IMac sound problems

My IMac is from late 2010. But right after I instaled lion i've been having a weird sound problems. so programs that I open when my mac frist starts up the sound works fine but any program i open up later i can't hear any sound from it!!!

Go into your sound preferences and take a look at the output tab and make sure the internal speakers are selected.

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Imac sound problem

Approx 6 months ago started having sound issues with imac which is set up as a media center. The imac output is connected to an AV receiver via optic cable. The problem is no sound on imac programs safari, itunes etc when starting from sleep if a program is left open prior to going to sleep. Movies have picture but no sound, itunes has no sound and does not start playing the song. Quit open programs and restart computer or put to sleep and wake the sound is restored. Eye tv sound is not affected. If programs except eye tv are quit prior to going to sleep there are no issues on start up. Disconnect the AV receiver and the problem still exists?????????????

Thanks for the info, below are the results.
Started computer from sleep no sound on system. Checked Audio Midi System as suggested Audio Default and System set to Unknown Device. Reset both to Built in Output and checked sound still no go. Force quit itunes and put to sleep and reactivate sound all good Audio Default and System remained in Built in Output. Watched recording through Eye TV for about an hour then checked sound through itunes, no go. The Audio Default and System had both reverted to Unknown Device yet the Eye TV sound was not affected???????
Quit all programs last night except Eye TV and let mac go to sleep. Checked this morning sound is fine. It appears that when itunes, safari etc is open and not use for a period the Audio Default and System reverts Built in Output to Unknown Device.
BDAqua it looks like your longshot has identified where the issue is occuring and thank you. The next stage is determining why and how to fix the issue................appreciate you comments.
Cheers

Is there a fix yet for the no sound problem with lion on the iMac without having to restart every time I switch the computer on?

Is there a fix yet for the no sound problem with lion on the iMac without having to restart every time I switch the computer on?

Try booting in Safe Mode by holding the the shift key immediately after powering on your system. Safe boot mode will for a directory check of your startup volume, then load only the required kernal extensions (kext files), and deletes some cache files. Once the system boots into Safe Mode you can simply restart the system to see whether the issue has been resolved.
If you still have the issue try resetting the SMC by shutting down the system and disconnecting the power cord for ~15 seconds, then reconnecting the power cord. Next, reset the parameter RAM (PRAM) by holding down the option-option-P-R keys after powering ON the system. Wait until the iMac restarts twice, then let the system boot normally.

Imac 27inch (2011) sound problems

Hi all
I have the top spec 27inch imac quad-core 3.1 ghz 4 gb ram baseline model and I am starting to expireance sound problems. After a little while of having my imac on the internal speaks will just stop outputting sound. to fix this i have to put the imac to sleep and wake it up again or plug in and unplug headphones.
thanks

I would But i dont think it is a hard ware issue I think its a software issue i was just wondering if any one else has this problem

HT3983 i have a sound problem when i install windows 7 32 bit on my imac

i have a sound problem when i install windows 7 32 bit on my imac

Did you download and install the Windows Support software? First step in Bootcamp Assistant is to download the support software. Then did you install the support software from within Windows?
Read the Bootcamp Install instructions. http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf

Imac G5 isight sound problems.It's muted!!!

Hello to everyone.
Since I installed Leopard I've been having an extremely annoying sound problem. It has happened 4 times so far. When I switched on my mac and tried to listen to some music, the sound was not working at all! I went to system preferences/hardware/sound and all the topics were grey! It was like I didn't have any sound! After repairing the permissions, verified disk and repaired disk with the Leopard DVD everything worked ok, but after a few days the same think happened again and again and again... Please help me because it's VEEEERYYYY annoying to waste my time with these thinks that were suppose to work in the first place.
Thank you in advance.

To Apple Discussions!
See Knowledge Base Article http://docs.info.apple.com/article.html?artnum=93240 How to Troubleshoot iSight
If the solutions in the above Article do not work, then suggest that you repost over in the iSight Forums

IMac sound intermittently stops working

I have an intermittent sound problem with my new iMac. Periodically, sound stops working in certain user accounts; but, works fine in others. The only way to temporarily resolve the problem is to reboot the computer. Haven't found a pattern to when sounds stops working... please help.

I have the same problem on my 21" iMac purchased in early 2011. My wife's user account is fine. The settings in System Preferences and Audio MIDI Setup are correct. I've tried deleting relevant plist files, all to no avail. Any ideas, anyone?

TS2090 Apple TV mirroring - sound problem. Tried everything. It's ****.

