Sound/audio issues s10e

i am having issues with the audio on my s10e. i get sound , it plays loud music and sounds loud, but the voices dont come through for crap. i cant hear at all almost on webcam and music comes through with almost no audible singing, i have the volumes turned all the way up and still nothing, i have no idea what to do next, HELP!!!!

I AGREE. received my S10e couple of days ago. speakers are very nice, but when i try to utilize the mic for gmail video chat i get tons of feed back. updating the drivers posted here on 4/21 helped somewhat, but still not what it should be. HELP Lenovo/Realtek! we need good drivers!!!

Similar Messages

Sound / Audio issues with Google Chrome

Hi guys,
I have this audio issue with a new Macbook Air (2013 base model).
When I stream audio / video (eg podcast, YouTube, NBATV) via Google Chrome, there is the static or clicking sound which you could hear both through the built in speakers and through the headset.
Brought it in to the Apple Store yesterday and they acknowledged the sound on Chrome. HOWEVER when using Safari, this clicking / static sound is no longer audible. I can probably record an audio clip to demo this further. The genius concoluded that this is probably an issues with Chrome or codecs that its using rather than the actual laptop. No replacements at this stage.
I have an old MBA 11” where this issue does NOT occur.
The hesitation in using Safari is Flash. Some video streams such as NBATV, which I watch quite frequently use Flash. Chrome handles this quite well, with no separate installs required.
Has anyone else encountered this? Not sure if I can pursue this issue further with Apple.

Chrome shockwave flash plugin issue causing sound problems on the macbook:
Shockwave Flash 11.5 r31 (old version)
Shockwave Flash 11.5 r502
disabling r31 solved it.
Many people have checked their chrome plugins and found they had two plugins enabled. They disabled the older one and audio is perfect.
-Go to chrome://plugins
-Click and expand +Details in the Upper Right
-Check over the flash files.
-One is version 11.3.31.222
-Disable the odd version and reload the flash content
For some reason, CHROME has allowed two flash plugins to be enabled at the same time, and clearly the older version is the one causing the problems.
go to "Chrome://plugins" tab. Click “Details” at the upper-right corner of the page.
Find “Shockwave Flash” listing for the integrated plug-in on the page and click the corresponding “Disable” button. To identify the integrated plug-in, see the table of plug-in filenames above.
Find the “Flash” (or “Shockwave Flash”) listing for the system plug-in on the page and click the corresponding “Enable” button. To identify the system plug-in, see the table of plug-in filenames above.
disabling Shockwave Flash 11.4 r31 resolved the problem for most people.
When people double checked: if they re-enable Shockwave Flash 11.4 r31, ....the distorted / broken audio happens again.
Hope that solves it for you

3GS - Sound/Audio issues

Greetings,
So I'm having a problem with my iPhone 3GS -
The sound on it won't work unless a pair of earphones are plugged into it, and when in-a-call, What I say doesn't go through to the other person other than tiny-fragments, such as if I say "Hello", it'll come out with just the last part "lo".
I've searched the web for similar problems and found that others have reported where their phone is stuck in 'Earphones' Mode, and when you turn up/down the volume it'll show 'Ringer' with (Earphones) below it.
However, it doesn't do that with mine. When it's not plugged into earphones, It shows only 'ringer'.
Vibrate works, but other than that, nothing related to sound works, if not works the way it should.
Would appreciate any help with this.
Thanks!

I AGREE. received my S10e couple of days ago. speakers are very nice, but when i try to utilize the mic for gmail video chat i get tons of feed back. updating the drivers posted here on 4/21 helped somewhat, but still not what it should be. HELP Lenovo/Realtek! we need good drivers!!!

My Ipad 2 external speakers does not work and headphones has popping sound. This all occured at the same time as my Iphone and Ipod headphones only played mono (no, the "mono" option is not on). How can there be audio issue for all these devices?

My IPad 2 external speaker does not work and the original headphones have popping sound when used. This all occurred at the same time as my IPhone and IPod headphones only plays mono (and no, the "mono" option is not on) with the original headphones, as well as, other headphones tested. How can there be audio issue for all these devices at the same time?
As you may have noted from the list of Apple devices I own, I believed in the Apple and the products it was producing; but it is hard to believe from my experience and the other voices within the Apple Community that we are all experiencing the same hardware issues. Especially since I recently, I upgraded to an IPhone 4g (no, my faith in IPhone 5 series is very little) and is experiencing the same audio problem as described above. So now, I am off to the Apple store again to be told that it’s a hardware problem on new IPhone. Really? Apple, what happen to the pride in the product you were producing?

