Why Is There No Sound on My MP4? Fix It with 5 Simple Methods [100% Free]

When you're ready to enjoy an MP4 video from the internet, only to find that it has no sound, it can be quite frustrating. However, this doesn't mean it's irreversible. Let's delve into 5 effective solutions to fix the MP4 no sound issue:

Fix 1: Solve MP4 Video No Sound Issue with Video Repair Software

As mentioned earlier, video corruption is a primary cause of MP4 files having no sound. When your video becomes damaged, the audio function is affected since the audio portion is corrupted. In such cases, you can修复文件使用专业的视频修复工具，如Fixo Video Repair Tool.

Here are some standout features of this video repair software:

• Repair corrupted MP4 files using its built-in advanced repair tool.
• Address common MP4 issues, such as when the MP4 file won't play.
• Fix other video and audio issues like audio and video being out of sync.

Here's a step-by-step guide to assist you in repairing MP4 audio not playing using the Fixo Video Repair tool:

Step 1. Open Fixo on your local PC. Click "Video Repair" and add the corrupted MP4/MOV/AVI/MKV/3GP/FLV/MKV/WMV video files by clicking "Add Videos".

Step 2. Move the cursor to a video and click the "Repair" button to initiate the single video repair process. If you wish to repair all videos, click "Repair All."

This image shows the step to select videos for repair in the software.

Step 3. Wait a few minutes for the corrupted videos to be repaired. Click the play icon to preview them. To save an individual video, click the "Save" button next to the play icon. If you wish to save all the repaired videos, select "Save All."

Step 4. If the quick repair fails, proceed with the advanced repair mode. Click "Advanced Repair" and add a sample video. Select "Confirm" to proceed.

Step 5. A list of detailed information about the corrupted and sample videos will appear. Click "Repair Now" to initiate the advanced video repair process. Once the repair is finished, you can preview the videos and click the "Save" button to save the repaired video files to a suitable location.

Alternatively, you can watch the video tutorial below to learn how to fix a corrupted MP4 video using Fixo Video Repair and Online Video Repair tools, and also convert the video format with VLC media player:

• 00:41 - Repair Damaged Video with Fixo Video Repair tool
• 02:02 - Repair Corrupted Video with Online Video Repair tool
• 02:44 - Convert Video Format with VLC media player

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Solution 2: Repair MP4 No Audio Issue with Online Video Repair Tools

If downloading software seems inconvenient, we offer a hassle-free alternative. The Online Video Repair tool can also fix corrupted videos. Utilize this online video repair tool to repair your video and rectify any logical issues effortlessly.

Repair OnlineFor all video types This translates to: Repair OnlineFor all video formats

This solution is not only free, but it also boasts several notable features, including:

• Repair corrupted video files on Android and iPhone or other devices
• Fix videos from cameras, dashcams, USB devices, CCTV systems, damaged discs, and various other devices
• No need to install extra software as this tool works virtually anywhere with an internet browser
• Online Video Repair utility supports the recovery of almost all popular video formats

Now, follow the tutorial below to fix your MP4 video online:

**Step 1. Open the Online Video Repair tool and Upload the Troubled Video**

Open the Online Video Repair tool: https://repair.tools.com/, click on "Update Video," or simply drag and drop a damaged, broken, or non-playing video into the designated area on the right to upload it.

Step 2. Enter a Valid Email Address and Start Repairing the Video

Enter a valid email address and click "Start Repairing" to upload and fix the malfunctioning video.

Step 3. Wait for the Automatic Uploading and Repairing Process to Finish

This online repair tool will automatically upload and fix the corrupted or damaged video for you. You can keep the repair page open and go about your other tasks.

Uploading and repairing video

Step 4. Enter Extraction Code and Download the Repaired Video

Once the repair process is complete, you can preview the video on the right panel. Additionally, you'll receive an email with a video extraction code.

Go find the code, re-open the online repair page. Then click "Download Video", enter the extraction code, and click "OK" to start downloading the repaired video.

Please enter the extraction code to download the repaired video.

Solution 3: Identify and Install the Necessary Audio Codecs to Resolve MP4 No Sound Issue

When original audio codecs supported by the media player are absent from your system, your MP4 video will also have no audio. However, there's a simple solution. You can attempt to install the appropriate codecs to play your MP4 video, such as the Microsoft MP4 codec for Windows Media Player. To view codec information in Windows Media Player and check which codec your MP4 file requires, follow these steps:

Step 1. Locate "Start" and type Windows Media Player, then press the "Enter" key.

Step 2. Press "Alt" + "H" to open the "Help section." Then, select "About Windows Media Player."

Step 3. Click "Technical Support Information" in the new window that appears.

Step 4. When a pop-up appears, choose where you want to open the file. Just select "Choose your Web Browser" to view all audio and video codec information on your system.

Step 5. If you don't need any audio codecs, simply download a codec pack for Windows Media Player from a website.

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Fix 4: Convert the MP4 File to Another Video Format to Solve No Sound on MP4

If the MP4 file still has no sound, attempt converting it to another format. Numerous video format converter software options are available online; select the one that best suits your requirements. These tools allow you to convert MP4 files to formats like AVI and WMV codecs. However, if the MP4 files remain unplayable even after conversion, utilize tools like Fixo Video Repair for assistance:

Here, let's take the VLC media player, with which you can perform the VLC video repair, as an example:

Step 1. Open the VLC media player and go to "Media." From there, choose "Convert/Save..."

