Soundflower presents itself
as one of two audio devices (2ch / 16ch). The 2-channel device is
sufficient for most situations.
To send the output of one
application to another, select Soundflower as the output device in the
first application and Soundflower as the input device within the second
If an application does not
allow you to specify audio devices, you can make Soundflower the default
input or output device inside the Sound panel in the System Preferences,
or with the Audio MIDI Setup utility application.
The 16-channel device is
provided for more complex routing situations, and can be used with more
than two applications simultaneously if the applications support audio
routing to any channel, as Max/MSP does.
Note that Soundflower’s
audio channels represent a global audio space. If more than one
application is sending its output to the same channel, the audio will be
mixed. If you want an application to send and receive audio through
Soundflower, (for instance using Max/MSP to manipulate and return
another application’s audio) you must send and receive the audio on
different audio channels or a feedback loop will be created.
If you are hearing clicks
or breakups, try increasing the buffer size of both applications (set
within each application).
Since Soundflower offers a
straight forward method of communicating between applications on the
Mac, there are a variety of situations where you can employ it.
Soundflower has been used
extensively in podcasting by combining separate streams of audio into
one source. Instead of recording an interview with Skype and only
hearing one voice, Soundflower lets you publish both voices for a
complete interview experience.
Use an application called
DittyBot and Skype to access your iTunes collection from any cellphone.
audio from iTunes into
Audacity, or route an audio stream from
iTunes to Logic.
When using Soundflower to
send audio to and from applications, you may find that you are not able
to send audio through another device to monitor audio output. In such
situations you can use Soundflowerbed, an application that resides in
the Finder’s Menubar allowing you to tap into Soundflower channels and
route them to an audio device.
Download: Soundflower 1.6.6
Installer (includes SoundflowerBed) -- Use this for OS 10.6 - OS 10.8
Soundflower 1.5.1 requires Mac OS
Soundflower 1.4.3 requires Mac OS
Soundflower 1.3.1 requires Mac OS
10.2.8 or later.
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SM Pro Audio VFX Software for
Intel Mac OS X
How to setup Garage Band,
Sound-flower, IAC, VFX
Apple's Boot Camp
GarageBand Aggregate Device
Audacity VST Enabler
WACVST (Windows-Mac VST)
VSTAU Manager (VST to AU Adapter)
How To Use Soundflower
How to capture audio with
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