When you need to split video and audio from multiple MP4 videos simultaneously, you can improve efficiency with office batch processing software. This article demonstrates the complete workflow via HeSoft Doc Batch Tool : from the video tool, select the option to separate video and audio, batch add files or import videos from a folder, choose audio formats such as mp3, aac, opus, ogg, set the save location and start processing, ultimately obtaining audio and video files grouped by video name.
Video files are becoming increasingly common, but many office needs do not require complex editing; instead, they require quickly completing standardized processing. For example, extracting the audio from multiple MP4 videos for dictation, removing the sound from video footage to hand off to a editing colleague for re-dubbing, splitting training screen recordings into audio and silent video files for separate archiving, or managing a batch of materials by separating them into "audio files" and "video files."
These needs seem simple, but if the number of files is large, manual processing can be highly inefficient. Each video requires opening software, selecting export, setting the format, naming the file, and saving the result, which is not only time-consuming but also prone to issues like inconsistent formats, misplaced files in the wrong directories, and missed videos. For enterprise offices and content teams, batch processing is a more reliable approach.
The batch method for separating video and audio described in this article uses HeSoft Doc Batch Tool . It is an office software whose core value lies in batch processing files, reducing repetitive labor, and improving daily office efficiency. Through the software's video tool, multiple MP4 files can be split into audio files and silent video files at once, suitable for users who need stable, repeatable, batch processing of video materials.
Applicable Scenarios: Why Batch Split Multiple MP4s into Audio and Silent Video
Video and audio separation can be understood as outputting the sound track and video track from a video file separately. It is not a simple format conversion, nor is it merely deleting the sound; it allows users to obtain two types of independently usable materials simultaneously.
In course production, a lecturer's recorded video may need to retain both the picture and a separate saved copy of the narration audio. The audio can be used for generating transcripts, creating subtitles, or providing students with an audio version of the course; the silent video can then be used for re-synthesizing background music, re-dubbing, or later editing.
In short video creation, operators often need to process large quantities of material. Some material footage is usable, but the original sound is unsuitable; some material has valuable audio, but the picture may not be needed. After batch audio/video separation, the team can use the audio and video separately, improving material reuse rates.
In meeting and interview collation, screen recording files are typically large and not convenient for direct speech-to-text conversion. Batch extracting them into an audio format like mp3 first, and then handing them over to a transcription tool, is much more convenient. Meanwhile, the silent video can still be kept as visual reference material for subsequent review and archiving.
In file management, separating multiple videos and generating result folders by name also better suits office material management habits. Each video corresponds to its own audio and video results, eliminating the need to repeatedly check among a pile of mixed files when searching.
Effect Preview: File Structure Changes Before and After Processing
Before processing, the sample folder contains a batch of MP4 video files. The visible filenames include Video test 18.mp4, Video test 19.mp4, Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, and Video test 30.mp4. These files are all the objects of this batch processing.
This pre-processing state is very common: a folder filled with multiple video clips, where the user wants to perform the same operation on all of them. If done manually, it would require repeating the process 6 times; if the number of files were 60 or 600, the repetition cost would be even more apparent.
After processing, multiple folders named after the original video names appear in the output directory, such as Video test 18, Video test 19, Video test 22, Video test 23, Video test 24, and Video test 30. Opening the Video test 19 folder reveals two result files: Video test 19.mp3 and Video test 19.mp4.
This indicates that the software has split Video test 19.mp4 into an audio file and a video file. The audio file is output in the selected format, mp3 in the example; the video file is used to retain the separated picture. The processed directory structure is clearer than piling all result files together, making it especially suitable for project delivery and material archiving.
Operation Steps: Complete Workflow for Batch Separating Video Picture and Sound
The specific process is explained below with operation screenshots. Overall, this function uses a step-by-step wizard: first select the records to process, then set processing options, then set the save location, and finally start processing. For office users unfamiliar with video software, this process is relatively easy to get started with.
Step One: Open Video Tool and Select the Corresponding Function
After launching HeSoft Doc Batch Tool , find "Video Tools" in the left navigation bar. After clicking, the main interface displays a set of video-related function cards. In the screenshot, it can be seen that the "Video Tools" category includes multiple batch functions, such as separating video picture and sound, deleting sound from video, deleting image from video, adding watermarks to video, converting video to MP4, converting video to AVI, converting video to MKV, converting video to MOV, converting video to FLV, converting video to WMV, converting video to WebM, converting video to MPEG, etc.
The goal this time is to separate sound and picture, so click the first function: "Separate video picture and sound." The function's description is "Batch separate video files into silent video and audio files."
The expected result of this step is entering the audio/video separation task page. Be careful not to mistakenly select "Delete sound from video" or "Delete image from video." The former might only yield a silent video; the latter leans towards keeping only the sound. "Separate video picture and sound," however, will output both types of results, which better fits the need described in this article.
Step Two: Add Files or Import Files from Folder
After entering the task page, the current function name is still visible as "Separate video picture and sound." There are two main import buttons at the top right of the page: "Add Files" and "Import Files from Folder."