Translation: Select "Convert" or "Save".

Step 2. Tap on "Add" to select the MP4 video file to be converted.

Step 3. Click "Convert," which is the last option in the dropdown menu under "Convert/Save."

Step 4. Choose an export format.

Step 5. Tap on the "Browse" button. Next, select the specific location where you want to save your converted video file.

Click "Browse"

Step 6. Tap on "Start" to begin the process.

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What should you do if your MP4 files become corrupted? Use the best MP4 video repair tool - MP4 file repair software, along with other methods, to fix corrupted MP4 videos. These top 5 methods effectively repair corrupted video files, including MP4, MOV, and AVI.

Fix 5: Open MP4 with Another Media Player to Resolve No Sound in MP4

Suppose your system's default media player, such as Windows Media Player (WMP), refuses to play the MP4 video. In that case, you can try this straightforward solution that is often overlooked - use a different media player. You should give alternative players a chance, such as VLC, QuickTime, KMPlayer, 5KPlayer, or RealPlayer. The most typical approach is to open your MP4 file with a VLC media player, following these steps (确保你已经下载了VLC媒体播放器): 1. Launch the VLC media player. 2. Click on "Media" in the top menu bar. 3. Select "Open File" from the drop-down menu. 4. In the "Open Media" dialog box, navigate to the location where your MP4 video is saved. 5. Select the file and click "Open." 6. The MP4 video should now start playing in VLC. This method often resolves playback issues due to compatibility or missing codecs.

Step 1. Choose the MP4 media file.

Step 2. Right-click on the MP4 media file and choose "Play with VLC media player".

Expert Tips: How to Prevent MP4 Files from Becoming Corrupted

If proper precautions are taken, accidental file corruption can be prevented. Here are some expert tips to help you effectively avoid file corruption. You should: 1. Regularly back up your files: Ensure you have a recent backup of all important files in case of any unexpected issues. 2. Use reliable storage devices: Choose reputable brands for external hard drives, USBs, or cloud storage services to minimize the risk of hardware failures. 3. Keep software updated: Regularly update your operating system, applications, and antivirus software to patch any vulnerabilities that could lead to corruption. 4. Avoid power outages: Use a stable power source and consider investing in an uninterruptible power supply (UPS) to protect against sudden power cuts. 5. Properly close programs: Always exit applications properly instead of force-quitting or abruptly shutting down your computer, as this can lead to file corruption. 6. Manage antivirus scans: Schedule antivirus scans during idle times to avoid interrupting critical processes that might corrupt files. 7. Be cautious with downloads: Only download files from trusted sources to reduce the risk of malware or viruses causing corruption. 8. Use file compression wisely: While compressing files can save space, excessive or improper use can sometimes lead to corruption. Use reliable tools and verify the integrity after compression. 9. Control access permissions: Limit access to sensitive files and ensure users have appropriate permissions to prevent accidental changes or modifications. 10. Monitor system health: Regularly check for signs of hardware failure, such as disk errors, and address them promptly. By following these guidelines, you can significantly reduce the chances of file corruption and protect your valuable data.

• Install antivirus software on your computer: Having antivirus software installed can protect against all potential risks.
• Carefully insert and remove external drives from the computer: Always close all programs and windows before using an external storage device. On the taskbar, click the "Safely Remove Hardware" button. Wait for the "Safe to Remove Hardware" message before disconnecting your external drive.
• Edit a duplicate of the original video file: Always keep a backup of the original video. Edit the copy to ensure the original file remains unchanged.
• Handle video storage devices with care: Do not remove the SD card from the camera or computer while it's in use. Avoid connecting your external media to multiple computers. Don't attempt to store videos when the drive or memory card is full.

FAQs on How to Fix MP4 No Sound

If you're still feeling confused after reading this post, here are some frequently asked questions to help you better address this error:

1. Why is there no audio in my MP4 file?

There are numerous reasons behind an MP4 video having no sound. One of the most common issues is that the audio codec of the video is not compatible with the media player you are utilizing on your computer.

2. Why isn't Windows Media Player playing MP4 audio?

When you use Windows Media Player to play an MP4 video but encounter no audio, it's most likely that your PC lacks the appropriate codec pack to play the video file.

3. How do I fix a video with no sound on a Mac?

The most frequent cause of muted videos on a Mac is the issue of QuickTime Player having no sound. To address this, follow these steps: 1. Click on the Apple menu and select 'System Preferences' on your Mac. 2. In the side panel, click on 'Sound'. 3. (You might need to scroll down.) On the right side, click on 'Output'. 4. Ensure that 'Mac Model Speakers' are selected, and verify that the 'Output volume' slider is not all the way to the left and that the 'Mute' checkbox is not checked.

Final Thoughts

How to fix a video file with no sound? This article discusses how to resolve an MP4 file with no sound issue on Windows. Occasionally, you can simply remedy the problem by using a different media player or by converting the file format. However, it is highly recommended to use a secure and user-friendly third-party tool like Fixo Video Repair, a specialized video repair tool designed to fix corrupted videos. Download and give it a try now!