What If the Live Video on a Third-party Live Platform Is Muted?

Checking the OBS Audio Capture Device

1. Open OBS on the local PC.
2. In the lower part of the page, select Audio Mixer.
   Figure 1 OBS
   

3. Click in the Audio Output Capture area and select Properties from the drop-down list box. The dialog box of property settings is displayed, as shown in Figure 2.
   Check whether the device is the same as the Windows audio output device. If not, OBS cannot capture and send sound to the third-party live platform. You need to change the values to be the same.

   Figure 2 Audio property settings
   

Checking the Windows Audio Output Device

In Windows system settings, find the sound settings and check the output device, as shown in Figure 3.

Figure 3 Audio output device