Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

My macbook pro has 2 built in speakers and a line-out for audio.

Additionally, I have it connected to my cinema display wich also has 2 speakers.

I want to know how to combine them to use all of them to play my musics so it does't just come from a single output.

share|improve this question
add comment

2 Answers

up vote 1 down vote accepted

Audio MIDI Setup to the rescue!

Open Audio MIDI Setup which is located in Applications > Utilities.

Click the + icon in the bottom-left hand side and choose Create Multi-Output Device.

Screenshot of the Left-Hand side of Disk Utility

When the multi-output device is selected, click the Built-In Output, and the Cinema Display's output audio devices.

After this is done, open System Preferences and click the Sound category. Under the Output tab, choose the Multi-Output device.

Any applications that were open when you started this process may have to be restarted in order to pick up the change in default sound devices. Some do, some don't.

I do believe that should do it.

share|improve this answer
add comment

I'm not sure but you can try JackAudio. It's powerful multi-sources input/output mixer.

share|improve this answer
    
You don't need any external software to accomplish this. –  Jason Salaz Feb 10 '12 at 23:05
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.