HDMI out, I wonder if it even does full mirror mode.
Wait, serioulsy only one other HC device has an HDMI out? Strange.
I wonder how GingerBread or Froyo quality is with HDMI mirror, are there any android phones with out of the box HDMI out with mirror?
My EVO has HDMI out but it doesn't mirror out of box, I think there is way with custom roms/kernels to get EVO HDMI mirror working.
Droid X has HDMI but no mirror unless you root, and install a special APK.
Are there any android phones with HDMI out mirror?
pearl62 said:
I have the same problem... Connecting the audio via the 3.5mm jack sounds great, but connecting via HDMI seems to only send 2 channel audio, with no bass, maybe even at a lower bit rate (not sure, but it sure sounds crappy).
Click to expand...
Click to collapse
Greetings. Same problem with HDMI....workable, tolerable with EQ on amp. However....steaming music through Tune In radio or any other service is where I have a problem with the 3.5mm. Music Beta starts automatically. No matter what I do I can't get it to stop.
Suggestions...workarounds? Do I need to root the thing and remove Music Beta and go third party?
The Acer Iconia A500 does have micro HDMI out
Hi all,
Sorry to go against the majority here but connecting the Xoom to my Dell 21.5" HD Monitor with a Motorola Micro HDMI to HDMI cable is bringing me great results the picture quality is stunning. For sound i use the Audio out on the monitor to take the sound to my JBL powered sub woofer and 4 speakers and this also sounds great and i can also use the volume controls on the Xoom to change the volume through the speaker system. Are you all using the Motorola cable or another make?
Marc
I have the same issue. Horrible audio unless I use a 3.5mm Jack. I want good HDMI out... :'(
Sent from my Xoom using XDA Premium App
what9000 said:
I have the same issue. Horrible audio unless I use a 3.5mm Jack. I want good HDMI out... :'(
Sent from my Xoom using XDA Premium App
Click to expand...
Click to collapse
Same here. As soon as I started playing a movie through HDMI out I knew something was wrong. Came on here for an explanation or a solution, guess its down to a software limitation?
someone should bring this up in the Motorola owners forum. The forum mod there, Mmat, is really good about addressing issues the community brings to light and telling the software team
Epedemic said:
Hi
I just got a UK Wi-Fi Xoom, and started out by installing 3.1 and tiamat 1.4 OC kernel on it.
Now i hooked it up to my amp/tv (Onkyo amp, Panasonic TV) but no matter what i played, the audio quality was really poor (no bass, sounded like 8khz mono). Actually the audio coming from the built in speakers sound better! The cable should be fine, as i briefly tried it with an Optimus 2X, and as far as i remember audio was fine...
Any ideas?
Click to expand...
Click to collapse
you can take another HDMI machine to test your tv. the HDMI line is also very important. my xoom is run well in my sharp tv.
I have the same problem with the sound quality that I get when connecting my WiFi only Xoom to my HT system. I tried connecting to a Bose lifestyle V30 and I get sound but it is just flat. No bass what so ever and only get sound from my center speaker. I tried a different HDMI input in the Bose system with the same result. If I connect the Xoom via headphone jack to RCA imput it woks just fine and get good quality sound.
I tried connecting to a Denon AVR-2308CI and I get the same result that I get with the Bose system. I have used 3 different HDMI cables, including a Motorola brand. No difference. Picture quality is great in all cases but the sound is just flat.
Now the question is: Is this a hardware or a software limitation?

Zoom micro HDMI not able to output any subwoofer audio?

