Facing a large number of MP4 videos, if only the audio content is needed, manual editing can be very inefficient. This article introduces how to use HeSoft Doc Batch Tool , select "Remove video image" in the video tool, batch import video files and process them uniformly, so that the original picture is no longer displayed during video playback while preserving the audio. The tutorial combines before-and-after effect images with the software operation interface, suitable for office scenarios such as meeting recordings, course materials, interview footage, and privacy desensitization.
Many people find a typical pain point when organizing video materials: there are many videos, but the visuals are not necessarily the content that must be kept; the real value lies in the audio. For example, a batch of meeting recordings only needs the discussion process to be listened to, a batch of course videos only needs the lecture audio to be kept, and a batch of interview materials only needs the respondents' answers to be saved. If each file is opened with editing software and the visuals are manually removed, it is not only complicated to operate but also easy to miss files.
For such highly repetitive tasks involving a large number of files, it is more suitable to use batch processing tools in office software. HeSoft Doc Batch Tool provides batch features for video files, among which "Delete images from video" can batch delete video visuals, keeping only the audio. This article will focus on the need to remove visuals and keep audio from multiple videos with one click, explaining the applicable scenarios, processing effects, and specific operational steps.
Applicable Scenarios: Multiple Videos Where Only Audio, Not Visuals, Is Needed
"Removing video visuals and keeping audio" is not traditional video editing creation, but rather office document processing. It is particularly suitable for batch file organization scenarios.
In meeting material organization, the video visuals might just be the attendance interface, avatars, or shared screens. During later review, only the spoken content needs to be heard. Deleting the visuals makes the material more concise and also reduces the risk of visual information leakage.
In training and course archiving, much of the content is primarily lecture audio. If learners only need to listen to the teacher's explanation, or if video materials need to be organized into audio materials suitable for background playback, the visuals can be removed in batches.
In interviews, recording transcription, and dictation material organization, the video images are often not the focus; the audio is the core for subsequent transcription, review, and archiving. After batch deletion of visuals, the purpose of the files becomes clearer.
In privacy protection scenarios, if faces, environments, screen content, customer data, or internal information appear in the video, but the audio can still be used, deleting the video image and keeping only the sound is a practical desensitization method.
Effect Preview: From Video with Visuals to Black Screen Audio
Before processing, multiple MP4 files in the folder all have video thumbnails. In the screenshot, visuals of various contents can be seen, including gold fragments, animals, the sea surface, swans, buildings, and islands. When a video is selected, the player will display the video visuals normally.
This indicates that the original files are complete video files with both images and sound. For office needs where only audio is required, these visuals might increase file management burdens and even contain information that is not intended to be displayed further.
After processing, the video file thumbnails uniformly turn black. When a file is opened for playback, the player's visual area no longer displays the original image but shows a black screen; at the same time, controls like the player's progress bar and volume control are still available, indicating that the file can still play audio.
Therefore, the processing result can be understood as: the original video's image visuals have been deleted, the original visuals are no longer seen during playback, and the audio content is preserved. For people who need to listen to the audio, protect visual information, or organize materials, this effect is very direct.
Operational Steps: Batch Deleting Image Visuals from Videos
The following uses HeSoft Doc Batch Tool as an example, explained according to the actual function entries in the software interface. During operation, pay attention to two screenshots: one is the function selection interface, and the other is the file import list interface.
Step 1: Open the software and enter "Video Tools"
After launching HeSoft Doc Batch Tool , multiple categories can be seen in the left menu bar, such as Home, Task Flow, All Tools, File Name, Folder Name, File Organization, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, Video Tools, Audio Tools, and More Tools.
Because the objects for processing this time are video files, you need to click "Video Tools" on the left. After entering, the main interface will display multiple video batch processing function cards.
The purpose of this step is to switch the software to the video file processing area. HeSoft Doc Batch Tool is office software, and its functions cover various types of file processing, but only by entering the corresponding category can you find the function suitable for the current task.
Step 2: Select the "Delete images from video" function
In the video tools list, find "3. Delete images from video". The description below this function is "Batch delete image visuals from videos, keeping only the sound". This sentence clearly states the function's result: process multiple video files, delete the visual part, and retain the audio part.
After selecting this function, the software will enter a dedicated processing page. Do not mistakenly select "Delete audio from video", because that serves the opposite need: removing sound and keeping visuals. Also, do not confuse it with "Separate video and audio", which is typically used to split the visual and audio apart, whereas the goal of this article is to ensure the video file no longer retains the original visuals.
