MacBook Pro. No sound in speakers or headphones

Hi, I have no audio output since downloading Kies app. (unsure if related or just happened on the same day?) I have checked system preferences to ensure it is not on mute etc. Mac chimes on restart so speakers working.
Any advice of what to try next would be great. Thanks

Have you also installed OS X 10.9.4? There seems to be a rather sporadic bug (I believe only under 10.9.4 since it has only happened under that version for myself) that will not allow you to adjust volume nor mute the sounds. Basically, all sound is dead (except for the power-up chime). The speaker/sound icon will be greyed out at the top right corner of the screen. What fixed it for me was to simply power-cycle my MacBook. The icon came back and the sound worked just as if nothing happened. As I mentioned, it is very sporadic so it's not something you can really pinpoint as a valid issue. It has happened maybe four times since installing 10.9.4 when it was released. The update was performed on a clean 10.9.3 Mavericks installation using the combo update.

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My macbook pro 15' sound is not working, every time i turn on the internal speakers they just turn back off, and i have already tried putting in my headphones 5 or 6 time

my macbook pro 15' sound is not working, every time i turn on the internal speakers they just turn back off, and i have already tried putting in my headphones 5 or 6 time

Hi eleni_georgia,
Welcome to Apple Support Communities.
The article linked below provides some additional tips that will help you resolve the audio issue that you described.
Troubleshooting issues with no audio from built-in speakers on Macs
http://support.apple.com/kb/TS1574
Cheers!
-Jason

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

If you see a red light in the audio output port, then the internal switch is stuck. Insert the earphone plug a few times and see if you can trip the switch. If that fails, insert a cocktail stirrer and the like and jiggle it around inside. If that fails, take it to an Apple store and have the technicians at the genius bar do it for you.
Ciao.

No sound from speakers or headphones on my hp pavilion dv6-6c50us

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Hi,
Try the following.
Download the relevant IDT Audio installer on the links below and save it to your Downloads folder.
IDT Audio Installer - Windows 7.
IDT Audio Installer - Windows 8.
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When complete, shut down the notebook, unplug the AC Adapter and then remove the battery. Hold down the Power button for 30 seconds. Re-insert the battery and plug in the AC Adapter.
Tap away at the esc key as you start the notebook to launch the Start-up Menu and then select f10 to enter the bios menu. Press f5 to load the defaults ( this is sometimes f9, but the menu at the bottom will show the correct key ), use the arrow keys to select 'Yes' and hit enter. Press f10 to save the setting and again use the arrow keys to select 'Yes' and hit enter.
Let Windows fully load - it will automatically load an audio driver, but just let this complete. Then open your Downloads folder, right click on the IDT installer and select 'Run as Administrator' to start the installation. When this has completed, right click the speaker icon in the Taskbar and select Playback Devices. Left click 'Speakers and Headphones' once to highlight it and then click the Set Default button - check if you now have audio.
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

When instant streaming Netflix on my Macbook Pro, the sound is very very low even when sound controls are set at highest level.

When instant streaming Netflix on my Macbook Pro, the sound is very very low even when sound controls are set at highest level. I do not have this problem when listening to TV or watching movies streamed from DishNetwork. I contacted Netflix and they had me install a newer version of their software Silverlight... this did nothing to resolve the issue. They were not familiar with the issue.

Well if your on 10.6.2, you need to software update to 10.6.8
Perhaps you need to adjust the Silverlight (Microsoft DRM video plug-in) sound level itself too
Run a check here to see if your current on your Silverlight (works for all browsers)
https://www.mozilla.org/en-US/plugincheck/
Use another browser like Firefox and see if it continues.
Try another video file. They all have their own sound levels too.

Macbook pro output sound has developed an echo but is okay when using iTunes

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Boot the MBP with the OPTION key down.
The display will show two HDD icons. Select the recovery partition (on the right).
From the 4 Option menu, select the Mavericks install option.
Follow the directions.
Butttterfly wrote:
Will this effect anything on my computer such as erasing anything?
It should not, but always have a backup. Things can go wrong.
Ciao.

