Connecting to audio line out freezes QuickTime!

Today for the first time I tried plugging my Apple speakers into the line out socket of my new Mac Pro instead of the headphone socket, only to discover that this prevented any QuickTime files from playing. It also caused FCPX to freeze up. Has anyone else experienced this strange phenomenon?
This was after installing the latest Yosemite update, but I cannot say whether this made any difference as I did not try this socket previously.

The Mac Pro (Late 2013) has two distinct audio ports. Audio devices you connect to the port will appear in System Preferences > Sound > Output.
Audio out: The left audio port with a speaker icon is a 1/8" stereo minijack for audio line out. It can use analog audio and digital S/PDIF fibre optic cables. Note that this port does not support headsets or microphones.
Headphone port: The right audio port with a headset icon is a 1/8" stereo minijack for headphones. When you plug in headphones to this port, sound is redirected from the internal speakers to the headphones. If the headset contains a microphone, it will appear in System Preferences > Sound > Input.
As with handling audio processing errors on a per-application basis, you can try toggling some audio format and input/output device settings in the Sound panel of System Preferences, or using the Audio MIDI Setup utility that is in your Applications > Utilities folder.
If this does not work, then you may need to reset the audio daemon, which can be done by rebooting your system; however, this may not be desired if you are in the middle of a workflow and would prefer to keep your system operating. In these cases, you can manually reset the audio daemon, by simply forcing it to quit. This can be done by opening the Terminal utility and running the following command: sudo killall coreaudiod

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Problems with audio line out jack

When I connect the headphones in the audio line out inmediately change to "Digital out" and I don´t listen nothing, but when the headphones is unplugged I hear the music through the internal speakers normally. What can I do about? Thanks.

I need to change the logic board? or only the audio line out jack can be replace?

Audio line out

my subwoofer dell was working on my mac, but I moved it from the room to the family room and my Dell speaker and subwoofer stoped working ,,, wonder how I can test the audio line out on the mac, or if you have any ideas
thank u

Are you sure you have everything connected properly? Are you sure that your audio designation in System Preferences is set correctly?
Describe in detail how you connect your speaker system to your iMac.

Audio line out disables periodically

Running Yosemite 1010.
Late 2013 MacPro
Audio switches from external speakers to internal speakers. Restart returns connection to external speakers.
No change is made to Audio Line Out port.
Please advise.

What speakers do you have... USB or Line ?

Audio line out buzz, clicks and ground hum all of the sudden?

I've developed a nasty, sharp, buzzing from my audio line-out on my iMac G5, and it's gets twice as loud and unbearable when I put the computer to sleep. When I plug in a pair of iPod headphones and play a song, NO AUDIO WHATSOEVER appears in the phones, just a steady endless series of audible clicks. All connections were tested with new cables, etc., and it didn't make a lick of difference. My guess is that this issue has something ot do with the "optical out" dual-purpose jack 3.5mm jack, like it's internal switch is stuck half-on or something-- I saw a red light when plugging in the audio cable. Has anyone experienced a problem like this on their machine?

I've read about the red light here before. The jack does indeed read the impedence and then ping software to let it know something's attached. Perhaps try several different plugs in addition to the cables you've already tried. I know some speakers and headphones here at my place have WAY different impedence values.
Some people have been able to trouble shoot by creating a dummy user account to verify it's a software problem (the problem is gone in the new account). Other people have been successful resetting the core audio by running the GarageBand program. Not sure these tricks will help you, as 60 cycle hum leads me to think there's a hardware problem.
Let us know if this is helpful (as I only need 5 more points to hit 1000!)
Ed

Damaged Audio line out jack

Hope to get some advice here - after messing with my MDD to get a Time Capsule up and running (while changing the ethernet connections a couple of times), I managed to thwack the audio line out cord from the box enough to damage it - I noticed one channel of the audio was gone, then after finding the jack is loose, wiggled it just enough to make it worse or better depending where the cord sits... I am using powered speakers so the apple speaker mini-jack doesn't seem to be a good option instead of the line out...
The question is, can this be repaired without replacing the logic board?
Many thanks in advance!
David

Hi, David -
Repairing that component could be not inexpensive (if done by a tech shop) or risky (if done by someone else).
As an alternative, you could consider using the Griffin iMic Adapter.

