This article explains how to use HeSoft Doc Batch Tool to batch delete the image frames from multiple video files, retaining only the original audio. It is ideal for scenarios where only audio content is needed, such as meeting recordings, course screen recordings, interview footage, and surveillance clips. The article combines before-and-after effect images and software operation screenshots to illustrate the complete workflow, from entering the video tool, selecting "Delete Video Images," adding files or importing folders, to proceeding to the next step of setting the save location and starting the process, helping users reduce repetitive operations and improve batch processing efficiency.
In daily office work and data organization, many video files do not necessarily need to retain their visuals. For example, meeting recordings where you only want to keep the speech content, course screen recordings where only the narration is needed, interview materials that need to be converted into audio-type videos for easy listening, or videos containing private, copyrighted, or sensitive visual information where you only want to keep the audio for internal archiving. Opening video editing software one by one to manually black out the screen and export files is not only time-consuming but also prone to omission. This article addresses exactly this problem: how to batch remove visuals from numerous video files, keeping only the audio.
The tool used here is HeSoft Doc Batch Tool . From the interface, you can see it is a batch processing software geared towards office scenarios, with categories on the left including File Name, Folder Name, File Organization, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, Video Tools, Audio Tools, etc. For users who need to process multiple mp4 videos at once, batch-remove video images, and retain audio content, directly using the video tools can significantly reduce repetitive work.
Applicable Scenarios: When Do You Need to Batch Delete Images from Videos
Batch deleting video images while keeping only the audio is not a simple format conversion. It involves removing the visual image from the video, making the screen black or have no effective image during playback, while preserving the original video's audio content. This type of processing is very common in office work, teaching, and data archiving.
1. Meeting Recording Archiving: Internal company meetings and online meeting recordings often contain shared screens, participant avatars, or chat windows. If you only need to review the spoken content later, keeping the audio is sufficient, and deleting the visuals can also reduce the risk of image information leakage.
2. Course Recording Organization: For some training courses, lectures, and open class recordings, users may only want to listen to the content during commutes or background playback. After batch-deleting the video images, the files can still be opened with a player, with the primary focus on the audio during playback.
3. Interview and Oral History Material Processing: Materials like interview videos, oral histories, and phone interview recordings focus on sound and text transcription. Batch processing multiple videos into an audio-only format facilitates subsequent dictation, transcription, and archiving.
4. Privacy Image Desensitization: If a video contains images like faces, environments, documents, or screen content that are inconvenient to disclose, but the audio can be kept, desensitization at the visual level can be achieved by deleting the images from the video.
5. Unified Processing of Large Amounts of Material: When there are dozens or even hundreds of mp4 videos in a folder, manually processing them one by one is almost impossible. The value of a batch processing tool lies in importing multiple files at once and executing tasks uniformly, reducing repetitive clicks and waiting.
Result Preview: Before Processing, Videos Have Normal Visuals
Before processing, multiple video files in the folder all have visible thumbnails. Opening one of the videos shows a normal picture. For example, the example files Video test 22.mp4, Video test 23.mp4, Video test 24.mp4, etc., display thumbnails with different video content, and the player window normally shows an image of golden confetti flying. This indicates that the original video contains both visual image and audio.
If the user only needs the audio, keeping these visuals might actually cause several problems: first, the visual content can be distracting; second, video thumbnails might expose material information; third, opening, editing, and exporting files one by one is very inefficient. Therefore, using the batch-delete images from videos function can uniformly process such videos into audio-only results.
Result Preview: After Processing, Video Screen Turns Black but Audio is Preserved
After processing is complete, you can see from the result image that the thumbnails of multiple mp4 videos have all turned into black screens. Opening a processed video file shows a black screen in the player, but the progress bar, playback controls, volume button, etc., are still present, indicating the file is still a playable video file. The core characteristic of this processing result is: deleting the visual image from the video, keeping only the audio.
This result is suitable for scenarios where the file needs to continue to be saved as a video file, but visuals are not desired. For instance, if the original system or player still requires mp4 files, or if the archiving workflow prefers not to change the file type too much, removing the image and keeping the audio is a relatively direct processing method.
Operation Step 1: Enter Video Tools and Select 'Delete Images from Video'
After opening HeSoft Doc Batch Tool , select 'Video Tools' in the category list on the left. After entering the Video Tools list, you can see multiple functions related to batch video processing, such as separating images and audio from video, deleting audio from video, deleting images from video, adding watermarks to video, converting video to MP4, converting video to AVI, converting video to MKV, converting video to MOV, etc.
What we want to achieve this time is batch-deleting visuals from videos and keeping only the audio, so we need to select the third item, 'Delete Images from Video'. The description on this function card in the screenshot is "batch delete image visuals from video, keep only audio," which exactly matches our requirement.
The purpose of this step is to clearly tell the software what type of processing to execute. Do not mistakenly choose 'Delete Audio from Video', as that function removes sound and keeps the visuals; also, do not choose 'Separate Images and Audio from Video', as separation leans more towards splitting the visuals and audio into separate outputs. Only 'Delete Images from Video' is the function that makes the video no longer display its original visuals during playback while preserving the audio content.
Operation Step 2: Add the Video Files to Be Processed
After entering the 'Delete Images from Video' function, the top part of the interface provides two buttons: 'Add Files' and 'Import Files from Folder'. Users can choose the import method based on the number of files and how they are stored.