Macbook Pro no sound from internal speakers or headphones

I have a macbook pro (mavericks). There is no audio coming from the internal speakers and when headphones are plugged in there is still no sound. There is no red light coming from the headphone port either. Any advice?

Try plugging the headphones in and out 10-12times, while toggling the volume and mute buttons.
Have you tried cutting the end off a cotton swab and GENTLTLY swabbing the the headphone swabbing the port 9;00 clock to 3:00 clock, there is a micorswitch that some times gets "hung up" and this can free up the witch.
Also you can try going to to applications/utilities/ Audio MIDI Set up. app and see if you can select built in there.
To get more aggressive you can try these options:
Close all windows and quit all applications.
Click "Go" menu in the Finder menubar.
Select Computer, then Macintosh HD > Library > Preferences
Open "Audio" folder.
Right click these two files and select "Move to Trash".
com.apple.audio.DevicesSettings.plist
com.apple.audio.SystemSettings.plist
Close the window. Restart the computer
Go to Applications/Utilities/Audio MIDI Setup/Built-In Output/Output and in Format change from the default 2ch-24bit integer to any other format (say, 2ch-32bit float). This should activate the headphone jack. I moved the format back to the original 2ch-24 integer setting and the headphones continued working. So it seems that (for some reason) the original default setting does not recognize a headphone being inserted, but after performing this "resetting" it seems to come to its senses and behave properly from then on
if these do help your issues, please post back, there may be other options.
It is best to start a new post, rather adding on to an already existsting, as you will get more people looking at it, and thus offering more advice/sugestions.

HT2494 2012 MacBook Pro - no sound from internal speakers, red light in headphone port

Mid 2012 MacBook Pro 15".
I normally use external speakers plugged into headphone jack.
The other day I unplugged the external speakers and when I re-booted my Mac, I got the start up sound
but I have no sound coming from my internal speakers. In System preferences sound output I see no entry for internal speakers.
I also notice a red light shining in the headphone jack port. I see on youtube that this problem is rather widespread.
Some suggest using a paper clip to try to turn the light out, but I am not doing that.
I have Lion installed, tried using the MIDI-app to reconfigure the speakers, but I only get sound if the headphones are plugged in.
Is this a software or hardware problem?
I have a genius bar appointment today at my local Apple retail store, and my mac is still on warranty but this
is troubling that you spend $2300 for a laptop and after a bit of regular use the internal speakers no longer work.
Any ideas?
thanks.

I agree Nick - it is a concern especially on such a basic function (sound) - Linc is right, the issue is microswitch, sounds like a bad design or a huge batch of sub quality switches, checking the forums this issue is common on MBP's.
Judging by the date and lack of further activity I assume you managed to get yours fixed at the genius bar ?
I finally fixed mine myself but posting reply for others who have same issue as this - however buyer beware folks, try this at your own risk !!!
The fix won't be liked by Apple Support, the genius bar, or the repair shops but it worked for me after over 12 months of using headphones / external speakers - WHAT A PIA !
Method -
Held Macbookpro on it's side with screen open and headphone/ audio port facing toward ground.
Took WD40 can with straw dispenser and placed straw inside audio port - sprayed 3 or 4 one second burst of WD40 into port.
Held MBP that way for 30 seconds giving MBP a shake to drain WD40 out
(I performed this whole excercise outside where the WD40 could drain out without an issue ;-)
I then took an old set of headphones and re-inserted / removed them from the audio port approx 20 times in and out with music playing on the MBP - intially when inserted music will only come from headphones then eventually MBP internal speakers start working !
I've tried everything else including the cocktail stick and bent pin inserted inside the port to try and free micro switch - nothing worked it was stuck fast.
As stated, can't endorse this for anybody else - you do so at your own risk - just stating this is what I did to get mine working again !

Macbook Pro + M-Audio Studiophile Speakers. VERT quiet sound output!