Hi all, new to these forums and trying to figure out some information on the xoom and its "interesting" HDMI out. With my friend's transformer on mini HDMI out, he is able to output full audio to our receiver without issues. I cannot do the same with this tablet and the micro HDMI to HDMI cable I have. It outputs tinny 2ch audio only.
I also tried it on four other receivers at the local fry's. Same deal... I therefore figured it is either an issue with the cable I bought or the xoom itself. It would be great to get this working for videos and the like, but the real deal is something far greater: playing angry birds in an earth shattering, bass powered 100" home theater slaughter.
Thanks for reading!
Sent from my Xoom using XDA Premium App
Well the quick way to narrow it down wuld be to try his trasnformer with your cable, or your xoom with his cable. My guess is that its probably the cable, cause I'm pretty sure we hooked a xoom up to the conferece room audio at work and it was incredibly loud bass and all...out of the blue, had the whole office wondering what was going on.
Sent from my SPH-D700 using XDA Premium App
Kcarpenter said:
Well the quick way to narrow it down wuld be to try his trasnformer with your cable, or your xoom with his cable. My guess is that its probably the cable, cause I'm pretty sure we hooked a xoom up to the conferece room audio at work and it was incredibly loud bass and all...out of the blue, had the whole office wondering what was going on.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
was that via HDMI or the 3.5mm jack on the top?
I would but unfortunately the xoom uses micro and the transformer uses mini. I ordered the official Motorola micro HDMI cable since it was $4 from amazon... if that doesn't work it has to be the xoom. Four high end receivers wouldn't give the same result like that. :-\
Sent from my Xoom using XDA Premium App
what9000 said:
I would but unfortunately the xoom uses micro and the transformer uses mini. I ordered the official Motorola micro HDMI cable since it was $4 from amazon... if that doesn't work it has to be the xoom. Four high end receivers wouldn't give the same result like that. :-\
Sent from my Xoom using XDA Premium App
Click to expand...
Click to collapse
Please let us know, if it's the cable, ill buy the moto official one, otherwise I'll just continue to be annoyed with it not working.
Sent from my HTC Desire using Tapatalk
Not sure if this could be the problem, but I have been unable to play 5.1 encoded videos on the Xoom. Any videos with 5.1 audio play at fast forward speed.
dbett said:
Not sure if this could be the problem, but I have been unable to play 5.1 encoded videos on the Xoom. Any videos with 5.1 audio play at fast forward speed.
Click to expand...
Click to collapse
Have a look here. Its not only you....its alot of us.
http://forum.xda-developers.com/showthread.php?p=14317252#post14317252
Well I just tried the HDMI cable and same result. Trash audio. I noticed the sub is putting out the tiniest amount of bass if I Max out the sub... but then I switch to the transformer and it absolutely bleeds bass. Its something in the xoom... I'm disappointed.
Sent from my Xoom using XDA Premium App
Hi all,
I had posted a response in the other HDMI thread but think here may make more sense and even help some of you out. I use my Xoom with the Motorola micro HDMI to HDMI cable going from the Xoom straight into my Dell 21.5" HD monitor from the monitor i use the 3.5mm Audio out port straight into my powered JBL sub woofer which is also connected to 4 JBL speakers. I am getting a full and rich sound stage and for some shows or movies i actually need to turn the Bass down i hope this helps some of you figure out what can or can't be done using a HDMI cable and especially the Motorola cable which whilst it may not be the cheapest option at least for me is giving great results.
Marc
Yes... I have used that as well. It does work, but that does not excuse Motorola from making the HDMI work as it should. I don't always have a 3.5mm Jack to plug into. :-\
Sent from my Xoom using XDA Premium App
@what9000
Sorry I'm a little confused by your post as surely the point is the Motorola micro HDMI to HDMI cable is working as it should as I'm not plugging the 3.5m jack into the Xoom but my monitor so if the Moto cable wasn't carrying the Bass the monitor out wouldn't and couldn't out put it. I thought what others where saying was that they were finding thier HDMI cables were not carrying the bass or maybe I have misunderstood that as the point as many also said they are not using the more expensive Motorola cable was that may be the cause. I realize in theory any HDMI cable should work but real life isn't always that simple.
Marc
Neither HDMI cable type nor manufacturer will make a difference in the number of audio channels played nor resolution of the video output of our Xoom.
If you're only getting two channel sound, then that's all the Xoom is outputting, which makes sense as there's only two channels in our audio system IIRC.
I basically isolated it down to the xoom. Four receivers, two cables and same result. The only thing that didn't change was the xoom. This is a bit underwhelming...
Sent from my Xoom using XDA Premium App
You have to run audio out via 3.5mm jack to get good sound. You can run the hdmi to a dock with a audio out then plug some speakers into the dock and it will sound great, but not straight through the hdmi.
Sent from my HTC HD2 using XDA Premium App

