When a folder contains a large number of MP4 videos that need to be split into video and audio, exporting them one by one with editing software can be very time-consuming. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to leverage the batch processing capabilities of office software to import multiple video files at once, select an audio format, and batch generate corresponding silent videos and audio files. It is suitable for scenarios such as material organization, course editing, dubbing processing, and archival backup.
In daily office work, content creation, and material organization, a common problem often arises: a folder contains dozens or even hundreds of video files, and each video needs its picture and sound saved separately. For example, course screen recordings need the lecture audio extracted, short video materials need silent footage preserved for re-dubbing, meeting recordings need the sound converted to audio for easier transcription, or during media library organization, you might want each video to have a corresponding silent video file and an audio file.
If you use traditional video editing software to open and export them one by one, the steps are not only repetitive, but it's also easy to miss processing, select the wrong format, or save to the wrong location. For office scenarios, a more suitable approach is to use office software that supports batch file processing, importing a batch of videos at once, uniformly setting the output format and save location, and then letting the software complete the separation automatically.
Below, we will use HeSoft Doc Batch Tool as an example to introduce how to batch separate the picture and sound from many video files. The core issue this article addresses is: how to split multiple MP4 videos into silent video files and audio files in one batch, ensuring the results are easy to find and archive.
Applicable Scenarios: When is it suitable to batch separate video picture and sound?
Batch separating the picture and sound from a video is essentially outputting the video track and audio track from the original file separately. This operation is very common for individual users, operations personnel, training instructors, administrative office staff, and video editors.
The first type of scenario is material repurposing. For instance, if you have a batch of scenery videos, product showcase videos, or short video materials and want to keep the original visuals but not the original sound, you can batch-generate silent videos first, and then uniformly add new voiceovers, background music, or commentary audio tracks.
The second type of scenario is audio extraction. Meeting recordings, course screen captures, interview videos, and live replay streams often contain a large amount of voice content. You might need to save the sound separately in audio formats like mp3, aac, opus, or ogg for purposes like dictation, text transcription, subtitle creation, or data backup.
The third type of scenario is file archiving. Before processing, a folder might only contain a batch of mp4 videos; after processing, each video can correspond to an independent folder containing the separated audio and video files. This structure is more suitable for subsequent management, making it less likely to mix up materials from different videos.
The fourth type of scenario is batch office work. Many users don't need complex editing but simply need to complete repetitive file processing. HeSoft Doc Batch Tool is positioned as office software, and its advantage lies in batch processing files, reducing repetitive work, and improving efficiency, rather than having users perform the same operations repeatedly on each video.
Result Preview: Before processing, a batch of MP4 videos; after processing, corresponding results are generated per video
From the example before processing, you can see that the folder contains multiple MP4 video files, such as 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 video materials pending processing and need uniform audio-video separation.
The characteristic of the pre-processing state is that all videos are stored centrally in one folder, with a large number of files. If you had to open each video individually and then export the audio and silent video, the operation would be extremely tedious. Especially as the number of videos continues to increase, the time cost of manual processing grows exponentially.
The post-processing effect is much clearer: each video generates a corresponding folder, with the folder name being consistent with or highly corresponding to the original video name. Opening one of the result folders, for example, Video test 19, shows that it contains an audio file, Video test 19.mp3, and a video file, Video test 19.mp4. In other words, the original video has been split into independent sound and picture video files.
The benefit of this output method is very intuitive: one result folder corresponds to one video, so audio and video files won't get mixed up. Whether you are re-dubbing, transcribing audio, editing the picture, or archiving and backing up later, you can directly find the corresponding material.
Steps: Using Office Software to Batch Separate Picture and Sound from Videos
The following explanation follows the actual operation sequence in the software interface. The software used in the screenshots is HeSoft Doc Batch Tool , and its left-side interface includes categories for Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Picture Tools, Video Tools, Audio Tools, etc. This article uses the "Video Tools" within it.
Step 1: Enter Video Tools and Select "Separate Picture and Sound from Video"
After opening HeSoft Doc Batch Tool , find and click "Video Tools" in the function categories on the left. Upon entering the Video Tools page, you will see multiple function cards related to batch video processing, such as Remove sound from video, Remove image from video, Add watermark to video, Convert video to MP4, Convert video to AVI, Convert video to MKV, Convert video to MOV, Convert video to FLV, etc.
What we need to achieve this time is audio-video separation, so we need to click the first function card: "Separate Picture and Sound from Video". The description for this function card is "Batch separate video files into silent video and audio files", which aligns with the requirements to be processed in this article.
The purpose of this step is to enter the dedicated workflow for batch audio-video separation. Once entered, the software will guide the user through a wizard-style process for selecting files, setting processing options, setting the save location, and starting the process.
Step 2: Add the video files to be processed or import them from a folder
After entering the "Separate Picture and Sound from Video" function, the current function name is displayed at the top of the page, followed by the step-by-step process. The first step is "Select records to process". In the upper right corner, you can see two buttons: "Add File" and "Import files from folder".
If the number of videos to process is small, or if the videos are spread across different locations, you can click "Add File" and manually select the mp4 videos to process. If all videos are stored in the same folder, it is more recommended to click "Import files from folder", allowing the software to read the video files inside that folder all at once.
