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This wikiHow teaches you how to diagnose and fix faulty computer speakers on both Windows and Mac computers. While speakers themselves require a large degree of technical knowledge to fix, most speaker troubles stem from easily fixable hardware or software issues.

Part 1
Part 1 of 5:

Using General Checks

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  1. To know how to troubleshoot speaker problems, it's a good idea to know the basics of how your speaker system works:
    • Sound signals generated inside your computer are sent to the speaker port (usually green) on your computer.
    • You plug your speakers into that port, and the sound continues down the wire into the little amplifier built into the speakers.
    • The output of the amplifier is wired to the speakers.
    • Power from either the battery (laptop) or the wall outlet (desktop) enables the amplifier to boost the tiny signal coming from your computer into something strong enough to wiggle the magnets in the speakers, vibrating the speaker cone, which in turn vibrates the air, creating sound.
  2. While any failure along the chain of events listed in the last step can cause your speakers to stop working, there are two main reasons why you might not be getting sound:
    • Software - Software problems can pop up due to anything from low power on a laptop to out-of-date drivers or sound preferences.
    • Hardware - Hardware problems stem from physically broken or loose speaker parts. If your speakers' hardware is broken, it's extremely unlikely that you'll be able to fix them on your own (and virtually impossible if you have a laptop).
      • The one exception to this is if your speakers are improperly plugged into your computer.
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  3. Many Windows laptops will go into low-power mode if their batteries drop below a certain threshold, which can result in some computer features (e.g., sound) functioning incorrectly. You can avoid this by plugging your laptop into a wall charger.
    • Naturally, you'll skip this step on a desktop computer.
  4. If your speakers have a separate volume control from your computer, make sure that the volume is dialed into a level at which you can actually hear your speakers. It sounds obvious, but ruling out an accidental mute is quick and more commonly an issue than one might think.
    • If you have a laptop instead of a desktop, make sure that the volume is all the way up.
  5. If your computer's headphone jack has something plugged into it, the speakers won't work.
    • On some desktop computers, you may find the headphone jack on the back of the tower.
    • Many speaker systems have their own headphone jacks, so check for connections there as well.
  6. If you've determined that your speakers aren't working even though headphones aren't plugged in, listening to your computer's audio with headphones will help determine whether or not your computer is the problem:
    • If your computer's sound works through headphones but not through the speakers, then the speakers or their connections are the problem.
    • If your computer's sound still doesn't work through headphones, you're encountering a software problem.
  7. Your speakers might not be connected properly to the computer (or to each other). You can check the speakers' connections to each other by looking at the cables connecting them in the back of each speaker, and you can check your speakers' connection to your computer by looking at the connection in the back of your computer.
    • Your speakers should plug into your computer's "Audio Out" port, which is usually a green headphone jack on Windows desktop computers.
    • If your speakers connect via HDMI, optical, Thunderbolt, or so on, make sure that the connections are especially tight.
  8. This will solve most temporary software problems. The best way to restart your computer when attempting to fix a software issue is by shutting it down, waiting for a few minutes, and then turning it back on:
  9. The following parts focus on changing your Windows or Mac computer's Sound settings and drivers to ensure that your computer is both using the connected speakers and making the most of the currently available software for those speakers.
    • If none of the following software tweaks work for your speakers, you'll need to take your speakers/computer into a tech repair department and ask for assistance.
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Part 2
Part 2 of 5:

Changing Sound Settings on Windows

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  1. 2
    Open the "Sound" section of the Control Panel. Type in sound , then click the speaker-shaped Sound option at the top of the menu.
    • The Sound option will have "Control Panel" written below it.
  2. 3
    Click the Playback tab. It's at the top of the Sound window. You should see a list of your computer's audio options appear.
    • If the current tab doesn't change when you do this, you're already on the Playback tab.
  3. 4
    Select your speakers' name. Click the name of your speaker set (usually a combination of the speakers' manufacturer and model number) to do so.
  4. 5
    Click Set Default . It's in the lower-right side of the window. Doing so will set your selected speakers as your computer's default audio output, meaning that any non-headphone sound should now come from the speakers.
  5. 6
    Click Apply , then click OK . Both options are at the bottom of the window. Doing so will apply your settings and close the window.
  6. Make sure that the volume is sufficient on your speakers, then play a video or a song. If your speakers work, you can stop here; if not, try updating your speakers' drivers .
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Part 3
Part 3 of 5:

