FIX: Conexant ISST Audio not working in Windows 10

by Ivan Jenic

Troubleshooting Expert

Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and driver troubleshooting. When he's not tackling diverse...

Posted at: April 6 2021

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Depending on your sound card or the current version of the sound driver, you can face some sound problems in Windows 10.

For example, users of Conexant SmartAudio HD Audio or Conexant ISST Audio noticed sound issues after upgrading to Windows 10.

If you’re one of them, we’ve compiled a few workarounds for this problem. Let us know which one worked for you.

What can I do if Conexant ISST Audio is not working?

1. Update your drivers
2. Disable audio enhancements
3. Change maximum memory
4. Change the default sound format
5. Run the Audio Troubleshooter

1. Update your drivers

If you haven’t updated your drivers, we recommend you to head to the Device Manager and check for the updates of your drivers.

You can choose to search automatically for an updated driver or browse the computer for if you have a driver file.

Follow the on-screen instructions and don’t forget to restart your computer. In some cases, a restart is required in order for the new driver to work.

Alternativelly, you can use a dedicated software that does this jobs for you, while also recommending the right updates. Keep in mind that such a tool will be useful for any future similar scan.

Drivers are essential for your PC and all the programs that you use daily. If you want to avoid crashes, freezes, bugs, lag or any other problems, you will need to keep them updated. Constantly checking for driver updates is time consuming. Fortunately, you can use an automated solution that will safely check for new updates and apply them with ease, and that’s why we strongly recommend DriverFix. Follow these easy steps to safely update your drivers:

1. Download and install DriverFix.
2. Launch the application.
3. Wait for DriverFix to detect all your faulty drivers.
4. The software will now show you all the drivers that have issues, and you just need to select the ones you’d liked fixed.
5. Wait for DriverFix to download and install the newest drivers.
6. Restart your PC for the changes to take effect.

DriverFix

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Disclaimer: this program needs to be upgraded from the free version in order to perform some specific actions.

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Uninstall and reinstall the Conexant driver

1. While in the Device Manager, expand the Sound, video and game controllers section.
2. Right-click on the Conexant Smart Audio HD and click on Uninstall device.
3.  Now, go to View > Scan for hardware changes to reinstall it. Or use DriverFix for the same purpose. The latter will save you the time of searching for the right driver.

2. Disable audio enhancements

1. Right-click on the Speakers icon in the taskbar and open Playback devices.
2. Open your default playback device, by double-clicking on it.
3. Go to Enhancements tab and check Disable all enhancements.
4. Click OK and restart your computer.

Now try if your Conexant HD Audio works, if not, try some of the following solutions.

3. Change Maximum memory

1. Go to Search, type msconfig, and open System Configuration.
2. Go to the Boot tab.
3. Click Advanced options.
4. Set Maximum memory to 3072 (this happens to be the best option).
5. Restart your computer.

4. Change the default sound format

1. Right-click on the Speakers icon in the taskbar and open Playback devices.
2. Open your default playback device, by double-clicking on it.
3. Go to the Advanced tab.
4. Change the bitrate under Default sound format, until you find the one that’s working.
5. Click OK.

5 – Run the Audio Troubleshooter

Another quick solution is to simply run Windows 10’s built-in audio troubleshooter. To do this, go to Settings > Update & Security > Troubleshoot.

That’s it, we’ve already showed you how to solve Conexant HD microphone problems, and now, I hope this article will help you to solve sound problems, as well.

If you have any other Windows 10-related issues you can check for the solution in our Windows 10 Fix section.