Everyone does things a little differently. I love to "jam " along with iTunes ( or old Lp's) . Always have. That's where/how I've learned to play .
I'm sure leonieDF is giving a proper way to jam along on a keyboard with an iTune. He blows my mind all the time with what he knows. Nuff respects to him !
What I do is make a GB project I call "Jam With". I'll make several new tracks that are blank. Just has a few instruments named in the blank tracks. You can change those per song ...
Because I'm not concerned about changing the pitch / key.... of the iTune or the tempo ... I can simply play along with it.
Peace,
P. Dreadie

Audio Issues - Sound stops on youtube vid after a few seconds. Please Help?

What's been happening is weird audio issues, especially youtube related though not only (other web video content has been messed up, but mostly youtube). Right now I am using headphones (1/8" or 3.5mm) through the back of the computer and when I turn on the computer, at first I can hear sound from videos. When I open the speaker icon mixer window in the bottom right, I see green bar moving with the sound on the "speakers" mixer and "Adobe Flash Player" mixer simultaneously.
Then after a few minutes or after having a few tabs open, all of a sudden the audio stops. Oddly enough, usually the video keeps going even thought the audio has stopped. I verified this wasn't a hardware issue with my headphones by opening the Speaker Icon Mixer window, and acutally was watching it at the moment the sound stopped and saw the green bar disappear exactly when the sound stopped.
If I restart the computer, or firefox only sometimes (mostly need to restart cpu though) then videos will play again with sound. Once the sound stops however, if I open a new youtube video in another window, it will sometimes cause an "An error occured. Please try again later" crash.
I'm at a loss of what to do.
Running latest version of Firefox (26.0) and Adobe Flash (11,9,900,170 installed). Windows 7 64 bit system, Intel Core I7 Processor.
I have tried many things include "reset firefox", clear cache, changing to an earlier version of Flash (11.3). Tried to update sound cards. Even tried to restore computer to an earlier setting ( I only went two days ago, could go farther back I suppose).When I reverted back, the problem went away for a few hours but then came right back.
I scanned pc with ESET online antivirus, no viruses, Malewarebytes Pro, no issues. Cleaned with CC cleaner. Plenty of hard drive space (using an SSD boot drive btw).
I am not very knowledable about plugins or "addons" or extenstions. Nor do I know if it has anything do "Firefox Options -> applications" (gives content type and then option...essentially a bunch of sound file types and then which plugin plays it). I can give my list of all this out if necessary but there are quite a few and I dont know how to copy/paste that info so it would take. Even though its gonna take forever to hand type these guys all out, I will give my list of "plugins" that may be audio related:
QuickTime Plugin 7.7.4 7.7.4.0
RealDownloader Plugin 1.3.3.66
RealNetworks (tm)
RealDownloader Chrome Background Extensions Plug-in (32-bit) 1.3.3.66
RealNetworks (tm)
RealDownloader HTML5VideoShim Plug-in (32-bit)
1.3.3.66 RealNetworks (tm)
RealDownloader PepperFlashVideoShim Plug-in (32-bit) 1.3.3.66
RealPlayer Download Plugin 16.0.3.51
RealPlayer(tm) G2 LiveConnect-Enabled Plug-In (32-Bit) 16.0.3.51
Shockwave Flash 11.9.900.170
Shockwave for Director 12.0.7.148 (for netscape plug-in)
Shockwave for Director 12.0.2.122 (for netscape plug-in)
Silverlight Plug-In 5.1.20913.0
VLC Web Plugin 2.1.0.0
When I open my device manager and look at "Sound video and game controllers" I see 4 options:
1)AMD High Definition Audio Device
2) Bluetooth Audio Device
3) High Definition Audio Device
4) Intel (R) Display Audio
I'm not sure what this means, if I have 4 sound cards or if they are conflicting somehow.
I tried to update drivers on each one. No change. I've tried "restarting firefox with addons disabled" and "check here to see if your addons are up to date" (they were except VLC which I did update before restoring to previous day and it didnt help).
None of the fixes work for me, same issues. Extremely frustrated!! Help?