Headphone jack buzz

hey guys,
my One S has buzzing noise coming from the headphone jack, and this problem is pretty annoying especially when it's connected to my car stereo. I thought it might be just mine, but it seems like this is a common issue.
i found this video on youtube. I have the exact same buzz from my One S, though perhaps not as accentuated as in this video.
seems like the One X has this problem as well. found this thread at the One X board http://forum.xda-developers.com/showthread.php?t=1720212
is this a grounding problem in the headphone jack? Beats Audio? what do you guys think?
I've always had this problem with more than one phone. If you charge the phone via USB adapter from the car battery, it gets 10x worse.
This problem only happens when sound is being played back, so when music/video/game sound kick in, it stops. Do you get that noise when sound is being played back?
Bernardos70 said:
I've always had this problem with more than one phone. If you charge the phone via USB adapter from the car battery, it gets 10x worse.
This problem only happens when sound is being played back, so when music/video/game sound kick in, it stops. Do you get that noise when sound is being played back?
Click to expand...
Click to collapse
The buzz is only audible when nothing is playing. Like in that video, when I stop playing music it will be silent for about 2 seconds and then the buzz kicks in again.
I didn't have this issue with other phones
I don't have any buzz, I double checked just to make sure.
Although it might be my headphones, the output is probably not strong enough to play the sound.
It's probably being heard in your car (or in the youtube video) because the output is being amplified.
I'm having the same issue with YouTube and Pandora.
xxquicksh0txx said:
It's probably being heard in your car (or in the youtube video) because the output is being amplified.
Click to expand...
Click to collapse
you're right. the issue isn't as noticeable through earbuds. i think that's why many people are saying they don't have this issue. It's still bad though.
I don't know why HTC messed up this part when no other phones seem to have this issue. Makes me sad.
If it's easy to reproduce for you guys, I'd definitely be pushing for warranty replacement.
I do not have this problem at all. On my cheap pair of headphones or on my expensive one. No hum or sound.
the buzz is there, and it also was on my Desire.
Not when playing tho, only when connected and not playing. Not too annoying, always thought it was supposed to be like that.
And no, I have never heard it through ear buds or phones, only when connected to home stereo or car stereo, and if charged through cig-lighter-outlet it amplifies further...
Closed Source Project said:
I do not have this problem at all. On my cheap pair of headphones or on my expensive one. No hum or sound.
Click to expand...
Click to collapse
It doesnt effect headphones, only when the sound is amplified. Like when you play music in your car.
Simply because that sound alone is not enough to drive the headphones.
Sent from my HTC VLE_U using xda premium
Whether its plugged in to a car or home stereo, its still using the output from the headphone jack. The power output from the jack is the same either way.
I plug mine in to the aux jack of my car stereo daily, and I have no buzz or hum. Do you have your phone plugged in to a power source at the same time? That buzz is usually caused by crosstalk from a poor quality power source.
Or, as I said earlier, it may just be a bad phone.
ptweasel said:
Whether its plugged in to a car or home stereo, its still using the output from the headphone jack. The power output from the jack is the same either way.
I plug mine in to the aux jack of my car stereo daily, and I have no buzz or hum. Do you have your phone plugged in to a power source at the same time? That buzz is usually caused by crosstalk from a poor quality power source.
Or, as I said earlier, it may just be a bad phone.
Click to expand...
Click to collapse
Well my phone doesnt do it in my headphones. I can't test in car, no aux input.
What I was saying is that, of its buzzing in your car but not on your headphones its because the sound level at which the buzz is at isn't enough to drive your ear buds. But when the car stereo amplifies it its easily driving your car speakers.
Sent from my HTC VLE_U using xda premium

Scratchy audio

So here is the scenario:
The car I drive has an audio cassette and I've had the car for about a year now and I've been using a cassette / headhone jack adapter to listen to music, handle calls, and be told where to go by navigation lady. Been through a touch pro 2, my touch 3g slide, sidekick 4g, and this one.
Music bumps properly with slight variations with the quality, I keep the system volume down to half or less to avoid strain on the speakers. No problems there. Phone calls on the other hand; I always turn down the volume on the stereo unit and knock the in-call phone volume down a couple more notches so the person on the other line doesn't sound like a banshee being smothered with a pillow ripping out my speakers.
All my prior devices had no issue after I found that proper balance of course. Unfortunately this device does not play nice at all with my car audio. Didn't matter if I were on stock or any of the different flavors of ICS posted. Any thoughts?
Sent from haha
If I had to guess i'd theorize that either the deck or the adaptor has noise reduction built in magnetically which could be causing a problem with the output of the phone, no idea why it would, through the stereo... or your stereo has recently developed a dirty head or (insert term for spinning thing that turns the cassette wheels that I don't remember here).
Or... the plug on your adaptor is not contacting the jack properly due to its not having a microphone pin as well and THAT is interfering with the sound.
Sent from my SGH-T699 using xda app-developers app
onebornoflight said:
If I had to guess i'd theorize that either the deck or the adaptor has noise reduction built in magnetically which could be causing a problem with the output of the phone, no idea why it would, through the stereo... or your stereo has recently developed a dirty head or (insert term for spinning thing that turns the cassette wheels that I don't remember here).
Or... the plug on your adaptor is not contacting the jack properly due to its not having a microphone pin as well and THAT is interfering with the sound.
Sent from my SGH-T699 using xda app-developers app
Click to expand...
Click to collapse
Dirty heads never came to mind, ill see about acquiring a head cleaner. Hopefully that will kill the banshee that lives in my car stereo. Thanks for the help!
Sent from haha

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