If you need to extract audio from a batch of MP4 videos while keeping silent video files, you can use HeSoft Doc Batch Tool to complete batch audio-video separation. From the perspective of batch processing office files, this article explains applicable scenarios, effects before and after processing, and specific operation procedures: select "separate video and audio" in the video tool, batch add videos or import from a folder, choose audio formats such as mp3, aac, opus, ogg, set the save location, and start processing. It is suitable for high-frequency repetitive tasks such as short video material organization, course audio extraction, and meeting recording archiving.
Many users find that when processing video materials, the real time-consuming part is not a single complex operation, but repeating the same operation many times. For example, a project folder contains multiple MP4 videos, and you need to extract the audio from each video while also obtaining the corresponding silent video files. Using a regular editing software to process them one by one requires repeatedly importing, separating audio tracks, exporting audio, exporting video, and naming files. As the number of videos increases, efficiency drops noticeably, and problems like missing a file or mismatching audio with video are prone to occur.
This tutorial introduces an approach more suitable for office scenarios: using HeSoft Doc Batch Tool to separate audio and video from multiple files in one batch. Based on its interface, the software belongs to the category of document and file batch processing office tools. In addition to video tools, it also includes tool categories for Word, Excel, PowerPoint, PDF, images, audio, and more. Its core value is batching repetitive file processing tasks, making it suitable for users who want to quickly complete a large number of file operations.
This article will use screenshots to explain: what the videos look like before processing, what results you get after processing, and how to follow the software interface step by step to complete the batch separation of video image and sound.
Applicable Scenarios: Typical Needs for Batch Audio Extraction and Silent Video Preservation
Separating audio and video is common in content production and office material management. For short-video teams, raw footage might contain ambient sound, background music, or live dialogue, but post-production often requires re-dubbing or re-scoring. You can first separate the footage in batches to get silent videos as visual material, while saving the original audio files separately for comparison, editing, or archiving.
For educational and training institutions, course videos are usually long and numerous. Operations staff may need to extract course audio into mp3 format for students to review or upload to audio learning platforms. Meanwhile, the original course visuals still need to be kept for later video editing, subtitle proofreading, or course archiving. Batch separation of video image and sound makes course material organization more standardized.
For administrative, legal, marketing, and other office departments, meeting recordings, interview records, and live stream replays also often need to be split. Audio files can be used for speech-to-text conversion, minute organization, and content search; video files can serve as visual archives. Splitting videos into separate audio and silent video files allows files for different purposes to be independent, making subsequent processing more flexible.
For individual users, travel videos, life records, and filmed footage might also need their sound separated. For instance, you might want to keep only the scenic visuals, or save the natural sounds from a video as a separate file. As long as the number of files is large, using a batch processing tool saves more time than manual handling.
Result Preview: From Multiple MP4s to Same-named Folders Containing Audio and Video
In the screenshot before processing, you can see a folder containing several MP4 video files, including 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. Such files typically originate from the same material directory or project directory, with a certain pattern in their filenames, making them highly suitable for batch import processing.
If you process these files manually, you need to separate the audio and video for each MP4 individually. Although the screenshot shows only 6 files, in real office scenarios, similar tasks might involve 60, 100, or even more files. The significance of batch processing lies in setting up the rule once, and the software executes it sequentially based on the record list.
The post-processing screenshot shows the output structure. You can see that a folder with the same name is generated for each original video, for example, Video test 19. Opening this folder reveals that it contains Video test 19.mp3 and Video test 19.mp4. According to the function description, the mp3 file is the audio extracted from the original video, and the mp4 file is the resulting silent video. This way, one folder corresponds to one video source, ensuring the audio and visuals are not mixed up, which facilitates subsequent checking and use.
This output method is especially friendly for batch tasks. If you are processing a batch of course videos, each lesson gets its own independent folder after processing, with both audio and video saved inside. If you are handling short video materials, post-production staff can quickly find the corresponding original sound and silent visuals by the material name.
Operating Steps: Following Screenshots for Batch MP4 Audio-Video Separation
Below are the specific operations. It is recommended to organize the original videos before starting. Place the files that need processing in a separate folder, and confirm that the files can play normally. This makes importing clearer and facilitates result verification after processing.
Step One: Open Video Tools and Enter the Audio-Video Separation Function
After launching HeSoft Doc Batch Tool , locate "Video Tools" in the left-side menu. Upon entering, the main area will display multiple video batch processing functions. Marked in the screenshot is the first option, "Separate Video Image and Sound," with the description "Batch separate video files into silent video and audio files."
It's important to distinguish this from similar functions. The list also shows "Delete Sound from Video" and "Delete Image from Video". If your goal is only to remove sound, you can use the delete sound option; if you only want to keep the sound, you can use the delete image option. However, this article's need is to obtain both a silent video file and an audio file simultaneously, so you should select "Separate Video Image and Sound". After selecting the correct function, the software will enter the corresponding task wizard page.