I'm having a similar problem with flash audio. After a few minutes of watching a video or playing a game the audio cuts out but the video keeps working. The audio does not return until I refresh the page. The issue occurs regardless of which browser I'm using (have tired both Firefox and Chrome). Oddly enough, when the audio cuts out from whatever flash application is running, my entire system loses sound until I refresh the webpage or close the browser. For example, I was playing Minecraft with Chrome open in the background and suddenly the sound cut out from both. Once I closed the browser my audio came back. I realized that there was a graphic on the webpage that was flash based which likely triggered the issue.
I do not have any Real plugins.
Incidently I also have Intel (R) Display Audio listed in my device manager
Edit: I forgot to mention, this issue only seems to occure when I watch videos that have been uploaded recently. For some reason the audio does not cut out when I watch a video was uploaded a few months ago.

IPhone 5 audio issues when paired with surround sound via Bluetooth.

iPhone 5 has developed audio issues since ios7 updates when its connected to surround sound system via Bluetooth. Audio jumps and skips in erratic and unpredictable manner on music app and worse on third party apps such as YouTube . Have restored phone from factory settings etc. Have also checked surround sound for fault with Bluetooth; iPhone 4 ios7 works fine, android works fine but newest iPod touch with ios7 appears to have developed same issue as iPhone 5 since ios7 updates. Advise people to check for this issue on their Bluetooth devices and any advice would be appreciated on this issue :)

Hey there Vxas,
It sounds like you are gettings some very unexpected behaviour from the iPhone to your bluetooth surround sound system. I would try the troubleshooting recommended in this article:
iOS: How to troubleshoot Bluetooth connections
http://support.apple.com/kb/TS4562
Check that you are in range of the Bluetooth device with which you are trying to pair your iPhone, iPad, or iPod touch. Most Bluetooth devices have a range of approximately 30 feet.
On your iOS device, tap Settings > Bluetooth and find your device in the list. If your device says Not Connected, tap the name of your device to attempt to connect it.
Tap Settings > Bluetooth and turn Bluetooth off and then on again.
Make sure that your Bluetooth accessory is turned on and fully charged or connected to power.
Restart your iOS device.
Tap Settings > Bluetooth and locate the Bluetooth accessory you are currently connected to or attempting to connect to. Then tap and Forget this Device. Try to pair your Bluetooth accessory again.
Note: You may need to re-enter your Bluetooth accessory PIN if your accessory requires one. Some common PINs are 0000, 1111, and 1234.
Restart your Bluetooth accessory by turning it off and then on again1.
Update your device to the latest version of software. See how to update your iPhone, iPad, or iPod touch.
If your Bluetooth accessory has upgradeable firmware, check to see that you have the latest version1, 2.
Thank you for using Apple Support Communities.
Take care,
Sterling

Audio issues, choppiness odd sounds

HP Pavillion DM4-2033cl
Windows 7
No error messages
I have been experiencing some audio issues with my DM4. They may or may not be related.
1. When playing audio from some sources like DVDs or CDs, when I press stop or pause I hear a brief loud distorted crunching sound
2. the audio in some games is choppy, (it will play for a second or two, pause, then play another second or two etc) (this makes me think there is either an audio memory buffer or processing issue.
I thought both could have been solved with a driver patch but I dont see anything newer that what is already on the machine.
Any suggestions.

HP Pavillion DM4-2033cl
Windows 7
No error messages
I have been experiencing some audio issues with my DM4. They may or may not be related.
1. When playing audio from some sources like DVDs or CDs, when I press stop or pause I hear a brief loud distorted crunching sound
2. the audio in some games is choppy, (it will play for a second or two, pause, then play another second or two etc) (this makes me think there is either an audio memory buffer or processing issue.
I thought both could have been solved with a driver patch but I dont see anything newer that what is already on the machine.
Any suggestions.

Bootcamp 3.1 and imac windows 7 64bit update not installing. Audio issues!

