First, turn on the computer, find the icon of the speaker at the lower right of the computer, click the icon directly, then select the setting of turning on the sound, and then slide down to find the option of the microphone. At this time, you can adjust the sound of Mike Feng by sliding up and down, so that Tintin's live window can enjoy the sound permission first.

If the live broadcast is nailed by a mobile phone, there may be no sound, so you have no right to open the recording. Find the application management in the settings, click the nail, and open the permissions of "recording" and "microphone" in the permissions. Turn up the volume of the mobile phone and the media to see if there is any sound. If not, you can close the program in the background and try again.