This article explains how to use HeSoft Doc Batch Tool to batch convert multiple MP4 and other video files into AAC audio format. It combines before-and-after screenshots and software interface screenshots to illustrate applicable scenarios, file import, task selection, next-step processing, and precautions, helping users who need to organize course recordings, meeting videos, material videos, or short-video audio to reduce repetitive operations and improve batch file processing efficiency.
When there are dozens or even hundreds of video files in a folder, if you only want to keep the audio content from them, opening editing software one by one, exporting audio, and selecting formats can be very time-consuming. For example, when course screen recordings need to be organized into audio materials, meeting videos need to have speech content extracted, short video materials need to retain background sounds separately, or a batch of MP4 videos needs to be uniformly converted to AAC audio format, these tasks are essentially repetitive file processing jobs.
The problem this article aims to solve is clear: converting many video files into AAC audio files in batches. The tool used here is the office-software-oriented HeSoft Doc Batch Tool . Its core value is not complex editing but standardizing and batch-processing repetitive file handling workflows. Through the "Convert Video to AAC" function in the software, you can import multiple video records at once and process them uniformly, avoiding manual conversion one by one.
Applicable Scenarios: When is Batch Video to AAC Conversion Needed?
AAC is a common audio format that typically offers good compression efficiency and sound quality, suitable for audio archiving, mobile playback, content organization, and similar scenarios. For personnel in office administration, training, data archiving, and content operations, converting video to AAC is not just a format change but extracting the audio content from videos for convenient subsequent use.
Common scenarios include: batch converting meeting recordings to AAC for easier listening and minute-taking; converting online course videos to AAC to create learning materials that can be listened to anytime; saving audio from interviews, lectures, and event videos separately to reduce file size; extracting audio from multiple MP4 videos for editing, voiceover reference, or material archiving; and uniformly converting video files from different sources to AAC for team management in the same format.
If you only process one video, manual operation might be acceptable. However, when the number of videos increases, manual conversion brings three problems: first, repetitive clicks increase the chance of selecting the wrong file; second, inconsistent formats and save locations make later searching troublesome; third, it takes up a lot of time, affecting work that truly requires human judgment. HeSoft Doc Batch Tool is suitable for solving such batch file processing problems.
Effect Preview: Multiple MP4 Videos Before Processing, AAC Audio Files After
From the screenshot before processing, you can see that the folder contains multiple video files, with names including Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, Video test 30.mp4, Video test 32.mp4, Video test 33.mp4, etc. These files are all MP4 videos, and the icons include video thumbnails, indicating that the currently saved content is full video.
After the batch conversion is complete, the same batch of files is output in AAC audio format. In the post-processing screenshot, you can see that the file extensions have changed to .aac, for example, Video test 33.aac, Video test 32.aac, Video test 30.aac, Video test 24.aac, Video test 23.aac, Video test 22.aac. The main file names remain largely consistent, with only the format changing from video files to audio files, making subsequent lookup and matching with the original videos more convenient.
This effect demonstrates that the goal of batch video to AAC conversion is not to re-edit the video images but to output the audio content from the video files as AAC audio files. For users needing to uniformly organize materials, keeping the same file name while changing the extension is a relatively clear file management method.
Operating Steps: Using HeSoft Doc Batch Tool for Batch AAC Conversion
Step One: Enter Video Tools and Select the "Convert Video to AAC" Function
After opening HeSoft Doc Batch Tool , select "Video Tools" from the left-side function categories. The software's main interface will display a group of batch functions related to video processing, such as separating video visuals and sound, removing sound from video, removing image from video, adding watermarks to video, and various video format conversion functions.
In the screenshot, you can see that "Convert Video to AAC" is located in the video tools list, numbered 17, with the function description "Batch convert video files to AAC format." Clicking this function will bring you to the batch video to AAC processing page.
The purpose of this step is to first clarify this task's type. Since the software also includes functions like Video to MP4, Video to AVI, Video to MKV, Video to MOV, Video to MP3, Video to OGG, etc., you need to confirm that "Convert Video to AAC" is selected before starting, to avoid converting to other formats.
Step Two: Add the Video Files to be Converted
After entering the "Convert Video to AAC" page, you can see the current function name displayed at the top, the pending file list in the middle of the page, and two main buttons, "Add File" and "Import Files from Folder," at the top right. You can choose the import method based on the number of files.