"Add Files" is suitable for selecting a small number of specific videos; "Import Files from Folder" is suitable for processing a large number of videos from a directory. For batch processing, the latter is often more efficient. As long as the MP4 files to be processed are placed in the same folder beforehand, they can be imported in one go.
After import, the file list displays detailed information for each video. The example has 6 records, with names corresponding to Video test 18.mp4, Video test 19.mp4, Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, and Video test 30.mp4. The path column shows the file location, and the extension column shows mp4.
The task at this step is not to process immediately, but to first verify the list. Confirm the file count is correct, the file paths are from the expected directory, and the extensions meet this processing requirement. If there are files in the list that don't need processing, they can be deleted via the operation column; if the import was wrong, you can click "Clear" to reselect. After confirming everything is correct, click the "Next" button at the bottom of the page.
Step Three: Select Audio Output Format
After entering "Set Processing Options," the page displays "Audio Format." The options include mp3, aac, opus, ogg. In the screenshot, mp3 is selected.
The settings here will apply to all videos in the batch task. Meaning, if mp3 is selected, all imported videos will output corresponding mp3 audio files; if aac, opus, or ogg is selected, the output will follow the chosen format.
How to choose a format? For general office work, playback, transcription, sending to colleagues, or long-term archiving, mp3 is usually more suitable due to its strong compatibility. aac fits some audio/video workflows; opus and ogg suit specific tools or open-format needs. For most users, directly selecting mp3 can reduce subsequent compatibility issues.
After selection, continue by clicking "Next."
Step Four: Set Save Location to Avoid Mixing Results with Original Files
The third step in the process is "Set Save Location." Although the screenshot doesn't show the specific content of this page, it's clear from the software flow that specifying a result save directory is necessary before batch processing.
It is recommended to set the output directory to a new folder. For example, the original videos are in "Test folder 1," the processing results can be saved to "Test folder 2" or "Video Audio Separation Output." This differentiates the original videos from the processing results, making checking and backing up easier.
From the post-processing screenshot, it can be seen that the output results generate folders based on the video names. This structure is very suitable for batch tasks: each folder is the separation result for one video, containing the corresponding audio and video files. Compared to mixing all mp3 and mp4 files in one directory, saving them in separate folders is less likely to cause confusion.
Step Five: Start Processing and View Output Results
After completing the save location setting, proceed to the 4th step "Start Processing." Before starting, it is advisable to reconfirm the task list, audio format, and save location. Once confirmed correct, launch the batch processing; the software will automatically process records one by one from the list.
After processing is complete, open the output directory to view the results. Taking Video test 19 from the example, opening its corresponding folder shows Video test 19.mp3 and Video test 19.mp4. The former is the audio separated from the video, and the latter is the silent video file retaining the picture. Other videos generate corresponding results in a similar manner.
At this point, the process of batch splitting multiple MP4 videos into audio and silent video is complete. The focus of the entire process is not on complex settings, but on importing once, unifying rules, and outputting in batch.
Frequently Asked Questions and Handling Suggestions
1. Why are multiple folders created after processing?
Based on the result image, the software generates a corresponding folder for each video name. This method facilitates management because the audio and video results for each video are kept together. For batch processing, this is clearer than dumping all results together in the same directory.
2. The original video is MP4, will I still get an MP4 after processing?
The example shows the post-processing folder still contains Video test 19.mp4, alongside the newly generated Video test 19.mp3. It can be understood that the software saved a copy of the video picture file and separately saved the audio file after separating the sound. To be safe, it's recommended to save the results to a new directory and not mix them with the original files.
3. Can I process videos with different names at once?
Yes. As seen in the import list, multiple videos with different names exist as multiple records. The batch task processes according to the list records. It's recommended that filenames be as clear as possible, avoiding completely indistinguishable naming conventions (e.g., repeatedly using "1.mp4", "New Video.mp4" en masse).
4. How to reduce errors in batch processing?
Organize the folder before processing, confirming it only contains the videos needing processing; after import, verify the record count and extensions; confirm the audio format in the processing options; select an empty folder or dedicated directory for the save location. For particularly important materials, it's advisable to process a small batch sample first, confirm the results are correct, and then process all files.
5. Which video formats is this method suitable for?
The examples in this article use MP4 files, and the extensions in the screenshot list also show as mp4. The software's video tool interface also showcases various video format conversion functions, but concerning the audio/video separation process demonstrated in this article, users are advised to rely on the actual import list and the software's supported formats. If you mainly process MP4, this is a very typical usage scenario.
Summary: Processing Video with an Office Software Mindset, Batch Separation is More Efficient
When multiple MP4 videos need to be split into audio and silent video, there's no need to open editing software one by one and repeatedly export. Using HeSoft Doc Batch Tool , this task can be completed with a more office-automation-oriented approach: select "Separate video picture and sound" in "Video Tools," batch import files, uniformly select the audio format, set the save location, and then start processing.
The greatest benefit of this method is saving time on repetitive operations and making the output results more standardized. Whether you are processing course recordings, meeting videos, short video materials, or project archive files, as long as the need is to batch separate picture and sound, you can follow the workflow in this article. It is recommended to organize the original video folder before formal processing and select a clear output directory, so you can quickly check, deliver, and reuse materials after processing is complete.