Hi All,
Kind of a newb here - so I'm not sure if I'm going about this in the right way or not. Here's what's going on: I have an M-Audio BX5a speaker plugged into my Macbook Pro via the headphone jack (1/8" -> 1/4" cable) and even with the sound maxed on my MBP and BX5a, the volume coming out of the BX5a is extremely quiet. I Tried playing music through iTunes to do a sound test (this is my 1st time using these speakers) and the music is only audible when I'm sitting right next to the speaker. I tried searching through several pages of search results but couldn't find anything. I have a hunch that this is a Mac OS issue and not an M-Audio one, since I had a similar problem with my last macbook. All help is GREATLY appreciated! Thanks!

Adjust the *volume slider within iTunes* all the way up, turn the master volume control down to near minimum, and then test again, gradually turning the master volume slider up to see whether the results are better.
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I have a MacBook Pro Retina and the audio only works if I plug in my headphones and then pull them out. I hear the ding when I turn the computer on but nothing else once it's booted. Does anyone else have this issue? I confirmed that my sound settings are correct.

If you see a red light in the audio output port, then the headphones will be receiving the audio signal. When you insert and pullout your headphones you are probably tripping an internal switch that was stuck and now enables the sound to come from the internal speakers. This is a normal solution to that problem, but really should not occur. A trip to the Apple store genius bar might be a good idea. You still must be within the warranty period.
Ciao/

Macbook Pro - No Sound from internal speakers + No red light

Okay so I know this a very famous issue (I've seen over a hundred threads with people having the same problem) but the problem I'm having is something I haven't seen anywhere else. I recently tried to fix my headphone jack on my Macbook pro early 2008 model when it DID have a red light emanating from it but when I finally managed to turn it off with a little wiggle from my paperclip the sound still didn't turn back on. In my system prefs my sound output still displays "Digital Out" and no other option for internal speakers. I know my speakers are fine because I can hear the startup chime. Also, I had a broken piece from my headphones stuck inside the jack a few years back and I retrieved it in....let's just say, not the most professional way to do it (I completely destroyed my headphone jack while attempting to retrieve the broken piece and now the hole is too wide for any headphones), though afterwards the internal speakers still worked for a while, it was just the headphone jack that was messed up.
Basically what I'm trying to say is: is there a way to enable my internal speakers without using any hardware methods? Because I tried the paperclip fix and the red light did turn off, but still no audio + sound prefs still shows 'digital out'. I really don't care much for the headphones jack anymore because I'll just override it with some USB headphones.
Thanks in advance
Some Images:
'Only displays Digital Out'
'My jacked up headphone jack (no pun intended, although very relevant)'

I agree Nick - it is a concern especially on such a basic function (sound) - Linc is right, the issue is microswitch, sounds like a bad design or a huge batch of sub quality switches, checking the forums this issue is common on MBP's.
Judging by the date and lack of further activity I assume you managed to get yours fixed at the genius bar ?
I finally fixed mine myself but posting reply for others who have same issue as this - however buyer beware folks, try this at your own risk !!!
The fix won't be liked by Apple Support, the genius bar, or the repair shops but it worked for me after over 12 months of using headphones / external speakers - WHAT A PIA !
Method -
Held Macbookpro on it's side with screen open and headphone/ audio port facing toward ground.
Took WD40 can with straw dispenser and placed straw inside audio port - sprayed 3 or 4 one second burst of WD40 into port.
Held MBP that way for 30 seconds giving MBP a shake to drain WD40 out
(I performed this whole excercise outside where the WD40 could drain out without an issue ;-)
I then took an old set of headphones and re-inserted / removed them from the audio port approx 20 times in and out with music playing on the MBP - intially when inserted music will only come from headphones then eventually MBP internal speakers start working !
I've tried everything else including the cocktail stick and bent pin inserted inside the port to try and free micro switch - nothing worked it was stuck fast.
As stated, can't endorse this for anybody else - you do so at your own risk - just stating this is what I did to get mine working again !

Macbook pro retina sound buzzing

Just bought a brand new MacBook Pro Retina, 13-inch, Late 2013 yesterday. I absolutely love it, but I have a small problem. On certain itunes movies, I have noticed, when the sound is high, that it will creat a very annoying buzzing sound. Is it a problem with the mac or the movie? I don't no. If there are any solutions to this problem, I would be very grateful to here them!

