Take the 2-minute tour ×
Sound Design Stack Exchange is a question and answer site for sound engineers, producers, editors, and enthusiasts. It's 100% free, no registration required.

In Mac OS ... Can I create 2 mono audio streams (is buses the right word?) from a live stereo signal input?

I do not need to record these streams. I just want to convert 1 stereo input into 2 mono inputs, that will then be broadcast separately.

In essence, I am receiving a 2 channel signal that I would like to split, live, and reuse.

share|improve this question

migrated from avp.stackexchange.com Jan 24 at 12:01

This question came from our site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation.

I think any DAW would work. You add 2 tracks, set one to the left channel input and one to the right channel input. The input could be a line-in or the computer's stereo mix. The real question is: what do you mean "split live and reuse"? Stereo is already 2 channel and if you aren't storing the data, what is the purpose? –  horatio May 29 '12 at 18:28
I am running 2 instances of ustream on a macbook pro, each broadcasting to a separate ustream channel. –  Webdevbytes May 29 '12 at 19:11
On a macbook pro, I want to split the stereo line-in signal into 2 mono channels and then feed each mono channel to a different streaming application. In this case ustream. The reason is that the the event I will be steaming with be translated simultaneously. –  Webdevbytes May 29 '12 at 19:19
add comment

2 Answers 2

I think something like Soundflower would allow you to do this:


share|improve this answer
add comment

You can split a stereo Channel into two mono channels in Audacity


This creates two Mono Tracks, that can be exported

share|improve this answer
add comment

Your Answer


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