Step 3: Add videos via "Add Files" or "Import Files from Folder"
After entering the "Delete images from video" page, two main import buttons can be seen at the top: "Add Files" and "Import Files from Folder". If you are only processing a few scattered videos, you can use "Add Files"; if the videos are all in the same directory, using "Import Files from Folder" is more efficient.
In the screenshot, a batch of videos has already been imported, with 6 records listed, all with the mp4 extension. Each record displays the name, path, extension, creation time, and modification time, making it convenient for users to check. This list is the processing queue, and the software will execute the batch delete image operation according to the records in the list later.
For batch tasks, it is recommended to use the folder import method as much as possible. Because files in office scenarios are usually stored in folders by project, date, or material type, importing an entire folder at once can save the time of selecting files one by one.
Step 4: Check the records to be processed and confirm no mistaken imports
The most important preliminary action for batch processing is to verify the list. At the bottom of the screenshot, "Record Count: 6" is displayed, indicating that a total of 6 videos are currently ready for processing. You can judge whether they are the target files based on the file names and paths. If a record does not need processing, you can use the delete button in the action column to remove it from the list.
When checking, it is recommended to focus on three points: first, whether the file name is the video that needs processing; second, whether the path comes from the correct folder; third, whether the extension matches this task. The file extensions in the screenshot are mp4, making them very suitable as an example for batch MP4 visual removal.
Step 5: Go to the next step and set the save location
After confirming the file list, click "Next" at the bottom of the page. The process display at the top of the interface shows that the current task involves three stages: "Select records to process", "Set save location", and "Start processing". After clicking Next, it will enter the save location settings.
When setting the save location, it is recommended not to mix it directly with the original files. A safer approach is to create a new output folder, such as "Video Visual Removal Results", "Audio Only Videos", or "Black Screen Audio Videos". This way, after processing is complete, the source files and result files are clearly separated, facilitating checking and comparison.
Step 6: Start processing, and review the results after completion
Once the save location is confirmed, enter the start processing stage. The software will batch process multiple video files in the list. Since the task applies a uniform rule, users do not need to repeat settings for each video. After processing is complete, open the output directory and check the generated files.
It is recommended to check at least three files: one at the beginning of the list, one in the middle, and one at the end. During playback, if the original visuals are not seen but the audio can still be heard, it indicates that the batch delete video image operation has achieved the expected effect.
Common Questions and Notes
1. After deleting the images, will the video have no sound?
Normally, the goal of this function is to only delete the image visuals and keep the audio. However, the premise is that the original video itself has an audio track. If the original video was a silent file, it will naturally not have sound after processing.
2. Is it normal to see a black screen after processing?
Yes, it is normal. In the screenshots after processing, the thumbnails and player area are displayed as black because the original visuals have been deleted. As long as the sound is still present during playback, it meets the purpose of "removing visuals and keeping audio".
3. Is this function suitable for converting video to MP3?
Not exactly equivalent. What is used in this article is "Delete images from video", focusing on making the video no longer display visuals and retaining the audio. If your ultimate need is an MP3 audio file, you should choose the dedicated video-to-audio conversion or video-to-MP3 functions. The video tools list in the screenshot also shows related functions like "Video to MP3", but those are different types of tasks.
4. Do I need to organize files before bulk processing?
It is recommended. Placing the videos to be processed into the same folder and then importing them using "Import Files from Folder" can significantly reduce instances of missed or mistaken selections. This is also a very important habit for batch file processing.
5. Is it recommended to keep the original files?
Yes, it is recommended. After the video visuals are deleted, the original visual information no longer appears in the resulting file. If the original video might be needed later, it is best to back it up before processing or save the output files to a new directory.
Summary: Leave Repetitive Video Processing to Batch Office Tools
Removing visuals and keeping sound from multiple videos may seem like a video editing issue, but it is actually more common in batch office document processing. Using traditional editing software to operate on dozens of MP4 files one by one is very inefficient; whereas using HeSoft Doc Batch Tool , you only need to enter Video Tools, select "Delete images from video", import the file list, set the save location, and start processing to complete the image deletion for multiple videos at once.
This method is suitable for scenarios such as meeting recordings, training courses, interview materials, privacy desensitization, and audio material organization. It is recommended that you organize the source files beforehand, check the list carefully after importing, and set a separate save folder for the output. This ensures controllable processing results and fully leverages the efficiency advantages of office software for batch file processing.