Sound from both Audio line out and internal speaker

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Level 1

10 points

Sound from both Audio line out and internal speaker

Sound was working fine on my Mac Pro (line out) until yesterday. Now sound will come from either the line-out or the internal speaker depending on the application generating the sound.

For example, I can play a mp3 file with Real Player and I hear it over the internal speaker. I play the same mp3 file with Quicktime and I hear it over the line-out speakers.

I first noticed the problem when converting a wav file to mp3 using an application called Switch. When I played the converted file, the sound played in the internal speaker.

I have shitdown the Mac and unplugged the power cord and then rebooted with no change in behavior. It would appear to be a system setting, but the Sound Preferences still report that line-out is selected.

Any thoughts?

Royce

Mac Pro 2.66 GZ Mac OS X (10.4.8) iBook 1.42 Gz, MacMini G4 1.42 Gz

Posted on Nov 22, 2006 5:54 PM

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Answer 1

Network 23

Level 6

12,351 points

Nov 23, 2006 10:26 AM in response to rcmcminn

You can also try playing with the sound output configuration in your Audio MIDI Setup utility.

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Answer 2

Nov 23, 2006 1:25 PM in response to Network 23

Let me tag on here and ask... I just setup my new Mac Pro 3ghz machine and I notice that I get ALL audio output through the line out when its booted... the startup chime does NOT play through the line out... it used to play through the internal speaker , but thats muted in control panel to get audio to play out the line out in the back. Is this normal? Shouldn't I hear the startup chime through the line out ? This works like its supposed to on my G5.

thanks

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Answer 3

Nov 23, 2006 2:23 PM in response to David Barnes5

I hear the startup chime through the line out ? This
works like its supposed to on my G5.

I think It's normal... I can notice the same bahaviour with my Mac Pro too.... Everything get through the line out (external speakers) except for the startup sound that comes from the internal speaker.... Well, I don't care. Indeed I'm sure the internal speaker is still working fine. 🙂

Max

MacPro 3 Ghz Mac OS X (10.4.8) Raptor 150 - Apple Cinema Display 20"

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Answer 4

Nov 23, 2006 4:24 PM in response to Maxwell Sheffield

ok cool... thats what I was wondering... does not bother me at all I just was not sure if that was normal behavior.

thanks

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Answer 5

rcmcminn Author

Level 1

10 points

Nov 23, 2006 4:32 PM in response to Maxwell Sheffield

From my experience with the Mac Pro (limited as it is), the startup sound is emitted from the internal speaker.

Back to the original question:
The Audio Midi Utility was set to line out as well. I played with toggling between the internal setting and the line out with no luck. It still appears as though a system setting, not available through the normal user interface has been incorrectly set.

rcmcminn

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Answer 6

Feb 7, 2007 5:59 PM in response to rcmcminn

Getting back on topic...

I have just noticed this problem as well. The way I noticed it was when using the keyboard volume controls. They are only adjusting the internal speaker, not the line out volume.

I have line out selected in System Preferences -> Sound. Internal speaker is muted.

Anyone found a solution to this problem yet?

Sam

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Answer 7

PhantomD

Level 1

0 points

Feb 8, 2007 11:28 PM in response to Sam Wynens

I am having a similar issue with some audio playing through the internal speaker and some through the line out to my desk speakers...

movies played in safari (flash based usually) will play through the internal speaker, itunes and quicktime play through the desk speakers.

Zach

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Answer 8

Mar 6, 2007 5:07 AM in response to Sam Wynens

Just thought I'd post that I too am having this issue.

I have external speakers plugged into the line-out jack but sound is still emitted from the internal speakers at the same time.

I have set the Mac to use the Line out in sys preferences but it makes no difference!!

I hope a solution is found soon as this is really annoying.

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Answer 9

Mar 6, 2007 5:24 AM in response to Justin Munro1

Try to set it up several times until the sound will come out of the external speakers... ;-)

Max

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Answer 10

jsalbre

Level 1

4 points

Mar 8, 2007 6:17 AM in response to Sam Wynens

I'll throw my hat into the "volume keys will only adjust the internal speaker" ring too. It's been doing this for 3 days now, but only on one user account. I've tried rebooting and even deleting all audio related preference files but still no luck. This happened once before a few weeks ago but went away on it's own next time I logged in.

I'm a little glad to hear I'm not the only one with this problem.

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Answer 11

Jul 6, 2007 4:03 AM in response to rcmcminn

I can't help with an answer, but I have the same problem. Its pure chance what will come out where. Different for different users . . . truly bizarre. Would love any help on this.

Mac PRO 8 core, 300mb striped RAID boot, 1tb data, 8mb ram Mac OS X (10.4.9) Mac Book Pro

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Answer 12

Aug 29, 2007 12:22 PM in response to rcmcminn

I have been having a similar problem and I finally found a fix. I have tried everything and the only thing that worked was an erase and system install. I spoke with apple and then sent them product feedback, and lo and behold, they fixed it. There is an article on their site:

http://docs.info.apple.com/article.html?artnum=300832

I did what is said and it fixed the problem instantly.

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