After many days of work getting the windows 7 working in bootcamp in my imac 27 (still with audio issues) I eagerly awaited the bootcamp update and imac updates.
Neither will install.
Then I find that according to tech support as of now I have to reinstall Windows 7 again for the updates to work!
It took me 5 full 8 hours days to get all my scientific programs installed and working, now I find I can't even simply update the drivers I need. I don't want to reinstall.
My only issues are audio.
Here they are:
1) The headset jack works fine on the Mac side, but in Windows 7, it causes the i7 intel CPU to go crazy. There is no CPU spike on the mac side.
2) The headset jack in the imac is a trrs jack. The same as in the iphone, a tri-band jack that has three bands, two audio out channels and one mic in channel. A trrs headset works fine on the mac side with using the headset mic (as in iphone) rather than the built in mic. (this provides much better quality for sound recording). I don't want to use a usb mike.
In Windows 7 the mic part of the trrs headset does not work.
3) In Windows 7 when going into audio devices recording, no audio mixer shows up, so when I do video or audio screen capture the only way to capture the sound is through the speakers and then back through the imac built in mic, rather than directly through the unit. (terrible sound quality) On the mac side the mixer element works fine.
Now I find from other imac users that even the new updates for the imac on windows 7 don't address and fix the audio issues. I am sure not going to go through 5 more days work only to find the audio issues still don't work.
I need these audio aspects to work properly though!
I have tried to get drivers for the cirrus logic audio card, but guess what there are none available and cirrus logic doesn't even recognize the board or offer drivers.
I have many windows programs I must have for my scientific research!I bought the top of the line Imac with all the bells and whistles because Apple promised that the machine could run Windows 7 in bootcamp natively!
It doesn't. This has been a nightmare of problems.
Is Apple going to step up to the plate and make good on their promises?
Does any one have a fix for any of the audio issues, or know how to install the new drivers without a complete reinstall of Windows?
Installing a few sound drivers and software should not require a complete reinstall. Getting the proper drivers for the headset jack audio in and audio out jack should be the most basic of fixes. Making the audio mixer work should be elementary.
If you are an Apple tech person or an Apple user that can help on these issues, please do!
Thanks, Dr. Duke
An American profesor in Europe.
PS I will post this under Imac windows 7 updates without a reinstall and under
imac Sound issues.

On another thread a few people have responded saying that their imac has the same situation, the cpu is going crazy and the imac gets hot with headphones or speakers plugged in. But this doesn't happen in the mac side.
If you have an late 2009 imac and don't have these audio issues, let us hear from you. If you don't, lay out the problem here.
Here is my last two cents in to the inquiry.
Not only does the cpu run crazy but the imac 27 gets very, very hot. Since I unplugged the headphones, it runs much, much cooler.
Certainly, some Mac engineers should take care of this problem, it seems it is universal on all the imac 27's and from what I gather, the smaller screened cousins too.
Also, we certainly want a stereo mix option for audio in or out, or what is called "what you hear" or wave out. Imac is supposed to be much geared to multimedia apps.
Finally, the mic jack part of the trrs set up MUST be fixed! A lot of manufacturers are going to headset combo jacks as they call them, mic in and stereo out on the same tribanded plug. But, the old single jack for mic in and single jack for stereo out are two tiny parts of the hardware and super inexpensive for the manufacturer. Why in the **** to go to the "advanced" triplug if the **** thing doesn't work.
Mac has a great reputation. I hope they remedy these problems right away.
Anyone whose imac 27 or 24 whose headset plug is working correctly. Let us know! I don't think anyone's is, but I think that few people understand that their cpu is running so much faster with the plug in, plus few even understand the combo jack and the triband, or trrs audio jack! Out of 4 audio technicians I talked to, not one of them knew what a trrs jack was or that you even have a mic in jack as part of the headset jack!
When I told one senior that it worked on the Mac side, he didn't believe for a while, thought my sound might be recorded from the onboard mic, but I proved it to him by tapping iaudibly on my iphone mic headset and and it showing up in garage band clearly and listening to big difference in audio.
As for a usb audio adapter, I am in a neon light environment and find that those adapters are more sensitive to electrical interference. Besides I want to use the headset jack as it was meant to be used!
Thats it.
Again, if anyone using an imac 27 and windows 7 64 or 32 doesnt have these problems, let us know! We are all anxious for a fix!
Best to all!

