A possible fix for an apparently-broken left speaker
May 26, '09 07:30:00AM • Contributed by: Anonymous
May 26, '09 07:30:00AM • Contributed by: Anonymous
If you notice that the left speaker on your MacBook Pro or MacBook has gone silent, make sure to check the following settings before making an appointment with the Apple Store for a hardware inspection:
- System Preferences » Sound » Input: If 'Use Ambient Noise Reduction' is checked, simply uncheck it to unmute the left speaker.
- Applications » Utilities » Audio MIDI Setup: Go to Audio Devices, and select 'Built-in Output' from the Properties For drop-down dialog. Now look under Audio Output and make sure Channel 1 isn't lowered or muted. Note that this program doesn't report the 'Ambient Noise Reduction' setting as Channel 1 being muted. (Some users have reported that iChat AV may lower the left speaker's volume drastically for voice conferences, so you may need to repeat this step after each use of iChat AV.)
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