
Adjusting sound settings on macOS Sierra is a straightforward process that allows users to customize audio output to their preferences. Whether you need to increase volume, balance speakers, or troubleshoot audio issues, Sierra provides a user-friendly interface through System Preferences. By accessing the Sound panel, users can modify input and output devices, adjust alert sounds, and fine-tune output volume levels. Additionally, Sierra offers advanced options for managing audio devices and ensuring optimal sound quality. This guide will walk you through the steps to effectively adjust sound settings on your Sierra-powered Mac, ensuring a seamless audio experience for both work and entertainment.
| Characteristics | Values |
|---|---|
| Operating System | macOS Sierra (10.12) |
| Sound Adjustment Method | System Preferences > Sound |
| Output Volume Control | Slider under the "Output" tab |
| Input Volume Control | Slider under the "Input" tab (for microphones) |
| Sound Output Devices | Select from dropdown (e.g., Internal Speakers, Headphones, HDMI) |
| Sound Input Devices | Select from dropdown (e.g., Internal Microphone, External Microphone) |
| Alert Sounds | Adjust in System Preferences > Sound > Sound Effects |
| Keyboard Volume Control | Use F10 (decrease), F11 (mute), F12 (increase) keys |
| Accessibility Options | Enable "Play stereo audio as mono" in Accessibility > Audio |
| Output Balance | Adjust left/right balance under the "Output" tab |
| Input Sound Level Meter | Visual meter under the "Input" tab to monitor microphone levels |
| Sound Enhancements | Enable "Use ambient noise reduction" for microphones (if available) |
| Third-Party Apps | Use apps like Boom 3D or Background Music for advanced sound adjustments |
| Reset Sound Settings | Remove preferences from ~/Library/Preferences/com.apple.sound.plist |
| Firmware Updates | Ensure audio device firmware is up to date via System Preferences > Software Update |
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What You'll Learn

Adjust Volume in Sierra
Adjusting the volume in macOS Sierra is a straightforward process, but it involves a few different methods depending on whether you’re using the system preferences, keyboard shortcuts, or the menu bar. To begin, the most direct way to adjust the volume is by using the keyboard shortcuts. On most Mac keyboards, you’ll find dedicated volume buttons: F10 to mute, F11 to decrease volume, and F12 to increase it. Simply press these keys to quickly adjust the sound level without navigating through menus. If your Mac doesn’t have these keys, you can use the Control + Shift + Command + Up Arrow to increase volume and Control + Shift + Command + Down Arrow to decrease it.
For a more visual approach, you can use the volume slider in the menu bar. Click the speaker icon located at the top-right corner of your screen. A slider will appear, allowing you to adjust the volume by clicking and dragging it up or down. If the speaker icon isn’t visible, you can add it by going to System Preferences > Sound > Sound Effects and checking the box next to "Show volume in menu bar." This method is particularly useful if you prefer a graphical interface over keyboard shortcuts.
Another way to adjust the volume is through System Preferences. Open System Preferences from the Apple menu, then click on Sound. In the Output tab, you’ll see a volume slider that you can adjust. This method also allows you to select your output device (e.g., internal speakers or headphones) and configure alert sounds. Additionally, the Sound Effects tab lets you adjust the volume for specific system sounds, such as alerts and feedback, giving you more granular control over your audio experience.
If you’re using external speakers or headphones, ensure they are properly connected and selected as the output device. In System Preferences > Sound > Output, choose the correct device from the list. Sometimes, volume issues can arise if the wrong output device is selected. Adjusting the volume in Sierra is not just about the system settings—it’s also about ensuring your hardware is correctly configured for optimal sound output.
Finally, for users who prefer third-party applications, there are several apps available on the Mac App Store that offer advanced volume control features. These apps often include equalizer settings, per-app volume adjustments, and more. While not necessary for basic volume adjustments, they can enhance your audio experience if you require additional customization. By combining these methods, you can easily adjust the volume in macOS Sierra to suit your needs, whether you’re working, watching videos, or listening to music.
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Change Sound Output Settings
To change sound output settings on macOS Sierra, you’ll need to access the Sound preferences in System Preferences. Start by clicking the Apple menu in the top-left corner of your screen and selecting System Preferences. From the window that appears, click on the Sound icon. This will open the Sound preferences pane, where you can adjust various audio settings, including output devices. In the Sound preferences, navigate to the Output tab. Here, you’ll see a list of available audio output devices connected to your Mac, such as internal speakers, headphones, or external speakers. Select the device you want to use for sound output by clicking on its name in the list. If you don’t see your desired device, ensure it’s properly connected to your Mac.
