How to Quickly Convert MP4 Files to AAC Format or Vice Versa

How to Quickly Convert MP4 Files to AAC Format or Vice Versa

Selena Thomas

September 14, 2021 09:20Posted by to Convert Video, MP4

There are several reasons why you need to convert between MP4 and AAC. MP4 is a standard video format, which AAC is the advanced audio coding. Therefore, a MP4 file is larger than an AAC in the same condition. Some people prefer to listen to music in the background when doing other tasks. In such case, you must extract audio from MP4 videos. Anyway, this guide tells you how to convert between MP4 and AAC.

MP4 to ACC

Part 1: Best Ways to Convert MP4 to AAC on Desktop

Although AAC is a lossy compression audio format, the quality is better than MP4. When converting MP4 to AAC, the output quality is a big concern. Fortunately, Blu-ray Master Video Converter Ultimate can resolve this issue. It enables beginners to produce AAC audio files from MP4 videos easily.

Main Features of the Best MP4 to AAC Converter

How to Convert MP4 to AAC in Batch

Step 1

Load MP4

Run the best MP4 to AAC converter after you install it on your PC. There is another version for Mac. Click Add Files menu at top left side and choose Add Files to open the source MP4 files. If you put all MP4 into a single folder, select Add Folder and open all of them in bulk.

Add File

Step 2

Set output format

After MP4 loading, you can edit the video files, such as split into clips or remove unwanted parts. When you are ready, click the Convert All to option at the top right side to pop up the profile dialog. Go to the Audio tab, search for AAC or proper audio format, and select it. Pick a preset and click the Settings icon to adjust the parameters.

Profile Format

Step 3

Convert MP4 to AAC

Go back to the home interface, and click the Folder icon at the bottom to set a destination folder. Finally, click on the Convert All button to begin converting MP4 to AAC immediately. According to our research, it only takes a few seconds to convert dozens of MP4 files, but it might be determined by your hardware and software.

Convert All

Part 2: How to Convert AAC to MP4 Online

In some cases, you just need to convert AAC to MP4 occasionally. The web media converter is more convenient than desktop software. Blu-ray Master Free Online Video Converter, for example, is able to convert AAC to MP4 without installing any software. Moreover, it is free of charge without signup, file size or other limit. It won’t add watermark to your media files or upload them to server. The only thing you need is a good internet connection.

Step 1

Visit in your browser and download the launcher by hitting the Launch Free Converter button.

Download Launcher

Step 2

After loading, the launcher will pop up automatically. Hit the Add File button on the launcher to upload AAC files. The web video converter supports batch converting tool. Locate the bottom and select MP4 as the output format.

Convert MP4

Step 3

At last, click the Convert button to begin converting AAC to MP4 online. When converting is done, download the MP4 files to your hard drive.

Part 3: FAQs about Converting MP4 to AAC

How to convert MP4 to AAC in iTunes?

iTunes is a music library and manager but not media converter. It only can convert between AAC and MP3. When it comes to MP4 to AAC, you have to look for a multimedia converter for desktop or online.

Is AAC better than MP3?

The answer is determined by your purpose. In terms of audio quality, there is little difference between the two audio formats, although AAC is better than MP3. While they are totally different in the sound wave, it is difficult to tell which one is better.

How to play AAC on Windows?

By default, Windows Media Player cannot open or play AAC. You have to install a AAC player on your computer. Or install the extra codec package to WMP and play AAC music files on Windows smoothly.


This guide has told you two ways to convert between MP4 and AAC. It is not difficult to extract audio from MP4 videos and save as AAC files. For beginners, technical skill is a big problem. That is why we recommended Blu-ray Master Video Converter Ultimate. It is not only easy to use, but also able to produce AAC output with high quality from MP4 videos. If you have other questions or better suggestions, please feel free to leave a message below this post and we will reply on it as soon as possible.

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