Install the free BlackHole audio driver. In macOS’s “Audio MIDI Setup,” create a Multi-Output Device combining BlackHole and your speakers; set it as your system output. In OBS, add an “Audio Input Capture” source and select BlackHole to capture desktop audio.
The recording light was on, a tiny red dot promising that my screen’s every move was being captured. I narrated the steps for the software tutorial I was creating, clicking through menus and demonstrating features with what I hoped was clarity and confidence. After twenty minutes, I hit stop, leaned back, and played the file.
My voice was perfect. The mouse clicks were crisp. But the sound from the application itself, the crucial audio feedback my viewers needed to hear, was gone.
There was only a frustrating, empty silence.
It’s a moment familiar to many creators. That sinking feeling when you realize a core part of your recording is missing. For MacBook users, the challenge of how to record OBS MacBook speakers can feel like an unexpected roadblock.
You expect it to just work, but it doesn’t. This isn’t about a bug or a broken setting. It’s about how macOS is designed.
We are going to walk through exactly why this happens and provide a clear, reliable path to capture that elusive system audio, turning your silent recordings into complete, engaging content.
The Wall of Silence: Why Your Mac Resists
Before diving into the solution, it helps to understand the problem. The inability of OBS to directly capture your MacBook’s speaker audio isn’t an oversight by the OBS developers. It’s a deliberate security and privacy feature built into the core of macOS.
Apple designed its operating system to prevent applications from easily “listening in” on what other applications are doing or what sounds the system is producing. This prevents malicious software from snooping on your audio without your permission.
While this is great for security, it creates a hurdle for legitimate uses like screen recording and streaming. Your Mac’s audio output is sent directly to your speakers or headphones. There isn’t a built-in “tap” that another application like OBS can use to intercept that sound.
Think of it like a sealed pipe running from your apps to your speakers. OBS is standing next to the pipe, but it has no way to access the water flowing inside. To solve this, we don’t break the pipe; we simply install a new, accessible junction.
Building a Bridge: Introducing a Virtual Audio Device
The solution is to create a virtual audio bridge. This is a piece of software that acts like a middleman. It creates a new, software-based audio device on your Mac that you can select as both an output and an input.
Instead of sending audio directly to your speakers, you will send it to this virtual device. OBS can then listen to this virtual device, capturing everything that passes through it. It’s the digital equivalent of plugging an audio cable from an “out” port into an “in” port.
For this task, the most trusted and widely used tool is a free, open-source project called BlackHole. Developed by Existential Audio, it’s a simple yet powerful audio driver that creates these virtual channels. It’s a clean, no-frills solution that has become the standard for creators on macOS.
It gives you the control that Apple’s default settings do not, allowing you to route audio anywhere you need it to go. By installing this one tool, you open up a world of audio possibilities for recording and streaming.
Step 1: Installing Your Audio Toolkit
First, you need to get BlackHole onto your system. The process is straightforward.
Head directly to the official developer’s website to download the latest installer. This ensures you are getting a safe and authentic version of the software. You will find options for different channel counts (2ch, 16ch, 64ch).
For most users, the 2-channel version is all you need to capture standard stereo system sound.
Once you download the .pkg file, double-click it to begin the installation. Your Mac’s security might prompt you for your password or Touch ID to authorize the installation, as it is installing a new audio driver. Follow the on-screen prompts.
The process is quick and should only take a minute. When it’s finished, there’s no application to open. BlackHole now exists as a new audio device on your system, ready to be configured.
Step 2: Configuring Your Mac’s Audio Output
This next step is the most crucial part of the entire process, and it’s where many people get stuck. We need to tell your Mac to send audio to both BlackHole (for OBS to hear) and your speakers (for you to hear). If you skip this, you’ll be recording in silence.
We will use a built-in Mac utility called Audio MIDI Setup.
- Open your Applications folder, then go into the Utilities folder and find Audio MIDI Setup.
- Once it’s open, look at the bottom-left corner of the window and click the small “+” icon. Select “Create Multi-Output Device.”
- A new device will appear in the list. Select it. On the right side, you will see a list of available audio devices. You must check the boxes for two things: your primary speakers or headphones (often listed as MacBook Pro Speakers or External Headphones) and BlackHole 2ch.
