All of a sudden I have no sound.
All of a sudden I have no sound.
iMac, OS X 10.11
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Generally this happens after both updates and upgrades, which often reset the Audio Midi Setup utility in Applications -> Utilities to too high a frequency for your stereo audio. You do not want a frequency higher than 48 kHz.
Some other audio issues can happen:
- An existing audio output is selected that has not been detached and you want either built-in speakers to work, or another audio to work. You can only have audio go through one set of devices at a time:
- Built in speakers
- mini-jack speakers
- bluetooth speakers. - Disable bluetooth and use a wired mouse and keyboard to do so, if unsure which one is causing it.
- Airplay audio. Check Airplay icon is not showing your AppleTV or other WiFi based speaker system as a sound out source.