User:BillWharrie/Using Soundflower to record streaming audio

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These instructions show the Audacity Preferences as they appear in Audacity 2.0.0 which is available for OS X 10.4 and later.

On Mac OS X, to record the audio you hear through your speakers using Soundflower, you need to set Soundflower as your default output device. In Audacity, you then set Soundflower as your input device.

1) Download and install Soundflower as per the instructions on the Soundflower web site. Note the system requirements, and get the right version for your version of OS X.

2) Choose Apple Menu > System Preferences then the Sound panel, and select the Output pane. This is what it looks like in OS X 10.5.8 - it may look slightly different in 10.4 or 10.6.

MacSoundflowerOutputPrefs.png
Select "Soundflower(2ch)" in the output device list.
Note: you will now no longer have any output to your speakers. This is normal.

3) Go to the application that will be playing the sound you want to record. For example, start Safari and go to a web site that plays sound clips. Start some audio playing.
Note that you will not be able to hear the sound.

4) Start Audacity, then choose Audacity > Preferences then the Devices section.

MacSoundflowerDevicesPrefs.png
Set the Recording device to "Soundflower (2ch)" and Channels to "2 (stereo)"
Click the OK button to accept the changes

5) Click on the Transport menu and make sure that "Software Playthrough" is checked.

6) Click on the input level meters (above the microphone symbol) to begin monitoring:

MacMetersActive.png
You should now be able to hear the sound playing on your computer.

You are now ready to record anything playing on your computer.

To set things back to "normal" so you can hear audio playing on your computer without running Audacity

1) Click on Apple Menu > System Preferences then the Sound panel, and select the Output pane. Select "Line Out" in the output device list. See step 2 above for an illustration.

2) In Audacity, if you want to record from a different source (such as the Line Input or an external USB device), click on Audacity > Preferences then the Devices section and select the input you want to record from in the Recording section. See step 4 above for an illustration.

For help if you're stuck

Visit the Mac 1.3.x forum, click the "New Topic" button and ask your question.