Nova Zhang
Realtek HD Audio is a popular onboard sound card solution for motherboards, offering a cost-effective way to deliver audio to PC users. However, some users have reported issues with sound quality, particularly after upgrading to Windows 10, where various problems such as low volume, crackling, and distortion have been encountered. While Realtek drivers can be updated, and this may help in some cases, other solutions include disabling specific features like Dolby Digital Plus, DTS, and EAX, or even rolling back to a previous version of the driver. In some cases, Windows generic audio drivers may be preferred, or external DACs and amplifiers may be used to bypass the onboard audio altogether. Ultimately, there are a variety of factors that influence sound quality, and Realtek drivers are just one piece of the puzzle.
| Characteristics | Values |
|---|---|
| Audio Quality | Low and bad quality sound after Windows 10 upgrade |
| Issues | No bass, distorted and screeching sound |
| Solution | Disable Dolby, DTS or EAX |
| Solution | Uninstall and reinstall the correct Realtek drivers for Windows 10 |
| Solution | Update Nahimic to version 2.3 |
| Solution | Change power settings to increase minimum processor state |
| Solution | Roll back the Realtek audio driver to a previous version |
| Solution | Update to a newer version of the Realtek audio driver |
| Solution | Switch to Windows' generic audio driver |
| Solution | Set playback default format to 24 bits, 48000 Hz |
| Solution | Set bit-depth to 24-bit |
| Solution | Use an external DAC and amplifier |
| Solution | Use ASIO, WASAPI or Kernel Streaming to bypass Windows Mixer |
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What You'll Learn
Windows 10 upgrade issues
Upgrading to Windows 10 can sometimes cause issues with Realtek HD Audio, resulting in low and poor-quality sound. This can manifest as a lack of bass, distorted and screeching audio, or extremely low volume.
Troubleshooting Steps:
- Check for Updates: Before attempting any fixes, it is recommended to check for updates for both Windows and your Realtek drivers. This can be done by going to the Device Manager, right-clicking on the Realtek Audio driver, and selecting "Update Driver." If a newer version is available, Windows will install it. If not, you can download the latest driver from Realtek's website.
- Disable Dolby Digital Plus Effects: In some cases, the issue can be resolved by disabling Dolby, DTS, or EAX effects. To do this, go to the Playback Tab, double-click on your speakers, click on the Dolby tab, and turn it off.
- Adjust Power Settings: Issues with audio quality can sometimes be related to the power settings. To adjust these settings, right-click on the Windows Start button, select Power Options, and click on Additional power settings. From here, change the plan settings and adjust the advanced power settings. Increase the minimum processor state to 100% for both battery and plugged-in options.
- Roll Back Driver: If the issue persists, you can try rolling back the Realtek Audio driver to a previous version. Open the Device Manager, expand the "Sound, video and game controllers" section, right-click on the Realtek Audio driver, and select "Properties." From here, click on "Roll Back Driver."
- Switch to Generic Audio Driver: If none of the above solutions work, you can try using Windows' generic audio driver. Open the Device Manager, expand the "Sound, video and game controllers" section, right-click on the Realtek Audio driver, and select "Update Driver." Then, choose Windows' generic audio driver.
- Uninstall and Reinstall: If all else fails, you can try uninstalling and reinstalling the Realtek Audio driver. Make sure to download the correct drivers for Windows 10 from Realtek's website.
It is important to note that while Realtek drivers may have some compatibility issues with Windows 10, they can still provide good sound quality, especially when using basic drivers and no effects. Additionally, some Realtek drivers offer the ability to adjust output to match headphone impedance, which can be useful for audio customization.
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Dolby, DTS, EAX effects
Realtek HD Audio is known to have issues with low and bad quality sound after a Windows 10 upgrade. This can manifest as crackling, distorted sound, low volume, or extremely low volume. There are several fixes that can help improve sound quality in this scenario. One solution is to disable specific effects like Dolby, DTS, or EAX, as these may interfere with audio playback. Disabling all effects, however, may lead to undesirable consequences such as lower volume or unintelligible audio.
Now, let's delve into the specifics of Dolby, DTS, and EAX effects:
Dolby:
Dolby, or Dolby Digital, is a surround sound technology commonly used in movie theatres and home video formats like DVDs, Blu-ray Discs, and CDs. It offers a multi-channel audio experience, typically with 5.1 channels, including two subwoofers, a centre channel, two side channels, and high-frequency effects (HFE) channels for subtle background noises. Dolby Digital is a lossy format with compressed audio quality, allowing for faster encoding due to its lower bitrate. It is designed to trick the brain into perceiving sounds as coming from places where there are no speakers, creating an immersive listening experience.
DTS:
DTS (Digital Theater Sound) or Digital Theater Systems is a competitor to Dolby Digital, offering another surround sound format. DTS provides higher audio quality than Dolby Digital due to its lossless and less compressed nature. DTS can be encoded at higher bitrates of 754kbps or 1.5mbps, allowing for more channels in movie audio tracks. For instance, DTS is necessary for creating audio tracks with more than five channels, such as 7.1 or 11-channel setups.