Step Two: Import the Multiple Videos to Be Processed
After entering the function page, the top displays "Separate Video Image and Sound," and the progress bar below shows 4 stages: Select Records to Process, Set Processing Options, Set Save Location, Start Processing. You are currently at Step 1 and need to add the videos to be processed.
The top right of the interface has two entry points: "Add Files" and "Import Files from Folder". These suit different situations: if you only want to pick a few videos from different locations, use "Add Files"; if all the videos are already gathered in one folder, it is more recommended to use "Import Files from Folder," as this can import the entire batch of materials at once, aligning with the batch processing approach.
After importing, the files appear in the table. The screenshot shows columns for sequence number, name, path, extension, creation time, modification time, and actions. You can confirm the files are correct by checking their names and paths. For instance, the 6 records in the list all have the extension mp4, and their paths point to the same test folder. The summary area at the bottom shows "Record count: 6," indicating that the current batch task will process 6 videos.
If any videos appear in the list that do not need processing, you can remove them using the delete icon in the actions column. After confirming the records are correct, click "Next" at the bottom of the page to proceed to setting processing options.
Step Three: Set the Output Audio Format
The second step is setting processing options. The screenshot shows the page provides an "Audio Format" selection, with options including mp3, aac, opus, and ogg. The currently selected format is mp3.
Different formats suit different purposes. mp3 is a common audio format with good compatibility, suitable for office playback, file archiving, voice transcription, and sharing. If the subsequent platform or system requires aac, opus, or ogg, you can select the corresponding format here. For most users, if unsure what to choose, selecting mp3 is usually more convenient.
The purpose of this step is clear: tell the software which audio file format to export the sound from each video to. Using the screenshot settings as an example, after processing, the sound corresponding to Video test 19.mp4 will be output as Video test 19.mp3. Once set, continue by clicking "Next".
Step Four: Set Save Location and Execute Batch Processing
According to the progress bar, after completing the audio format settings, you will enter "Set Save Location". The screenshot does not show the specific controls for this page, so during operation, simply follow the software interface prompts to select the result save directory. For easier management, it is recommended not to scatter the output results directly on the desktop or in the original material directory. Instead, create a specific new output folder, for example, to store the results of this audio-video separation.
After confirming the save location, enter the "Start Processing" stage and execute the task as prompted by the interface. The software will process all videos sequentially based on the previously imported record list. During processing, the user does not need to open files one by one or repeatedly select the output format. Once processing is complete, go to the output location to check the results.
According to the post-processing screenshot, the results are organized by the original video names. Each folder with the same name contains the separated audio file and video file. For example, the Video test 19 folder contains Video test 19.mp3 and Video test 19.mp4. When checking, you can randomly open a few folders to confirm that the audio plays normally and the video visuals meet expectations.
Frequently Asked Questions and Notes
1. Do I need to back up the original files before batch separating video and audio?Backup is recommended. Although judging from the effect screenshots, the software generates new result folders and files rather than directly showing operations that overwrite original files, it is always advisable to keep an original backup of important materials, especially client videos, meeting recordings, and course masters.
2. Why is importing from a folder recommended?When dealing with a large number of videos, importing from a folder aligns better with the batch processing logic. It reduces the time spent on manual multi-selection and lowers the probability of missing files. Gathering the videos that need to be split into a single folder before processing is a simple way to improve efficiency.
3. After selecting mp3, will the video files also become mp3?No. The "Audio Format" in the screenshot refers to the format of the separated audio file. After processing, you will still get video image files, along with the corresponding audio files. The result image shows a situation where both same-named mp3 and mp4 files exist simultaneously.
4. How do the output filenames correspond to the original videos?From the post-processing screenshot, you can see that the software generates folders and files based on the original video name, for example, Video test 19 corresponds to Video test 19.mp3 and Video test 19.mp4. This naming convention facilitates source verification and is suitable for batch archiving.
5. How to avoid chaos when processing a large number of videos?A three-step management approach is recommended: First, create a "Original Videos" folder before processing. Second, select a separate output directory for processing. Third, spot-check a few result folders after processing to confirm the audio format, video visuals, and filenames meet expectations. This keeps things clear even when processing many files.
Summary: Hand Repetitive Video Audio-Video Separation Tasks to a Batch Processing Tool
The key to extracting sound from multiple videos with one click while keeping their silent visuals lies in choosing a tool suitable for batch tasks. HeSoft Doc Batch Tool breaks this process down into a clear wizard: enter Video Tools, select "Separate Video Image and Sound", add files or import files from a folder, set the audio format, set the save location, and start processing. For office scenarios involving many MP4 videos, this method is more direct and less error-prone than exporting them one by one using editing software.
If you are organizing courses, meeting recordings, interview videos, short video materials, or other large collections of MP4 files, you can test the process with a small number of files first. Confirm that the output mp3, aac, opus, or ogg audio meets your needs, then import the entire batch of files for processing. Through batch processing, the originally repetitive and time-consuming work of video audio-video separation can become an efficient task of setting once and executing uniformly.