When a batch of videos only needs to retain narration, interviews, meeting recordings, or background music, it is very time-consuming to open editing software one by one to delete the video track. This article uses HeSoft Doc Batch Tool as an example to explain how to use video tools in office software to batch remove the image from multiple MP4 videos, keeping only the original sound. The article includes a comparison of before and after effects, complete operation steps, and common precautions, suitable for office scenarios that require batch processing of video files and reducing repetitive operations.
In daily office work, data organization, course archiving, and material management, a common problem often arises: you have many video files, but what you really need to save is only the audio inside them. For example, meeting recordings only need to retain the spoken content, training videos only need to keep the lecture audio, interview footage only requires the sound record, or the video images of some files are inconvenient to keep, but the audio still holds value. If you open each file one by one with video editing software, delete the video track, and export it, the steps are not only repetitive but also a huge waste of time.
This article aims to solve the problem of "batch deleting the video track from many video files, keeping only the audio." The tool used here is HeSoft Doc Batch Tool , which is positioned as office software. Its core advantage is not complex editing, but batch processing of files. For multiple MP4 videos and the same batch of material files, as long as you select the corresponding video tool, import the files at once, and then process them according to the workflow, you can significantly reduce a lot of repetitive labor.
Applicable Scenarios: When is batch deletion of the image from a video needed?
Batch deleting the video image and keeping only the audio is suitable for the following common office scenarios.
First, archiving meeting recordings. After saving many online meeting recordings, the visual content might include participant avatars, screen-sharing content, or internal data, but subsequent review only requires listening to the speeches. In this case, you can batch delete the images, keeping only the audio for convenient audio data storage.
Second, organizing course and training materials. Training videos are usually large in size. If learners only need to listen to the explanation, or if a batch of course videos needs to be turned into a black-screen audio format, batch processing can reduce manual editing.
Third, organizing interviews, dictations, and voice records. For some interview videos, the image is not important; the key is the interviewee's voice. After batch removal of the images, material management becomes more focused.
Fourth, privacy and compliance processing. Before sending externally or sharing internally, if the video images contain sensitive information like faces, locations, or screen content, but the audio can be kept, you can use the "Delete Image from Video" function for unified processing.
Fifth, slimming down and categorizing material libraries. Some video materials only need background music, ambient sound, or narration. After batch removal of the image, they can be more easily managed based on audio content.
Effect Preview: Before processing, the video has an image; after processing, only the audio is kept.
Before processing, you can see multiple MP4 video files in a folder, such as Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, Video test 30.mp4, Video test 32.mp4, and Video test 33.mp4. The thumbnails show different video images, and after opening one of the videos, the player will also display normal image content.
As seen from the pre-processing effect, these files are all regular video files, containing both image frames and audio. If users only want to keep the audio content, they need to remove the image part from the video.
After processing is complete, the thumbnails for the same batch of videos turn black. When the video is played, the player's image area also shows a black screen, but the playback progress, timeline, and volume button are still present. This indicates that the video image has been deleted, while the audio content has been preserved.
It should be noted that the goal of this type of processing is to "delete the image from the video, keeping only the audio." In terms of effect, the original image is no longer displayed during playback, resulting in a black screen or an imageless state; as long as the original video contains audio, the processed file can continue to play the audio content.
Operation Steps: Using HeSoft Doc Batch Tool to batch delete video images
Below is an explanation of how to complete the batch processing, following the actual workflow shown in the screenshots. The key to the whole process is: entering the Video Tool, selecting "Delete Image from Video," importing multiple video files, setting the save location, and then starting the process.
Step One: Enter the Video Tool and select "Delete Image from Video"
After opening HeSoft Doc Batch Tool , find and click "Video Tool" in the function categories on the left. The main software interface will display multiple video-related functions, including "Separate Video and Audio," "Delete Audio from Video," "Delete Image from Video," "Add Watermark to Video," and various video format conversion functions.
This time, the goal is to batch delete the image from videos, keeping only the audio, so you need to select the third option, "Delete Image from Video." In the screenshot, the description for this function card is "Batch delete the image from videos, keeping only the audio," which perfectly matches the requirement of this article.
The purpose of this step is to ensure the software enters the correct batch processing task. If "Delete Audio from Video" is selected, the result will be keeping the image and removing the audio; if "Separate Video and Audio" is selected, it will enter a different processing logic. Therefore, before operating, you must confirm that the function name is "Delete Image from Video."
Step Two: Add the video files to be processed
After entering the "Delete Image from Video" function, you can see two buttons at the top of the interface: "Add File" and "Import Files from Folder." For a small number of files, you can click "Add File" and manually select multiple videos; if a batch of MP4 videos is all in the same folder, it is more recommended to use "Import Files from Folder," as this can import the videos from the folder into the task list more quickly.