Logic 9.1.8 & Mainstage 2 - crashing frequently/audio issues

I have just uprgraded to this set up (though using the same sound card as I did on my Mac Book with Logic 8 & Snow Leopard prevously) - in order to avoid overloading which was happening on my previousl set up.. only to find that this new system seems very buggy - crashes frequently on Logic (Sudden Motion Sensor error - have disabled that now) and Main Stage freezes. Then a wierd echoey sound can happen - whereby any audio is echoed back from DAW, in Logic AND Mainstage.
I have down loaded two plug-ins/VST's since starting to use this new set up - an XILS Lab L.E. verision and a Crystal synth. I've downloaded the up to date Duet drivers from Apogee. (I have an Duet 1.5 that I used with my old set).
Have looked at the Console system log to try and understand what might be happening - it is FULL of text on occasions when Logic crashes - I am not tech savvy enough to unpick it though.
If anyone has any suggestions to help I would be grateful, thanks.
I do wonder if it is a Core audio issue though - given the echoiing that seems to occur...

I have just uprgraded to this set up (though using the same sound card as I did on my Mac Book with Logic 8 & Snow Leopard prevously) - in order to avoid overloading which was happening on my previousl set up.. only to find that this new system seems very buggy - crashes frequently on Logic (Sudden Motion Sensor error - have disabled that now) and Main Stage freezes. Then a wierd echoey sound can happen - whereby any audio is echoed back from DAW, in Logic AND Mainstage.
I have down loaded two plug-ins/VST's since starting to use this new set up - an XILS Lab L.E. verision and a Crystal synth. I've downloaded the up to date Duet drivers from Apogee. (I have an Duet 1.5 that I used with my old set).
Have looked at the Console system log to try and understand what might be happening - it is FULL of text on occasions when Logic crashes - I am not tech savvy enough to unpick it though.
If anyone has any suggestions to help I would be grateful, thanks.
I do wonder if it is a Core audio issue though - given the echoiing that seems to occur...

My iPhone 5 is suddenly having audio issues through the headphone jack.

So this is a strange situation, and I'll try to explain in depth so that someone might be able to suggest a solution. As reference, I have an iPhone 5 that I purchased in late-February. I've had every other model of iPhone except for the first iPhone, so I am pretty familiar with the device. I used to be on AT&T, and switched to Verizon when I upgraded to the iPhone 5.
Two days ago, I was on a six hour road-trip, and I'd been playing my music like normal through my car's auxillary cable. After stopping for lunch, I went to plug my music again, but once the music started to play, I realized that only the drums were playing at normal levels while the vocals were very, very soft. I switched through a few different songs, and realized that all the songs were being played at different levels; sometimes the backup vocals were normal levels while the instrumentation and lead vocals were quiet, or vice versa. I decided to plug my iPhone in to charge, and when I did this, the audio levels were all normal. However, the iPhone was NOT charging. I removed the charger, and the audio went back to being weak and distorted. I went back and forth at this for a bit, trying to figure out what was going on.
Since then and after some testing, I realize that my iPhone will now only charge anywhere EXCEPT in the car charger (I simply use my USB cable that came with my iPhone and plug it into the power adapter I have in the car). This morning, I tested the audio in my home speaker system, and I had the same audio issues. Only half the song's tracks would be at normal audio levels, while the other half would be at a very quiet, almost nonexistent level. I tried plugging my charger into the phone to see if that'd make a difference, but instead of the audio going back to normal like it does in the car, the music stopped and there was just crackling and very noisy distortion sounds.
I'm super confused and not sure what to do. This has never happened to me with any of my iPhones. I am updating my software right now, and am hoping that that may help somehow. Otherwise, I'm at a loss. Any suggestions as to what I should do would be greatly appreciated!

Do the new iMacs have digital audio out through the headphone jack?
Yes.
http://support.apple.com/kb/SP576

HP Slate 21 audio issue after KitKat update and reset

I have upgraded my HP Slate 21 from JB to KK. Now the sound quality is very bad!
I came directly from xxx.11 kernel and made factory reset but didn't get a good result. Please how can I fix this tremendous issue?

