Different ways to extract Audio from Video or convert Video into Audio

You can convert an MP4 or any other type video file into an MP3 or other format audio file  using various methods, including software applications and online converters. Here are given three options:

Using VLC Media Player

1. Open VLC: Download and install VLC Media Player if you don't have it.
2. Go to Media: Click on Media in the top menu and select Convert / Save.
3. Add MP4 File: Click on Add and select the MP4 file you want to convert.
4. Click Convert / Save: After adding the file, click the Convert / Save button.
5. Select Profile: In the profile dropdown, choose Audio - MP3.
6. Choose Destination: Select a destination file by clicking Browse, then enter the desired file name with the .mp3 extension.
7. Start Conversion: Click Start to begin the conversion process.

Using FFmpeg (Command Line)

If you're comfortable using the command line, you can use FFmpeg:

1. Install FFmpeg: Download and install FFmpeg from the official website.
2. Open Command Prompt/Terminal: Navigate to the folder containing your MP4 file.
3. Run the Command: Use the following command to convert the file:

ffmpeg -i input.mp4 -q:a 0 -map a output.mp3

Replace input.mp4 with the name of your MP4 file and output.mp3 with the desired MP3 file name.

Explained: ffmpeg -i input.mp4 -q:a 0 -map a output.mp3

The command ffmpeg -i input.mp4 -q:a 0 -map a output.mp3 is used to extract the audio from a video file (e.g., input.mp4) and save it as an MP3 file (output.mp3). Here’s a detailed breakdown of each part of the command:

1. ffmpeg

This is the command-line tool used for processing multimedia files. FFmpeg can convert between different formats, extract audio, merge files, and more.

2. -i input.mp4

The -i flag specifies the input file. In this case, input.mp4 is the file from which you want to extract the audio.

3. -q:a 0

This option controls the quality of the audio output:

• -q:a refers to the audio quality setting.
• The value 0 represents the highest audio quality available for MP3. Lower numbers (closer to 0) provide better quality, while higher numbers provide lower quality but smaller file sizes.

Note: The -q:a option is specific to codecs that support variable bitrates (VBR), such as MP3. If you wanted to specify a constant bitrate (CBR), you would use -b:a instead (e.g., -b:a 192k for 192 kbps).

4. -map a

This option tells FFmpeg which streams to include in the output:

• -map allows you to select specific streams from the input file (e.g., audio, video, subtitles).
• a refers to the audio stream. In this case, you're telling FFmpeg to only include the audio stream in the output file and ignore the video stream.

5. output.mp3

This is the name of the output file. The extracted audio will be saved as output.mp3. You can change this to any name and format supported by FFmpeg, but in this case, MP3 is specified.

Summary

• ffmpeg: The tool used for processing multimedia files.
• -i input.mp4: Specifies the input file (input.mp4).
• -q 0: Sets the audio quality for MP3 output (0 = highest quality).

• -map a: Selects the audio stream from the input file.
• output.mp3: The name of the output audio file.

This command is extracting only the audio from input.mp4 and saving it as a high-quality MP3 file called output.mp3.

VSDC Video Editor

Yes, you can export audio from your project in VSDC Video Editor as a separate audio file. Here’s how you can do it:

Steps to Export Audio from VSDC

1. Open Your Project: Launch VSDC Video Editor and open the project from which you want to export audio.
2. Select the Audio Track: Make sure the audio you want to export is selected in the timeline. If you have multiple audio tracks, ensure you choose the correct one.
3. Go to the Export Tab: Click on the Export Project tab at the top of the interface.
4. Choose Audio Format:
• In the export settings, look for the Audio section.
• Select the desired audio format for your export (e.g., MP3, WAV, etc.).
5. Configure Audio Settings: You may have options to configure the audio bitrate, sample rate, and other settings based on your chosen format.
6. Set Destination: Choose the destination folder where you want to save the exported audio file. You can do this by clicking the folder icon next to the output path field.
7. Export: Click on the Export Project button (usually found at the bottom of the export settings window) to begin the export process.
8. Wait for Completion: Once the export is complete, you can find your audio file in the specified location.

This method allows you to save the audio from your video project separately, making it easy to use in other applications or share as needed.