If the number of videos to convert is small or the files are scattered in different locations, you can click "Add File" to import videos individually or by multiple selection. If all videos are already in the same folder, it's more suitable to click "Import Files from Folder," which allows you to batch-add the videos from that folder into the task list at once.
In the screenshot, 6 records have been imported, and the list shows information like serial number, name, path, extension, creation time, modification time, and actions. The extension column shows mp4, indicating that the currently imported files are MP4 video files. The summary area below shows the record count as 6, indicating that the software has identified 6 pending videos.
Step Three: Check Imported Records and Confirm File Scope
It is recommended to check the list before batch processing. Focus on three points: first, whether the file name is the video you intend to convert this time; second, whether the path comes from the correct folder; third, whether the extension meets expectations. The paths in the screenshot point to the same test folder, indicating these videos come from a consistent source, facilitating unified output and verification.
If a file was added by mistake, you can remove it using the delete action on the right side of each record; if there are many import errors, you can also use the "Clear" button at the top to re-add. You can also see "Filter" and "Sort" buttons on the right side of the list, useful for assisted searching and organizing when dealing with many records. There is no need to edit the video content here; just confirm that the files to be converted are correct.
Step Four: Click "Next" to Set the Save Location
After confirming the records are correct, click the "Next" button at the bottom of the page. From the interface progress, you can see the overall process is divided into three stages: "Select records to be processed," "Set save location," and "Start processing." You are currently in the first step; clicking "Next" will lead you to settings related to the save location.
The purpose of this step is to decide where the converted AAC files will be saved. It is recommended to choose a dedicated output folder for batch conversion, such as "Video to AAC Output" or "Audio Archive," to avoid mixing them with the original MP4 videos. For materials intended for later delivery or backup, a clear folder structure is very important.
Step Five: Start Processing and View Output Results
After setting the save location, continue following the on-screen process to enter "Start processing." The software will execute the conversion in batches according to the records in the list, outputting the imported video files as AAC audio files. After processing, check the results in the set save location; the file extensions should have changed to .aac.
From the post-processing effect image, you can see that the original multiple MP4 videos have generated corresponding AAC audio files. The main file names still retain names like Video test 22, Video test 23, etc., which helps in one-to-one matching with the original videos. For batch tasks, this automatically maintained naming relationship is more convenient than manual renaming.
Common Problems and Precautions
1. What is the difference between converting video to AAC and converting video to MP3?
Both convert the sound from video into an audio file, but the output format is different. The choice in this article is the AAC format, suitable for scenarios requiring AAC audio. If your goal is MP3, you should select the corresponding Video to MP3 function in the video tools, not the "Convert Video to AAC" function discussed here.
2. Is it necessary to play each video before batch conversion?
Not necessarily. The focus of batch processing is reducing repetitive operations. If the file source is reliable, you only need to confirm the name, path, and extension in the import list. If the file content is complex, spot-checking some videos to confirm they contain the required audio content is recommended.
3. Will the original MP4 videos be overwritten?
Judging from the pre- and post-processing effects, the conversion result generates AAC files; the original video and audio files are in different formats. For safety, it is recommended to select an independent output folder when setting the save location, avoiding storing new files mingled with important original files. You can also back up key videos before batch processing.
4. How to improve verification efficiency when there are many files?
You can first gather the videos to be processed into one folder, then use "Import Files from Folder." After importing, verify through the names, paths, and extensions in the list. If there are many records, you can use the filtering and sorting functions on the interface to assist checking, avoiding missed or incorrect selections.
5. Why is it recommended to use office software for batch conversion?
For office scenarios, many needs don't require complex video editing capabilities but rather a stable, clear, and repeatable batch processing workflow. HeSoft Doc Batch Tool turns the conversion function into stepped tasks, suitable for non-professional editors to quickly complete file format organization.
Summary: Entrust Repetitive Video-to-Audio Conversion Work to a Batch Processing Tool
Batch converting many video files to AAC audio format essentially solves the problem of repetitive labor. Using HeSoft Doc Batch Tool , you can first select "Convert Video to AAC" in "Video Tools," then batch import videos via "Add File" or "Import Files from Folder." After confirming the records, click "Next," set the save location, and start processing.
Compared to opening videos one by one and then exporting audio, batch processing significantly reduces click counts and waiting time, and results in more unified output file naming and clearer management. If you frequently need to process course recordings, meeting videos, material videos, or short video files, it is recommended to organize the original videos into a folder first, then use this function to convert them to AAC audio in one go, improving daily office and material organization efficiency.