Faulty audio line out

The audio line out on my G5 dual-core has stopped working. There is a tiny amount of output, but not enough to drive the speakers. The headphone jack in front works. Does this mean the sound card is bad? The machine is less than one year old - should I take it somewhere to be repaired? Does the sound from the headphone jack come from the same sound card?

Yes, I am using powered speakers.

Premiere Pro CC & New Mac Pro - Audio Line Out Issue

I'm having a few issues with the audio line out on the new Mac Pro. For some reason, Line Out locks into Premiere Pro. When I switch programs, the audio line out device stays locked to Premiere Pro and the only way to get other programs to be able to output audio when Premiere Pro is not current application, is to go into System Preferences > Sound and click onto an alternative output and then click back onto Line Out.
Thanks,
Jon

Thanks.

Possible to use audio line out and in simultaneously ?

In the current version of MacBook Pro Retina is it possible to use the analog audio line out and line in both simultaneously ? That is playback as well as record analog audio at the same time.
Does anyone know what is the audio hardward platform (Codec, DAC, ADC, etc..) in this machine ?
Thanks!

Air has a headset jack.
You can use a splitter
Mics should be USB capable for best results, almost all headset mics are junk quality.
then monitoring or listening thru the headphones
consider using a PRO MIC , such as an Audio Technica AT2020 USB
http://www.amazon.com/Audio-Technica-AT2020-USB-Condenser-Microphone/dp/B001AS6O YC/ref=sr_1_1?ie=UTF8&qid=1390776580&sr=8-1&keywords=at2020+usb
or better still use one of these with pro XLR mics:
http://www.amazon.com/Focusrite-2i2-USB-Recording-Interface/dp/B005OZE9SA/ref=sr _1_1?ie=UTF8&qid=1390776526&sr=8-1&keywords=2i2

Audio line out port (Apple iPad Dock Connector) not working Iphone 4 os 4.2

For my new iphone4, the audio line out port (Apple iPad Dock Connector)is not working. Both using a cable to mini jack (3,5 mm) or in dockingstation.
I'm using OS 4.2.
IS this a bug?
Thanks
Hans

I just came back from the Apple store. My iPhone4 DOES have a working line out when plugged into a Apple name brand dock connector. I don't know why my SendStation refuses to work only with the iPhone4 yet works with iPods, etc..
Solution? I'm buying an Apple iPod dock connector for home and will try to find something with line out for the car - Apple says they do not make one.

Audio Line Out Stuck in Optical Mode Toothpick Technique

My macbook's audio line out is stuck in optical out mode. (red light and everything) Many have had this problem and many have fixed it with a toothpick. I want to know how this is done. People just keep saying that they fixed it without explaining what exactly they do with the toothpick. (I'm looking for incredibly specific instructions) Any help would be great!

Not much to say, fixing problems while the warranty is still good seems like common sense ...

Audio line-out issues

Audio line out not working. Had done up till updated Snow Leopard recently. Anybody had same problem? Any fixes?!

Problem "solved". Uncertain about why though.
Disc Repair? The verify disc did show up that it needed repairing.
Resetting PRAM?
Or the speaker cables ? I put in another cable of the same type but both cables now working fine. So...?
It may be simply how the steps are sequenced.
But a nuisance when it happens.
All part of the rich fabric of Life, The Universe and Everything? Possibly.
Thanks to iCare and X423424X

Solved: Noise in audio line-out when connected to an external video (DVI)