- It’s very important to set the Master Device. In the “Drift Correction” column, check the box for BlackHole. Your main speakers or headphones should be designated as the Master Device in the dropdown menu at the top of this section. This ensures your audio stays perfectly in sync.
You have now created a new, combined audio output that sends sound to two places at once. To activate it, go to your Mac’s System Settings > Sound, and under “Output,” select the Multi-Output Device you just created. Now, any sound your Mac makes will go to your speakers and to BlackHole simultaneously.
Step 3: Setting Up OBS to Listen
With all the behind-the-scenes work done, the final step is telling OBS where to find the audio. This part is simple.
Open OBS and look at the “Sources” panel, typically located at the bottom of the window. Click the “+” button to add a new source and select “Audio Input Capture.” A window will pop up asking you to name the new source. You can name it something clear like “Desktop Audio” or “System Sound.”
In the properties window that follows, click the “Device” dropdown menu. You should see “BlackHole 2ch” in the list. Select it.
Click “OK.”
You should now see a new meter in your OBS “Audio Mixer” panel corresponding to the source you just added. Play some music or a video on your Mac. If everything is configured correctly, you will see the green and yellow bars on that meter start to move, showing that OBS is successfully receiving your system audio.
You have now built the bridge, and a clean, unbroken stream of audio is flowing directly into your recording software.
FAQ
Why can’t OBS record my Mac’s audio directly?
OBS cannot record your Mac’s speaker audio out of the box due to macOS security policies. Apple designs its operating system to isolate applications, preventing one from easily capturing the audio output of another. This “sandboxing” approach enhances privacy and protects against malicious software that could record sensitive audio without your consent.
To get around this, you must use a third-party virtual audio driver, like BlackHole, to create a new pathway for the audio that OBS is permitted to access.
Is BlackHole safe to install on my MacBook?
Yes, BlackHole is widely considered safe and is trusted by countless streamers, podcasters, and content creators in the Mac community. It is an open-source project, which means its code is publicly available for anyone to inspect for security flaws. To ensure you are installing a safe version, always download it directly from the official developer’s website, Existential Audio.
This avoids any risk of downloading a modified or compromised file from an unofficial source. It’s a standard audio driver, not an intrusive application.
I’ve set it up, but I can’t hear anything. What’s wrong?
This common issue almost always points to the Multi-Output Device configuration. First, go back to System Settings > Sound and make sure your output is set to the “Multi-Output Device,” not your regular speakers or BlackHole alone. Next, open the Audio MIDI Setup utility again.
Check that within your Multi-Output Device, the checkboxes for both your speakers/headphones and BlackHole are selected. If you can’t hear anything, it’s likely the box for your primary output device was accidentally unchecked.
Can I record my microphone and system audio at the same time?
Absolutely. This is one of the main reasons for this setup. Your system audio will be captured through the “Audio Input Capture” source you configured with BlackHole.
Your microphone is a separate device. To add it, simply go to your Audio Mixer in OBS, find the Mic/Aux channel, click the three-dot menu, go to Properties, and select your microphone from the device list. Now you will have two separate audio tracks: one for your voice and one for your Mac’s sound.
Are there alternatives to BlackHole?
Yes, while BlackHole is the most popular free option, there are other tools available. The most well-known paid alternative is Loopback by Rogue Amoeba. Loopback offers a more user-friendly graphical interface that allows you to drag and drop virtual wires between applications and devices, offering immense flexibility.
It is a premium product with a price to match, but for professionals who need complex audio routing with a simpler setup process, it can be a worthwhile investment. For most users, however, BlackHole provides all the necessary functionality.
Conclusion
The silence that once plagued your recordings is now filled with sound. That initial wall of frustration was not a limitation of your creativity, but a technical hurdle with a clear, accessible solution. By understanding that macOS prioritizes security, you can appreciate the need for a dedicated audio bridge.
Using a tool like BlackHole, you create that bridge by setting up a Multi-Output Device that feeds both your ears and your recording software. The final step of telling OBS to listen completes the connection, giving you full control over your audio landscape.
This process transforms what felt like a complex technical problem into a manageable workflow. The power to capture high-quality, complete recordings is now firmly in your hands. You no longer have to settle for silent tutorials or gameplay videos that lack impact.
The sound, the music, and the effects are all part of the story you are trying to tell.
Now that the technical barrier is gone, what will you create with your newfound audio freedom?