After import, the files will appear in the list. In the example, 6 records have been successfully imported, and the list shows columns for Sequence Number, Name, Path, Extension, Created Time, Modified Time, and Actions. The extensions are all .mp4, indicating that these files all belong to the scope of this processing. The bottom of the page also shows the record count as 6, which helps confirm whether the import is complete.
The expected result of this step is: all videos needing picture and sound separation appear in the processing list. If you find any videos imported that don't require processing, you can use the delete icon in the Actions column to remove individual records; if you need to reselect, you can also use the "Clear" button on the page and re-import. Once the list is confirmed to be correct, click "Next" at the bottom.
Step 3: Select the audio format for export
Upon entering the second step, "Set processing options", the interface will display the "Audio Format" option. In the screenshot, four formats are available: mp3, aac, opus, and ogg, with mp3 currently selected.
If there are no special requirements, mp3 is recommended. mp3 has good compatibility and is suitable for use in most players, transcription tools, office software, and mobile devices. If you have specific needs for particular platforms or audio processing workflows later, you can also choose aac, opus, or ogg as needed.
The purpose of this step is to uniformly set the audio file format generated after separation for all videos. The advantage of batch processing is that you only need to select the format once, and the software will output all videos in the list according to the same rule, avoiding repeated settings for each video.
After selecting the audio format, click "Next" to proceed to set the save location.
Step 4: Set the save location for the output files
From the process bar, you can see that the third step is "Set save location". Although the provided screenshot does not show the specific details of the save location page, based on the software's wizard process, after completing the processing options, you need to specify where to save the result files.
It is recommended to set the output location to a new, empty folder, such as "Video Audio-Video Separation Results" or "Test folder 2". Doing so has two benefits: first, the processed files won't mix with the original videos; second, checking the results later is more intuitive, allowing you to quickly judge which videos have been processed successfully.
Looking at the post-processing effect images, you can see that the software generates a corresponding result folder for each video, for instance, the Video test 19 folder. Opening that folder reveals the separated audio and video files. This directory structure is excellent for batch archiving.
Step 5: Start Processing and Check the Results
After completing the save location setting, the workflow proceeds to the fourth step, "Start Processing". Once you've confirmed that the pending records, audio format, and save location are all correct, you can start the batch processing. The software will automatically execute the separation operation according to the sequence of videos in the list.
After processing is complete, open the output folder to inspect it. Taking Video test 19 from the example, the processing result contains Video test 19.mp3 and Video test 19.mp4. The mp3 file stores the sound separated from the video, and the mp4 file stores the separated picture video. This achieves the purpose of batch-separating video files into silent video and audio files.
If you imported 6 videos at once, you would normally get 6 corresponding sets of results; if you import more videos, they can also be batch-processed in the same way without handling each one individually.
Common Questions and Notes
1. Why is it recommended to use "Import files from folder"?
When there are many videos, importing files from a folder is more efficient than adding them one by one. It's suitable for processing a batch of videos within the same directory, such as course materials, screen recordings, or video folders exported from a phone. After import, checking the number and file names in the list can reduce the risk of missing files.
2. How to choose among mp3, aac, opus, and ogg?
If the primary use is for daily playback, voice transcription, sending to colleagues, or uploading to common platforms, mp3 is usually the safest choice. aac also has good compatibility and is suitable for some audio-video processing workflows. opus and ogg are better suited for users who have requirements for open formats or specific application environments. For most office users, the default choice of mp3 is sufficient.
3. Is the processed video file the original file?
From the effect images, you can see that video files and audio files with the same or corresponding names are generated in the result folder. To avoid misunderstanding, it is recommended to set the output location to a new folder and not directly overwrite the original materials. After processing is finished, you can play the result files first to confirm that the sound and picture meet expectations before deciding whether to archive or delete the original files.
4. Should I back up the original videos before batch processing?
For important videos, backing them up first is advisable. Although the goal of batch processing software is to generate new result files, the original materials in an office scenario are often irreplaceable. Keeping the original videos in a "Raw Folder" and the processing results in an "Output Folder" is a safer file management practice.
5. How to avoid confusion when file names are very similar?
You can organize the file names before processing, for example, naming them by project, date, or number. After processing, each video corresponds to one result folder, making management much clearer. In the example, filenames like Video test 18, Video test 19, Video test 22 directly correspond to the processing results.
Summary: Reduce repetitive exporting with batch processing to improve video office efficiency
Batch separating the picture and sound from many video files is suitable for various office scenarios, including course screen recordings, meeting videos, short video materials, product demo videos, and voiceover material organization. Using HeSoft Doc Batch Tool , you can import multiple MP4 videos at once through the "Separate Picture and Sound from Video" function within "Video Tools", uniformly select an audio format, and then batch-generate the corresponding silent video and audio files.
Compared to processing them one by one with editing software, the advantages of batch processing are very obvious: it reduces repetitive clicking, lowers the probability of missing a file, makes the output result structure clearer, and is more suitable for subsequent archiving and collaboration. If you currently have a batch of mp4 videos that need sound extraction or silent picture generation, it is recommended to first organize the original folder according to the steps in this article, and then use this function to complete the processing in one go.