Ok. I kept looking for possible solutions to this problem. I finally found the solution! If you lift the ground out of the audio cable, completely disconnect the ground conductor, unsolder it, cut it.. the noise goes away. Here's why I had the problem in the first place. Common practice wiring when going from unbalanced to balanced, or from a two conductor+ gnd (stereo) to two mono+ gnd, calls for a specific wiring with the ground/shield conductor. (BTW, most commercial audio cables like those sold in the Apple store will exhibit this problem: e.g. any 1/8" stereo to L/R mono RCA or 1/4" connectors) If you disconnect it, running just the signal conductors, you isolate the systems' grounds. This seems to fix the problem.
To Apple's credit, after looking for some information on the audio specifications of the MacBook Pro, I found in the developer's section the Audio Developer Note for the MBP in which the following was stated:
"For best results, equipment plugged into the line/headphone output jack should not connect the audio ground to other grounds, such as the chassis or "green-wire" ground."
I hope this helps others.
Apple: Take notice. Please print this info in the user's manual to avoid some disgrunted users!

Ok. I kept looking for possible solutions to this
problem. I finally found the solution! If you lift
the ground out of the audio cable, completely
disconnect the ground conductor, unsolder it, cut
it.. the noise goes away. Here's why I had the
problem in the first place. Common practice wiring
when going from unbalanced to balanced, or from a two
conductor+ gnd (stereo) to two mono+ gnd, calls for
a specific wiring with the ground/shield conductor.
(BTW, most commercial audio cables like those sold in
the Apple store will exhibit this problem: e.g. any
1/8" stereo to L/R mono RCA or 1/4" connectors) If
you disconnect it, running just the signal
conductors, you isolate the systems' grounds. This
seems to fix the problem.
To Apple's credit, after looking for some information
on the audio specifications of the MacBook Pro, I
found in the developer's section the Audio Developer
Note for the MBP in which the following was stated:
"For best results, equipment plugged into the
line/headphone output jack should not connect the
audio ground to other grounds, such as the chassis or
"green-wire" ground."
I hope this helps others.
Apple: Take notice. Please print this info in the
user's manual to avoid some disgrunted users!
Great Job! I fixed my whine on my new 17" MBP but no one cares, oh well I am happy!
William

Using Audio-line out in MacPro

Hi,
I have recently switched to Mac from Windows. I have a good Altec Lansing speakers which I would like to continue using for sometime.
Normally the speakers contains black and green connectors and you connect the green to the audio out.
But connecting the green connector to the audio out in MacPro doesn't bring any sound.
What is this audio out? Can I use my Windows speakers with it?
The speakers works fine when I connect to the Headphone Jack in the front.
Any info is useful.
Cheers.
MacPro Mac OS X (10.4.8)

Getting the audio out to work the first time can at times be a little fiddly although once you have it working it's no problem after that. What I needed to do is, in the Sound System Preference, is to change the Output between the built-in speakers and the line out a few time while changing the system volume (via the keyboard) up and down inbetween.
I've never figured out why it's sometime like this but once you've fixed it its not a problem afterwards.

Audio line out mysteriously doesn't work due to software

My topic doesn't seem to fit in with any of the forum topics, so I chose this one as the closest fit.
Now, my line out audio stopped working. Now before you think I'm crazy and I submitted a question for what is obviously bad hardware, listen to this.
This happened before about a year and a half ago. I thought it was a faulty line out jack, and since computer was still under warranty, I took it in. They told me there was nothing wrong. I took the computer home and it worked just fine. hmmmmm
Now it happened again. I checked my speakers first by connecting to another computer. They worked fine. I rebooted the computer in Windows and the line out plays just fine into the external speakers! I reboot back into OSX and it stops working! Any ideas what is going on?
Of course I have the line out selected in the sound preferences. I can select internal speaker and I get audio from the computers speaker. Go back to line out and it's a blank. And yes, the volume is turned up.

Here's my advice...
Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, then reinstall the combo update for Intel-based Macs...
http://www.apple.com/support/downloads/macosx10411comboupdateintel.html
Repair Permissions afterwards, reboot.

Connecting to audio line out freezes QuickTime!

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