If processing only a small number of videos: You can click 'Add Files' and select the mp4/video files to process from your computer. This is suitable for scattered, small-quantity cases.
If processing a large number of videos from a folder: You can click 'Import Files from Folder' to let the software batch-read video files from that folder. For dozens of meeting recordings, course screen recordings, or material clips, this method saves more time.
After importing, the files will appear in the list. In the screenshot, you can see 6 records have been imported, with filenames 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. The list also shows information like path, extension, creation time, and modification time, making it convenient for users to verify if the correct files were imported.
The expected result of this step is: all videos requiring batch image removal and audio retention have appeared in the processing list. If you find any files that shouldn't be processed, you can use the delete icon in each row's actions column to remove them; if the list was imported incorrectly, you can also use the 'Clear' button based on the interface prompts to re-add files.
Operation Step 3: Verify the File List to Avoid Processing Errors
The most crucial aspect of batch processing is to verify before executing. Because this function uniformly deletes image visuals from multiple videos, once a video that shouldn't be processed is added to the task, you'll need to find the original file to recover it later, wasting time instead.
In the file list, it's recommended to check the following key points:
1. File Name: Confirm that the files in the list are the ones you plan to process. For example, the filenames in the screenshot all start with "Video test" and have the extension mp4, indicating the current task mainly processes mp4 videos.
2. File Path: The path column helps confirm the file source. In the example, the path is located under C:\Users\Administrator\Desktop\Test folder 4\, indicating these videos come from the same test folder. In actual office work, you can judge from the path whether you imported files from the correct project folder.
3. Extension: The extension column shows mp4. If your files include other video formats, you should also check after importing if they are correctly recognized.
4. Record Count: The bottom shows "Record count 6," meaning 6 videos will be processed. Before starting the batch task, the record count should match the expected number.
5. Sorting and Filtering: The interface provides Sort and Filter buttons. For cases with a large number of files, you can use these entries to check the list and reduce missed or incorrect selections.
After completing the verification, click the 'Next' button at the bottom. The purpose of 'Next' is to proceed to the save location setup and subsequent processing flow.
Operation Step 4: Set Save Location and Start Processing
From the interface progress bar, you can see this function is divided into three stages: Select records to process, Set save location, and Start processing. The current screenshot is on the 1st step; after importing and confirming files, clicking 'Next' leads to settings related to the save location.
As the screenshot clearly shows the 'Set save location' stage, it is recommended that users choose an easily identifiable output directory in this step, such as creating a new "Processed" folder, to avoid mixing with the original videos. This has two benefits: one is to keep the original files as a backup, and the other is to facilitate quick comparison of results after processing.
After setting the save location, follow the software wizard to enter the 'Start processing' stage. The software will uniformly execute the task of deleting image visuals for the multiple videos in the list. After processing is complete, users can go to the output directory to check the results. Open any one of the videos for a spot check: if the player screen is black or no longer shows the original image, while the audio can still be heard, the processing was successful.
It's important to note here that this article explains based on the functional flow visible in the screenshots, without assuming other complex parameters. In actual operation, follow the prompts of the current software version's interface.
Frequently Asked Questions and Notes
1. Is deleting images from a video the same as converting to MP3?
No. Deleting images from a video means the video file no longer displays the original visuals but may still maintain a video file form; converting to MP3 is transforming the video into an audio format. You can also see the 'Video to MP3' function in the video tools screenshot, but the requirement demonstrated in this article is to remove visuals and keep the audio, hence 'Delete Images from Video' was chosen.
2. Why does the player still open a video window after processing?
Because the processed file is still a video file, just with the image visual deleted or turned into a black screen. The player will still display the playback window, progress bar, volume control, etc., which is normal. To determine success, focus on whether the original visual has disappeared and whether the audio is still present.
3. Can you process multiple mp4 files at once?
Yes. As seen in the screenshot, 6 mp4 files were imported into the list at once, and the function's description clearly states "batch delete image visuals from video, keep only audio." For a large number of mp4 files, using 'Import Files from Folder' is recommended for higher efficiency.
4. Is it recommended to overwrite the original files?
It is not recommended to overwrite them directly. Before batch processing, it's best to keep the original videos and save the processed files to a separate folder. This way, even if you later find a video shouldn't have been processed, you can redo the operation from the original file.
5. Do I need to playback and check before processing?
If the number of files is small, it's recommended to spot-check a few videos to confirm they indeed contain the audio you need to preserve. If the number of files is very large, at least spot-check a few samples from the beginning, middle, and end to avoid importing silent files or incorrect materials.
Summary
Batch-deleting visuals from many video files, keeping only the audio, is essentially removing visual information while preserving the value of the audio. For meeting recordings, course screen recordings, interview materials, privacy desensitization, and batch archiving, this is a very practical office processing need.
Using HeSoft Doc Batch Tool , you can accomplish this task through the 'Delete Images from Video' function in the Video Tools. The overall flow is very clear: enter Video Tools, select 'Delete Images from Video', add files or import from a folder, verify the list, click 'Next' to set the save location, and then start batch processing. Compared to manually opening video editing software one file at a time, batch processing can significantly reduce repetitive clicks and waiting time.
If you have a batch of mp4 videos on your computer that need their visuals removed and only audio kept, it's recommended to first gather the original files into one folder, then follow the steps in this article to import and process them. After processing, spot-check a few output files to confirm the visuals have turned black and the audio is normal, and they can then be used for subsequent archiving, sharing, or dictation organization.