The screenshot shows that 6 MP4 files have been imported. The list displays sequence number, name, path, extension, creation time, modification time, and an operation column. The file names include Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, Video test 30.mp4, Video test 32.mp4, Video test 33.mp4, and the extensions are all mp4. The summary at the bottom shows a record count of 6, indicating that these 6 videos have entered the pending queue.
The expected result of this step is: all videos that need to have their images removed appear in the list. If you find you have imported files that don't need processing, you can remove the corresponding records using the delete button in the operation column; if the import order does not affect the result, no special adjustment is needed.
Step Three: Confirm the file list to avoid omissions or incorrect selections
Batch processing is highly efficient, but this also means that selecting the wrong files could affect multiple files simultaneously. Therefore, before clicking the next step, it is recommended to check three things: whether the file names are correct, whether the paths belong to the target folder, and whether the extensions are the video formats that need processing.
From the screenshot, you can see that the file paths are all located in the same test folder, and the extension is mp4. This means the current list is relatively uniform and suitable for one-time batch processing. For real files in an office scenario, it is recommended to first gather the videos to be processed into a single folder, then import them via "Import Files from Folder," which reduces the chance of omission.
Step Four: Click "Next" and set the save location
After confirming the file list is correct, click the "Next" button at the bottom of the interface. The workflow at the top of the interface shows three stages: Select records to process, Set save location, and Start processing. The current screenshot is at step 1, and clicking "Next" will lead to the save location setting stage.
The purpose of setting the save location is to specify where the processed files will be output. To avoid overwriting the original files or causing file confusion, it is recommended to set the output location to a separate new folder, for example, "Videos with Image Deleted" or "Audio-Only Output." This way, pre- and post-processing files can be clearly distinguished, and subsequent checking is more convenient.
Step Five: Start processing and wait for the software to complete the batch
After setting the save location, enter the "Start processing" stage. At this point, start executing the task according to the on-screen prompts. The software will process the multiple videos in the list one by one, deleting the image from the videos while preserving the audio. Compared to manually opening editing software and exporting each file individually, the advantage of batch processing is one-time configuration and continuous multi-file execution, suitable for repetitive tasks involving dozens or hundreds of videos.
After processing is complete, go to the output folder and open the result files for spot-checking. Under normal circumstances, the video playback will no longer display the original image, while the audio can still be played. You can prioritize checking the first, middle, and last file in the list to confirm that the processing effect is consistent across the entire batch.
Common Questions and Notes
1. Why is the processed file still a video file, not an MP3 audio file?
The core of "Delete Image from Video" is to remove the video picture and keep the audio. The processed file typically plays back as a black screen with audio. It solves the problem of deleting the video image, and is not equivalent to converting a video into MP3. If your goal is to get a pure audio format like MP3, AAC, or OGG, you should choose the corresponding audio extraction or format conversion function in the software, not this one.
2. Will audio be kept for all videos?
The prerequisite is that the original video itself contains an audio track. If some videos had no audio originally, no audio will be generated after deleting the image. Therefore, before batch processing, you can spot-check one or two source files to confirm that the videos do indeed have audio content.
3. Can I import many files at once?
The value of this tool lies in batch processing files. For a large number of videos, it's recommended to first organize them into the same folder and then use "Import Files from Folder." This is more efficient than adding them one by one and is more suitable for batch archiving tasks in an office setting.
4. Should I back up the original videos before processing?
It is recommended to keep a backup of the original videos and set the output directory to a new folder. Although batch processing can significantly improve efficiency, the original files often have retention value, and a backup can prevent losses caused by accidental operations.
5. How can I confirm the processing was successful?
You can check from two aspects: first, see if the thumbnail or player screen has turned black or become imageless; second, play the file to confirm the audio is still present. The post-processing effect in the screenshot is the typical state: the image area is black, but the player can still play through the progress.
Summary: Using batch processing to reduce repetitive editing tasks
If you are only processing one video, manually deleting the image with editing software is doable; but when the number of videos increases, the repetitive import, edit, and export steps will consume a lot of time. As office software, HeSoft Doc Batch Tool is better suited for this kind of standardized, repetitive file processing task. Through the "Delete Image from Video" function in "Video Tool," you can add multiple MP4 videos to a list at once, uniformly delete the image, and keep only the audio.
For scenarios like meeting recordings, training materials, interview footage, and privacy processing, this batch operation can significantly reduce manual steps and improve file organization efficiency. It is recommended to prepare the folder of files to be processed first, check the list after import, set a separate output location, and then start the batch processing. This ensures that the results are clear and controllable, and allows the task of removing images from a large number of videos while preserving audio to be completed more efficiently.