I'm feeling totally exasperated. I've tried every 'solution' to the inherent Apple TV mirroring sound problem. Why don't Apple just fix it?? All I want to do is be able to view my computer video with sound when i want to. I don't feel that I should have to spend up to and over an hour trying repeated combinations of turning things on and off, entering code into Terminal, etc. EVERY TIME THAT I TRY TO MIRROR THROUGH APPLE TV. It's ridiculous, aside from the cost of buying the unit, I had to upload Mountain Lion despite the fact that my new (Early 2012) imac should have been on spec. That took hours and it still doesn't work. Very dissappointed, Apple have lost my brand loyalty for such an obviously fixable thing. ( I don't think that they read these comments). hope this makes you think twice before buying. Yours, m

I found a fix for this problem thanks to a friend of mine who I can only assume did a little research online!!
The problem I had was having AirParrot once installed, and after the recent 10.9.2 update, the third party app messed up the way Mirroring was working..
Here is the fix:
1. Open Terminal in /Applications/Utilities.
2. Run these commands respectively:
sudo rm -rf /System/Library/Extensions/APExtFramebuffer.kext
sudo rm -rf /System/Library/Extensions/AirParrotDriver.kext
sudo rm -rf /Library/Extensions/APExtFramebuffer.kext
sudo rm -rf /Library/Extensions/AirParrotDriver.kext
This will uninstall kernel extensions related to AirParrot. Other solutions around the web being posted are missing the extensions within /Library/Extensions.
3. Enter your administrative password when prompted.
4. Restart your computer.
I tried it once again and it worked like a dream!!!
Here is the article for reference:
http://9to5mac.com/2014/02/28/os-x-10-9-2-breaks-airplay-mirroring-and-desktop-e xtensions-to-external-monitors-for-some-users/
Many Thanks for all who tried to help, and especially Wasim!!
Hope this helps anyone with the same problem in the future!!

My iMac sounds terrible! There's like a loud fan or motor running?

Hello,
My iMac sounds like a plane taking off! I will have to confirm what version of OS I am running but does anyone else have this issue? Is it the fan or is it a hardware issue? It has become a little slower over the last couple of months and it's only 8 months old!
Please help!

Problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset:
Resetting the System Management Controller (SMC)
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.

AJA io HD and hissy sound problem...anyone else ?

Is anyone else having problems with their sound using the AJA io HD. I received mine just under a week ago and have experienced what can only be described as a noticeable hiss with the VU meters jumping 2 notches even in quiet sections in the FCP-6 timeline. I tested this to the nth degree even installing a fresh version of Tiger and FCP-6 with no effect. I also tested the AJA on an iMac with the same results. I did check my sound was 48kHz 16bit throughout and that the MacPro/iMac sound preferences were set correctly. I have come to the conclusion that the unit was faulty and has been sent back, I will keep you posted. PS. The picture quality was excellent. I was a tad surprised to discover that this unit supposedly built in conjunction with Apple does not have Leopard drivers yet though we are informed they are "coming soon". Anyway...I would be happy with a working model for the time being.

I'd send it back for a new unit, but doesn't blown out whites also cause a hiss on audio lines or am I dreaming (been 20+ years since electrical engineering school and I haven't used it, ever).

IMovie 6 transition sound problem - transposed soundtracks? Any solution?

Hello,
I can see that this problem has been discussed many times, and I am getting by using some of the suggested "work-arounds", but I was just wondering if there have been any actual solutions to this problem? I never had this problem before, and I don't exactly know when it started, but it is VERY ANNOYING! I have iMovie6 and a 2.4 GHz iMac with an Intel Core 2 Duo. I am still using Leapard, OS version 10.5.8 simply because it seems to work fine, and I haven't needed any of the newer features. However, if this transition issue would be corrected with an upgrade, I would gladly upgrade! Has anyone found a solution for this transition sound problem?
Thanks,
Lincoln