I have a simular problem. It happens all the time with headphones in or if I play sound through the speakers, in fact it happens once the sound is up more than half way even if nothing is playing.

MacBook Pro Retina Sound Issues

Hi folks,
I used my MacBook Pro Retina with no difficulties over the last 2 month,
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Often, when I just want to play a video on YouTube or listen to some
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song or video.
It sounds a bit like the soundcard is having difficulties to play back the
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Maybe someone else experienced the same.
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Ps: I have the MacBook Pro Retina Mid 2012 (2,6 GHZ; 16 GB RAM; 512 GB SSD) Version,
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Im terrifyed right now. I just got home, sat down and plugged my headphones into my Mid 2012 MacBook Pro Retina to start producing some music. As fast as I adjusted the volume on the MB a loud noise was heard in the right ear. I played a song in iTunes to discover that the sound was slightly distorted and very noisy in the right ear while you could hear the music normally in the left ear. I switched between an additional pair of headphones and a pair of speakers but got the same result. I checked the preferences and rebooted the MB without any luck.
I have two theories why Im having this problem. Earlier today I plugged my computer into a soundcard via 1/8 RCA-cables, allowing me to play music through my schools monitors. The soundcard had Phantom Power enabled but I disabled it quickly when I realized. The cable I used was also a bit dodgy, it was noisy and didnt work properly. Could this malfunctioning cable or the fact that I Phantom-powered my MB have fried my AUDIO JACK?! I contacted my teacher but he said that this cant be the reason for my issue.
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Im frustrated, frightened and very eager to make some techno. Any help or tips would be eternally appreciated!
Thanks in advance!!
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No sound through speakers or headphones

The sound on my Macbook pro isn't working. It won't play any audio through my speakers or headphones. Before the volume symbol in the menu bar turned to a grey color, when I would change the volume using the keys on my keyboard, I would see it change on my screen and hear a sound, but it wouldn't change in the menu bar. This isn't the first time this has happened either, but the last time it was just my headphones; I was still able to listen through my speakers. The last time when my headphone jack wasn't working, I saw a red light on inside when I wouldn't have headphones plugged in. Does anyone know how to fix my current lack of audio problem and what the red light meant before?

Hi there sb757010,
I would recommend taking a look at the troubleshooting steps found in the article below.
Troubleshooting issues with no audio from built-in speakers on Macs
http://support.apple.com/kb/TS1574
-Griff W.

Transferred a video from phone to macbook pro but sound is not working.

I transferred a video from my phone to my macbook pro. the transfer was successful but the sound is not working on the computer, totally mute. the video is playing on quicktime player. the computer sound is on. the video was working fine on the phone and when i transferred the video, if this makes any difference or anything, the phone's media volume was on full.
I very much appreciate the help and feed back, thank you!

I have this same issue and have been struggling with it for a while. I really just need to get it into Apple Store to be fixed most likely - but avoiding the hassle and time needed to do so.
Things I've come across:
Something inside of the headphone jack is not right, such that it randomly thinks headphones or some other type of optical audio device are plugged in. you will see a red light inside the jack occasionally when it happens.
You might try doing PRAM and/or SMC reset ( http://support.apple.com/kb/HT3964 )

Yosemite is messing with my new Retina Macbook Pro's sound output, help.

I just got my new Retina Macbook Pro 2 months ago and have been noticing some audio output issues. When I try to connect an external third-party audio device to run my KRK monitors my computer does not recognize the device and will not switch the audio output. After trying to set it manually my macbook won't even revert to the internal speakers for output and then I have to reboot my pro in order to get audio output again. This will happen randomly throughout the day after my computer has been in sleep as well, and sometimes the volume buttons get greyed out as well. Please help me with this issue as this is a new computer and it is becoming a nuisance. Even when connecting through HDMI, my audio output does not function and no sound will come out of the TV. I realize that this is probably a Yosemite glitch, but I just need to know if there is any fixes for this issue. Thanks so much for your time,
Sam Migliazza
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MacBook Pro. No sound in speakers or headphones

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