Once you’ve selected your output device, you can further customize the settings. For example, adjust the Output volume slider to control the overall sound level. If you’re using external speakers or headphones with their own volume controls, this slider will affect the maximum volume output to those devices. Additionally, if your selected output device supports multiple audio channels (e.g., stereo or surround sound), you can choose the appropriate format from the Format dropdown menu. This ensures the audio is optimized for your setup.
For advanced users, macOS Sierra also allows you to configure Sound Enhancer options, which can improve audio quality for specific devices. To access these settings, click the Output tab again and look for the Sound Enhancer checkbox. Enabling this feature may provide options like bass boost or equalization, depending on your hardware. Experiment with these settings to find the best audio experience for your needs.
If you’re troubleshooting sound issues or switching between devices frequently, consider using the Sound menu in the menu bar. To enable this, go back to the Sound preferences, click on the Output tab, and check the box for Show volume in menu bar. This adds a volume icon to the top-right corner of your screen, allowing you to quickly switch output devices or adjust volume without opening System Preferences.
Finally, if you’re using multiple output devices and want to set a default, simply select the desired device in the Output tab and close the preferences pane. macOS Sierra will remember your choice until you manually change it. For users with accessibility needs, the Accessibility pane in System Preferences also offers options to adjust sound alerts and visual cues, though these are separate from the primary sound output settings. By following these steps, you can easily change and customize sound output settings on macOS Sierra to suit your preferences and hardware setup.
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Fix Sierra Audio Issues
If you're experiencing audio issues on your Sierra system, there are several steps you can take to troubleshoot and fix the problem. Firstly, check the volume settings by clicking on the volume icon in the menu bar and adjusting the slider. If the issue persists, try restarting your Mac, as this can often resolve temporary glitches. Additionally, ensure that your audio devices, such as speakers or headphones, are properly connected and functioning. Sometimes, simply unplugging and replugging the device can restore audio functionality.
Another common solution is to reset the Core Audio component, which manages sound on your Mac. To do this, open the Terminal application (found in Utilities within the Applications folder) and type `sudo killall coreaudiod` followed by your admin password. This command restarts the Core Audio process, which can fix many audio-related problems. After running the command, check if your audio is working correctly. If not, proceed to the next troubleshooting step.
Outdated or corrupt audio drivers can also cause sound issues. Ensure your macOS Sierra is up to date by going to System Preferences > Software Update. If updates are available, install them and restart your Mac. If the problem continues, consider reinstalling the audio driver. To do this, download the latest driver from the manufacturer’s website, uninstall the existing driver (if applicable), and install the new one. Follow the manufacturer’s instructions carefully during this process.
If your audio is distorted or crackling, the issue might be related to incorrect sound output settings. Open System Preferences > Sound > Output and select the appropriate device (e.g., internal speakers or headphones). Adjust the output volume and test the audio. If multiple output devices are listed, try selecting a different one to see if the issue resolves. Additionally, check for any third-party audio enhancement software that might be interfering with the sound output and temporarily disable it to test.
Lastly, if none of the above solutions work, create a new user account on your Mac to determine if the issue is account-specific. Go to System Preferences > Users & Groups and add a new user. Log in to the new account and test the audio. If the sound works in the new account, the problem is likely related to settings or preferences in your original account. You can then transfer your files and settings to the new account or troubleshoot further to identify the conflicting preference.
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Use Sound Preferences Menu
To adjust the sound on your Sierra system, one of the most straightforward methods is to utilize the Sound Preferences Menu. This menu provides a centralized location for managing various audio settings, ensuring you have full control over your system’s sound output and input. Here’s a step-by-step guide to help you navigate and make adjustments effectively.
First, access the Sound Preferences Menu by clicking on the Apple menu in the top-left corner of your screen and selecting System Preferences. From the System Preferences window, click on the Sound icon. This will open the Sound preferences pane, which is divided into several tabs: Sound Effects, Output, Input, and Alert. Each tab serves a specific purpose, allowing you to customize different aspects of your audio experience.
In the Output tab, you can choose the device through which sound will be played. If you have multiple audio devices connected, such as external speakers or headphones, select the desired device from the list. You can also adjust the volume by moving the slider or use the Balance slider to control the left and right audio channels. Additionally, check the Mute box if you wish to temporarily disable sound output.