Lincoln
Like you I find this very annoying .
For me "extracting audio" sometimes results in the audio becomming out of sync with the video, also doing the "update" mentioned above does not fix it for me; I must be doing something wrong?
Having opened iMovie 6 to try "update " fix and failed I started to try a few things.I think I have found a solution that works.
The following sounds complicated, but is not; reading twice is recommended
Most of us apply a string of transitions from left to right i.e. between clip 1 and 2 then between 2 and 3 then 3 and 4 and so on. The audio glitch will occur in say transition 2/3 because there is a transition immediately before it in 1/2 and likewise a glitch in 3/4 because of the transition immediately before in 2/3 .
I find you do not get a transition audio glitch between 2 clips if there is no transition immediately before.
So the simple solution is having sorted all your clips and edited, apply the transitions in reverse direction i.e. from the end of the movie working towards the beginning; transition between clip 39/40 then 38/39, 37/38 and so on down to 2/1.
If you do not want to start at clip 40 for some reason you can say do (assuming you want all clips to have transitions) clips 5 down to 1, then say 15 down to 10, then say 10 down to 5 etc etc. But you will notice that when you do clip 5/6 in this scenario you already have a transition for 4/5 so you will get an audio glitch for 5/6.
The solution here before doing transition 5/6 is to split video at playhead somewhere in clip 5 so that there is a break in the transitions but no interuption in the video.
If you are able to apply transitions in one session then working backwards from the end is the easiest solution and takes no longer than any other method.
If you have to do it in segments still work backwards but spit clip at playhead as above when approaching an already applied transition in order to create a "transition break".
Alternatively a quick and dirty way might be to split every clip in 2 before applying transitions and apply the transitions anywhere except at the splits.This way you should not have to worry what order or direction you apply them in.
If you try this let me know how you get on.

Intermittent sound problems (circle with slash) since 10.9.1 upgrade.

My 27" iMac (mid-2011, 2.7 i5, 16g RAM) has had intermittent sound problems (circle with slash) since I upgraded to 10.9.1. I've reset the PRAM, used Disk Utility on the file permissions, tried Audio Midi, and sound prefs steadfastly refuses to use the internal speakers.

Did you install the latest driver set for the device? there is a new release on motu.com for mavericks.
rachel

Battlefront WARPED SOUND problem

Hi,
Im baffled by this one, hopefully someone can help me ?
I loaded Battle front for my G5. I downloaded their(aspyr) latest update/patch.
I also check their Forum for discussion regarding sound problems
I also am running a G5. 2.8 ghz, 2gig ram, ati 9600 pro with UPDAED DRIVERS, and LATEST QUICKTIME for my current OS.
PROBLEM::::
When i launch the game the SOUND is WARPED, in sound OPTIONS i click on sounds to adjust and sounds are DELAYED and WARPED.
It sounds like a cassette tape player with dead batteries
In game play its the same, WARPED SOUND all over the place.
Please, how can I fix this ?
Thank You

Hi,
After weeks of no bother, I had a similar issue, with the same game, on my G5 iMac...
It was resolved after the disc permissions were verified and then repaired.
Applications - Utilities - Disc Utility...
Hope this helps
Tony

Imac sounds are "messy" and "fuzzy"

Sp I,m not happy with the sounds on my IMac (21.5",late 2010,3.06mhz I3)...I tried ( just to test) Boom and Bongiovi DPS audio devices and then the sound started to get fuzzy...I have removed them now both,but the sounds aren't good...I have Creative Gigaworks t20-speakers (through headphones connection).I may have messed up the audio- & midi settings so what are the Original settings for my Imac ? Could the audio devices (boosters) have damaged the speakers ? This sound problem is especially with Itunes,I know prefre to play my music through DJAY 'cause it sounds better.Sorry,I don't know quite how to explain this,but this bothers me...Any help and tips wellcome,THANK YOU !

Still no solution...Is there anything to do in Audio-midi settings ? Is it normal that it shows "Aggregate-audio-device" in the listing ? There shouldn't be any extra devices anymore....What are the default settings ? Getting desperade...

I have sound problem in My Cq40-144TU Laptop

Hi,
I have Cq40-144tu laptop. i am't hearing sound from internal speaker but sound is hearing from headphone. I have configured my system many time. Last got to shop and they also format it and reconfigured but still this problem is showing.
But I was hearing sound from speaker when i chat in gtalk and then i heared sound from window media player and other application also for 5 to 10 second only. every time some text is recieved i hear sound for 5 to 10 second.
please tell me what is problem in My Laptop. i have window 7 ultimate operating system.
Please help me sir

What sound problem - no sound on anything, no sound on some apps ?
Have you got notifications muted ? Only notifications (including games) get muted, so the iPod and Videos apps, and headphones, still get sound.
Depending on what you've got Settings > General > Use Side Switch To set to (mute or rotation lock), then you can mute notifications by the switch on the right hand side of the iPad, or via the taskbar : double-click the home button; slide from the left; and it's the icon far left; press home again to exit the taskbar. The function that isn't on the side switch is set via the taskbar instead : http://support.apple.com/kb/HT4085
And for future info typing in all capitals is considered to be SHOUTING

IMac sound problems

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