# 【OBS】Tutorial on Capturing Desktop Audio without Affecting Speaker Output (for MAC Computers)

<div data-elink-language-switch="1" id="bkmrk-%E4%B8%AD%E6%96%87" style="border:1px solid #d6d9de;border-radius:6px;padding:10px 12px;margin:0 0 18px 0;background:#f8fafc;font-size:14px;">[中文](/books/091d5/page/obsmac)</div><span style="font-size:17px;">**Step 1: Download the software (skip this step if you already have the software)**</span>

<span style="font-size:15px;">Download and install OBS and blackhole software (it is recommended to install the latest version of OBS. Version 27.0.1 has been tested and works normally)</span>

<span style="font-size:15px;">\*Related download addresses:</span>

<span style="font-size:15px;">1. OBS download</span>

<span style="font-size:15px;">Official website:[https://obsproject.com/](https://obsproject.com/%EF%BC%9B)</span>

<span style="font-size:15px;">Quick download address:[https://xiaoetong-1252524126.file.myqcloud.com/plugins/obs-mac-27.0.1.dmg](https://xiaoetong-1252524126.file.myqcloud.com/plugins/obs-mac-27.0.1.dmg%E3%80%82)</span>

<span style="font-size:15px;">2. blackhole download</span>

<span style="font-size:15px;"><span style="font-size:15px;">Official website:[https://existential.audio/blackhole/](https://existential.audio/blackhole/%EF%BC%9B)</span></span>

<span style="font-size:15px;"><span style="font-size:15px;"></span>Quick download address:[https://xiaoetong-1252524126.cdn.xiaoeknow.com/XEDownloader/BlackHole2ch.v0.4.0.pkg](https://xiaoetong-1252524126.cdn.xiaoeknow.com/XEDownloader/BlackHole2ch.v0.4.0.pkg)</span>

<span style="font-size:17px;">**Step 2: Configure MIDI**</span>

<span style="font-size:15px;">1. Open the audio MIDI settings on your Mac system</span>

<span style="font-size:15px;">![01.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/47834700_1625574210.png ".png")</span>

<span style="font-size:15px;">2. Create a new multi-output device</span>

<span style="font-size:15px;">![02.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/95112700_1625574215.png ".png")</span>

<span style="font-size:15px;">3. Then select and check both the MacBook Pro speakers and BlackHole 16ch in the multi-output device</span>

<span style="font-size:15px;">![03.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/66969300_1625574220.png ".png")</span>

<span style="font-size:17px;">**Step 3: Set the system audio output**</span>

<span style="font-size:15px;">Open System Preferences -&gt; Sound -&gt; Output, and select the multi-output device</span>

![04.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/66954000_1625574228.png ".png")

<span style="font-size:17px;">**Step 4: Configure OBS**</span>

<span style="font-size:15px;">1. Open OBS -&gt; Settings -&gt; Audio</span><span style="font-size:15px;">Modify the Desktop Audio configuration. Select the option: BlackHole 16ch, and then click OK</span>

![05.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/71829000_1625574622.png ".png")

<span style="font-size:15px;">2. Next, open any music player on your desktop and check if there is a volume fluctuation in the desktop audio. A normal fluctuation indicates successful configuration.</span>

![06.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/6404900_1625574630.png ".png")

<span style="font-size:17px;">**Step 5: Capture an application**</span>

<span style="font-size:15px;">1. If you need to use OBS to capture individual applications for live streaming, such as Tencent Meeting, you need to add a new window capture in OBS and then select the Tencent Meeting software window.</span>

<span style="font-size:15px;">First, click the + sign and select Window Capture</span>

<span style="font-size:15px;">![07.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/13363100_1625574640.png ".png")</span>

<span style="font-size:15px;">2. Then click OK</span>

![08.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/50733900_1625574644.png ".png")

<span style="font-size:15px;">3. Then select Tencent Meeting in the opened window, and then click OK.</span>

![09.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/85926100_1625574654.png ".png")

![10.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/13468700_1625574660.png ".png")