The Input tab is where you manage audio input devices, such as microphones. Similar to the Output tab, you can select the active input device from the list. Adjust the input volume by moving the Input Volume slider, which is particularly useful for ensuring your microphone captures sound at the appropriate level. If your device supports it, you can also enable Ambient Noise Reduction to minimize background noise during recordings or voice chats.
For customizing system sounds and alerts, navigate to the Sound Effects tab. Here, you can choose the alert sound for various system events, such as receiving a message or an error notification. Use the dropdown menu to select from a list of predefined sounds or add your own by clicking Add and locating the desired audio file. You can also set the alert volume independently from the main system volume by adjusting the Alert Volume slider.
Lastly, the Alert tab allows you to fine-tune how your system responds to specific events. Enable or disable alerts for different actions, such as when your Mac is plugged into power or when the battery is low. This tab ensures you have granular control over which sounds play and when, helping you create a more personalized and less intrusive audio environment. By mastering the Sound Preferences Menu, you can optimize your Sierra system’s audio settings to suit your needs perfectly.
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Troubleshoot Sierra Sound Problems
If you're experiencing sound problems on your Sierra system, there are several steps you can take to troubleshoot and resolve the issue. First, ensure that your audio device is properly connected to your computer. Check the cables and connections, and make sure the device is turned on and functioning correctly. If you're using external speakers or headphones, try connecting them to a different device to verify they're working properly. This initial check can help you determine whether the problem lies with your Sierra system or the audio device itself.
Next, navigate to the Sound settings in your Sierra system preferences. You can access this by clicking on the Apple menu, selecting System Preferences, and then choosing Sound. Here, you'll find several tabs, including Output, Input, and Sound Effects. Verify that the correct output device is selected under the Output tab. If you're using external speakers, make sure they're chosen as the primary output device. You can also adjust the volume and balance settings to ensure they're set to an audible level. Additionally, check the Input tab to confirm that the correct input device is selected, especially if you're experiencing issues with recording or voice chat.
In some cases, sound problems on Sierra can be resolved by resetting the core audio system. To do this, open the Terminal application, which can be found in the Utilities folder within Applications. Type `sudo killall coreaudiod` and press Enter. You'll be prompted to enter your administrator password. After resetting the core audio system, check if the sound is working correctly. If not, proceed to the next troubleshooting step. Keep in mind that resetting the core audio system can temporarily disrupt audio playback, so it's essential to save any open work before executing this command.
Outdated or corrupt audio drivers can also cause sound problems on Sierra. To update your audio drivers, visit the manufacturer's website for your specific audio device or motherboard. Download and install the latest drivers compatible with your Sierra system. If you're unsure about the process, consult the manufacturer's support documentation or contact their customer support for assistance. After updating the drivers, restart your computer and check if the sound issue has been resolved. In some instances, you may need to uninstall and reinstall the audio drivers to ensure a clean installation.
If the sound problem persists, consider checking for any available macOS updates. Apple regularly releases software updates that include bug fixes and improvements, which may address the sound issue you're experiencing. To check for updates, click on the Apple menu, select System Preferences, and then choose Software Update. If an update is available, follow the on-screen instructions to download and install it. After updating your system, restart your computer and verify if the sound is functioning correctly. In some cases, a simple system restart can also help resolve temporary glitches affecting audio playback.
Finally, if none of the above steps resolve the sound problem, it's possible that there may be a hardware issue with your audio device or internal components. In this case, consult Apple's support resources or contact their customer support for further assistance. You can also try resetting the SMC (System Management Controller) and PRAM (Parameter Random Access Memory) on your Mac, as these resets can sometimes resolve persistent hardware-related issues. Remember to back up your important data before performing any hardware-related troubleshooting, and if the problem persists, consider seeking professional assistance from an authorized Apple service provider.
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Frequently asked questions
To adjust the volume on macOS Sierra, click the volume icon in the menu bar at the top-right corner of the screen, then drag the slider left or right. Alternatively, use the F11 (decrease) and F12 (increase) keys on your keyboard.
Open System Preferences from the Apple menu, then click on Sound. Here, you can adjust input and output settings, set the sound output device, and configure alert sounds.
Go to System Preferences > Sound > Output. Select your preferred output device (e.g., internal speakers, headphones, or external speakers) from the list.
macOS Sierra does not natively support adjusting individual app volumes. However, you can use third-party apps like "Background Music" or "SoundSource" to control volume per application.
Go to System Preferences > Sound > Sound Effects. Check or uncheck the box next to "Play feedback when volume is changed" to enable or disable sound effects for volume adjustments.











































