How to Add Audio Every x Time [FFmpeg]

Adding audio every x time in a video can be useful for a variety of purposes, such as adding background music or inserting audio cues at specific intervals. In this article, we will explore how to achieve this using FFmpeg, a powerful command-line tool for manipulating multimedia files.

Step 1: Install FFmpeg

Before we begin, make sure you have FFmpeg installed on your computer. If you haven't installed it yet, you can download it from the official FFmpeg website and follow the installation instructions for your operating system.

Step 2: Prepare Your Audio and Video Files

Next, you need to have the audio and video files ready. Make sure the audio file you want to add is in a compatible format, such as MP3 or WAV. Also, ensure that the video file you want to modify is in a format supported by FFmpeg.

Step 3: Open Command Prompt (Windows) or Terminal (Mac/Linux)

To use FFmpeg, you need to open a command-line interface. On Windows, you can open Command Prompt by pressing the Windows key + R, typing "cmd," and hitting Enter. On Mac and Linux, you can open Terminal from the Applications folder or using the search function.

Step 4: Navigate to the FFmpeg Directory

Once you have the command-line interface open, navigate to the directory where FFmpeg is installed. For example, if FFmpeg is installed in the "C:\ffmpeg" directory on Windows, you can navigate to it by typing the following command:

Step 5: Add Audio to Video

Now, it's time to add the audio to the video file. Use the following command as a template:

Let's break down the command:

• -i input_video.mp4: Specifies the input video file.
• -i input_audio.mp3: Specifies the input audio file.
• -filter_complex "[0:a][1:a]amix=inputs=2:duration=first:dropout_transition=3": Uses the amix filter to mix the audio streams from the video and audio files. Adjust the values as needed.
• output_video.mp4: Specifies the output video file with the added audio.

Step 6: Wait for the Process to Complete

After executing the command, FFmpeg will start processing the files and adding the audio to the video. The time it takes depends on the size and complexity of the files. Once the process is complete, you will see the command prompt or terminal ready for the next command.

Congratulations! You have successfully added audio every x time using FFmpeg. Now you can enjoy your modified video with the added audio.