Hey @PauloTxR ,
Welcome to the HP forums.
I understand you're experiencing issues with sound quality on your Slate 21 PC.
Please review the following thread: HP Slate 21 Kit Kat OTA Update Fix for Audio Quality and LAN Connectivity.
This fix will resolve audio issues of a software nature resulting in the KitKat update. If your issue persists after applying the specific update mentioned in this thread and have done a factory reset, the issue is likely hardware related and not the result of the KitKat update.
If you have done the above and continue to have problems please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the following link to get the support number for your region: Phone Assist Worldwide.
Thanks.
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

Audio Issues with MacBook Pro (Late 2008)

I am seeing an occasional issue with my MacBook Pro (Late 2008). The Audio will go out... and instead you will just hear static-like clicking sounds when and audio even happens. For example... when you have the up/down volume notification on... and you change the audio volume.. you hear clicks. Or... when you open up a file that has audio.. you will hear the static-like click when the audio starts to try to play.
The work around per-se is to completely shutdown and turn the notebook back on. A simple restart does not seem to fix it... it looks like the system needs to have a bit of energy drain first. Which... worries me that this is a hardware issue and not a driver issue.
Wondering how many others are seeing this???

I went to and Apple Support Center last week and I asked some questions about audio because my MBP was having troubles too. The tech told me audio issues are very frequent on these machines and sometimes you have to change a part of the soundcard. He also added you have to bring the MBP to a support center if you're having the problem several times - in my case I'm waiting the next "crash" since I had only 2 issues so far... If you're under warranty go for a check up and see if it really needs assistance. Goodbye

IPhone 5 audio issues on calls with a headset

My new iPhone 5 has audio issues when I am calls with my wired apple headset. The caller cuts out like it having low reception. The ends of words and phrases are dropped as well as soft spoken words. Music works great through the headphones. Calls sound great on the handset just not on headset. Tried different headset. Still not working.
Any solutions?
Tim

The (same) problem exists when using the original Apple headset, which belongs to iPhone 4S, as well as using the Sennheiser MM30i. The new EarPods are the only ones that seem to work properly.
In addition to that, both headsets work perfectly well, when connected to iPhone 4S.
Eventually, both iPhone 5 itself and SIM card have been exchanged by the provider. Unfortunately the problem still exists.

T410 Extremely Annoying Audio Issues

I've had this laptop for two days now, and I have been experiencing an audio issue that resembles switching between mono and stereo or losing a signal on FM radio (without the white noise, though).
When playing a game like Civilization 4, the audio seems to cut out in one channel or the other (never both). This happens with my headphones and the internal speaker. Updating the audio drivers seemed to make it worse.
Is anyone else experiencing this?
Specs:
T410
Core i7 620M
NVS 3100M
4GB RAM
Bluetooth
Lenovo Wireless
WXGA+
128GB SSD

jagger, I went to sound properties and then to the communications tab. From there I saw that there was a setting that reduced volume when the computer thinks communication is going on or something, and I turned that off. It seems to have at least for now fixed my problems.

Hi , I suhail khan from india and i am user of iMac system 10,1.These days i am facing the sound enabling issue with my iMac system I am not able to hear sound in my iMac system.So kindly suggest me how to enable sound in my iMac . Please no the needful.

Hi , I suhail khan from india and i am user of iMac system 10,1.These days i am facing the sound enabling issue with my iMac system I am not able to hear sound in my iMac system.So kindly suggest me how to enable sound in my iMac . Please no the needful.

Take each of the following steps that you haven't already tried.
1. If you've recently plugged anything into the audio-out (headphone) port, plug and unplug it a couple of times.
2. From the menu bar, select
 ▹ System Preferences ▹ Sound ▹ Output
Check the settings. The internal speakers should be selected as the output device, the Mute box should not be checked, and the volume slider should be at least halfway to the right.
3. Look inside the headphone port. If a red light is coming from the port, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a headphone mini-stereo jack of the proper size.Inserting any kind of tool in the port may cause damage that won't be covered by your warranty.
4. Boot in safe mode by holding down the shift key at the startup chime. It will take much longer than usual. You don't have to log in; just reboot as usual (without holding any keys) when the login screen appears. (Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode.)
5. Reset the NVRAM.
6. Reset the SMC.
7. Reinstall OS X after backing up all data as a precaution. You won't need your backup unless something goes wrong.
8. Make a "Genius" appointment at an Apple Store.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to bare metal from any of them.) Don’t erase the recovery partition, if present.
*An SSD doesn't need to be zeroed.

Sound/audio issues s10e

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