Changing Sound Settings on Mac

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  1. 2
    Click System Preferences… . You'll find it in the drop-down menu.
  2. 3
    Click Sound . This speaker-shaped icon is in the System Preferences window. Clicking it opens the Sound window.
  3. 4
    Click the Output tab. It's at the top of the Sound window. This will bring up a list of your Mac's sound output options.
  4. 5
    Select your speakers' name. Click the name of your speakers to do so. Doing this selects your speakers as your Mac's audio output location.
  5. 6
    Make sure that the "Mute" box isn't checked. This box is in the lower-right side of the Output tab; if it's checked, click it once to uncheck it.
  6. Make sure that the volume is sufficient on your speakers, then play a video or a song. If your speakers work, you can stop here; if not, try updating your speakers' drivers .
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Part 4
Part 4 of 5:

Updating Drivers on Windows

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  1. 2
    Open Device Manager. Type device manager into Start , then click Device Manager when it appears at the top of the menu.
  2. 3
    Double-click Audio inputs and outputs . You'll find this option near the top of the Device Manager window. Doing so prompts the Audio inputs and outputs heading to expand and show more options below it.
    • If you see several indented options directly below this heading, it's already expanded.
  3. 4
    Select your speakers' name. Click the name of your speakers, which is usually a combination of the speakers' manufacturer and model number, under the Audio inputs and outputs heading to do so.
  4. 5
    Click the "Update device driver" icon. It's a black box with a green, upward-facing arrow near the top of the window. Doing so opens a pop-up menu.
  5. 6
    Click Search automatically for updates driver software . This option is in the pop-up menu. Your computer will begin searching for up-to-date drivers for your speakers.
  6. 7
    Follow any on-screen instructions. In most cases, the drivers will install automatically, and you'll see a confirmation once they're done. For some speakers, you may need to click through a menu or restart your computer when prompted.
    • If no new drivers are available for your speakers, you'll see a message that says "The best drivers for your device are already installed" in the pop-up menu, though you can click Search for updated drivers on Windows Update to check the Windows Update service.
  7. Make sure that the volume is sufficient on your speakers, then play a video or a song. If the speakers were disabled because of an issue with their drivers, they should work now.
    • If your speakers still aren't working, you'll need to take them (and/or your computer) into a tech department and explain the problem you're having to a technician there.
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Part 5
Part 5 of 5:

Updating Drivers on Mac

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  1. 2
    Click Software Update… . It's in the drop-down menu. Doing so brings up the software update window, which displays a list of available software updates.
  2. 3
    Click UPDATE ALL . As long as at least one update is available, you'll find this option in the upper-right side of the window.
  3. 4
    Wait for your updates to finish installing. This process will vary in time depending on how many updates you need to install, but if your speakers' software is out of date, the update will be included here.
    • You may be prompted to restart your Mac before you can proceed.
  4. Make sure that the volume is sufficient on your speakers, then play a video or a song. If the speakers were disabled because of an issue with their software, they should work now.
    • If your speakers still aren't working, you'll need to take them (and/or your computer) into a tech department and explain the problem you're having to a technician there.
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Community Q&A

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  • Question
    What should I do if my headphones work but my speakers do not?
    Community Answer
    On Windows, find your sound settings and select "playback devices", then make sure that your computer speakers are enabled.
  • Question
    What do I do if only one speaker is working?
    Community Answer
    Your digital audio cable is loose, try to tilt it gently, bend it or push it in more.
  • Question
    How can you replace internal speakers inside a laptop?
    Community Answer
    If you wanted to get rid of the internal speakers, you'd have to do some DIY, which would involve working some components. That's not exactly the easiest thing to do on a laptop, but if you simply connected speakers externally (into a speaker port that should be on the left or right side of the laptop), the external speakers will override the internal speakers.
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      Tips

      • When looking for drivers for your speakers, you can check the speakers' website for driver downloads. You'll usually find them in the "Support", "Downloads", or "Help" section.
      • If you just bought your non-working speakers and they're still under warranty, take them back and ask for a replacement set. Do not attempt to take them apart.
      • You can check the soldering connections and the internal wiring on speakers by opening up their cases. This isn't recommended unless your speakers are both old/outdated and no longer under any kind of warranty.
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      Warnings

      • It's often cheaper to buy a new set of speakers than it is to get your current set repaired.
      • Taking apart and physically repairing speakers requires a large degree of technical knowledge. Unless you know what you're doing, don't try to re-solder or otherwise repair your speakers' internal parts.
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