EAX:
EAX stands for Environmental Audio eXperience and is a programming API developed by Creative Labs. It is designed to help game programmers create more immersive environments by adding environmental effects like reverb and standard DSP presets. EAX works in conjunction with Creative's 3D positioning technology (CMSS) to achieve surround sound effects. Unlike Dolby Digital and DTS, EAX itself is not a surround sound encoding technology but enhances the overall audio experience in gaming environments.
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Impedance and gain settings
The gain setting is the volume control on the amplifier. The highest possible sound quality is achieved when the Digital-to-Analog Converter (DAC) is at 100% and the amplifier is on the lowest gain setting. This is because the higher the amplifier has to amplify the input signal, the more the sound quality will be diminished. Therefore, it is recommended to stay on low gain for as long as possible as this is where the amplifier performs at its best.
Low gain allows for a wider range of volume, especially for in-ear monitors (IEMs) that have lower resistance. High gain, on the other hand, is necessary when using headphones with an impedance of 300 ohms or more, to achieve a louder volume. However, it is important to note that excessive loudness can lead to potential hearing damage, so it is advised to use the lowest volume setting that is comfortable for your hearing.
Additionally, adjustable gain settings can improve sound quality by optimizing the signal-to-noise ratio of the amplifier. Lower gain settings can reduce the noise floor of the amplifier, resulting in clearer and more pristine sound quality, especially at lower listening volumes. This is particularly crucial for critical listening sessions where every detail in the music matters.
Moreover, adjustable gain settings can enhance the dynamic range of the audio by accurately reproducing both the quietest and loudest parts of the music without distortion or compression. This results in a more immersive and engaging listening experience.
By matching the amplifier's output to the headphone's impedance, you can also protect your headphones from potential damage caused by overdriving. This is especially important if you plan on using a variety of headphones with different impedances.
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Windows default settings
Realtek HD Audio Manager is a settings panel that manages your audio devices. It allows you to maximise and enhance your sound output and functions as a Control Panel for your audio adapters. The Realtek High Definition Audio Driver is one of the most used sound drivers as it offers the best audio quality Dolby, DTS, and Surround Sound support.
If you are experiencing low and bad quality sound after a Windows 10 upgrade, there are a few things you can try. Firstly, check the Loudness Equalization box and click "OK" to close the Settings window. You can also try changing the sound quality from CD to DVD quality. If you are using lower-quality speakers, setting the sound quality too high can cause popping in your audio. Conversely, if the sound quality is set too low and you have good speakers connected, you may need to increase the setting.
You can also try changing the default format. Windows 10 includes an option for spatial sound, which enhances the sound field when listening through headphones. Enabling this option can sometimes cause normal audio to sound odd. Therefore, it is recommended to select the 'Off' option.
Another solution could be to change the default Power Options setting from "Balanced" to "High Performance". This can be done by going to the Control Panel and selecting Power Options.
If your audio problems started after a recent Windows update, you may need to roll back the Realtek audio driver to a previous version. To do this, right-click the Start menu, select Device Manager, expand the Sound, video and game controllers section, right-click the Realtek Audio driver, and select 'Roll Back Driver'. If that doesn't work, you can try updating the driver to a newer version.
Finally, you can try enabling the Acoustic Echo cancellation and Noise Suppression options in the Microphone Effects window. These features reduce the echo from the front speakers and static background noise during audio recording, respectively.
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ASIO, WASAPI, Kernel Streaming
Realtek HD Audio users have reported issues with sound quality, including low volume, crackling, and distorted sound after upgrading to Windows 10.
To address these issues, users have suggested disabling specific features such as Dolby, DTS, or EAX, as well as ensuring the use of the correct Realtek drivers for Windows 10. In some cases, reinstalling the audio driver or rolling back to a previous version has proven effective.
Now, regarding your query about ASIO, WASAPI, and Kernel Streaming:
ASIO (Audio Stream Input/Output) and WASAPI (Windows Audio Session API) are driver modes designed for professional audio applications. They ensure exclusive access to the sound interface for authorized software, preventing interruptions from system notifications or other unauthorized sources. Additionally, they minimize latency, enabling seamless recording and playback across multiple channels and devices. ASIO, in particular, is praised for its superior clarity and dynamics compared to WASAPI.
Kernel Streaming is another mode that bypasses the Windows Mixer and operates at the lowest level of audio processing on a computer. This mode is reported to deliver a very clean signal with reduced noise. Audirvana Studio software offers a functional Kernel Streaming mode, and some manufacturers provide ASIO drivers for external DACs.
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Frequently asked questions
Settings in the default “balanced” power plan can affect audio quality. When the minimum processor state is set too low, it can result in crackling and distorted sound. To increase this setting, follow these steps: Right-click the Windows Start button, select Power Options, click Additional power settings, click Change plan settings, click Change advanced power settings, scroll to and expand Processor power management, and change the value from 5% (default) to 100% for both On battery and Plugged in.
First, try updating the Realtek driver to a newer version, if available. If that doesn't work, download the driver from Realtek's website. If you still have audio problems, try switching to Windows' generic audio driver.
Set playback Default Format to 24Bits, 48000 Hz. This is generally good for most media and will slightly improve audio quality. If your Realtek Audio solution has a dedicated headphone amplifier, set the soundcards output impedance/gain (Ω = ohm) to a value close to the headphones' input impedance.
