Your Sound Isn’t Working
Whether you’re using the built-in MacBook Air speaker or external speakers connected to MacBook Air’s audio output jack, if you’re getting no sound, you’re getting no joy from applications such as iTunes, QuickTime, and GarageBand. Here are a few things to try:
Check the sound volume. You’d be surprised how often sound problems are really just a volume issue because someone has turned the MacBook Air volume down to its lowest level. Check the volume icon in the menu bar. If you don’t see any “waves” coming out of the speaker, click the volume icon. Then click and drag the slider to turn up the volume. If you don’t see the volume icon, open System Preferences, click Sound, and then click the Output tab, shown in Figure 13.4. Deselect the Mute check box, and then use the Output volume slider to set the system volume.
Change the output device. If you have multiple sound output devices — say external speakers or Bluetooth headphones — it’s possible that MacBook Air is trying to output the sound to a device that’s not currently on or connected. Open System Preferences, click Sound, and then click the Output tab. In the Select a device for sound output list (see Figure 13.4), click either Internal Speakers or another device that you know is connected.
13.4 In ...
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