How to extract audio from YouTube video on pc?

Extracting Audio from YouTube Videos on PC: A Step-by-Step Guide

Introduction

Extracting audio from YouTube videos on a PC can be a useful skill for various purposes, such as creating music, editing videos, or even using YouTube as a tool for research. However, extracting audio from YouTube videos can be a challenging task, especially if the video is not in a format that supports audio extraction. In this article, we will provide a step-by-step guide on how to extract audio from YouTube videos on a PC.

Step 1: Choose the Right Tool

There are several tools available to extract audio from YouTube videos on a PC. Some popular options include:

• FFmpeg: A powerful command-line tool that can extract audio from YouTube videos.
• YouTube Audio Extractor: A free online tool that can extract audio from YouTube videos.
• Audacity: A free, open-source audio editing software that can extract audio from YouTube videos.

For this article, we will use FFmpeg as the primary tool for extracting audio from YouTube videos.

Step 2: Download and Install FFmpeg

FFmpeg is a powerful tool that requires installation on your PC. Here’s how to download and install it:

• Windows: Download the FFmpeg installer from the official website (https://ffmpeg.org/download.html) and follow the installation instructions.
• macOS: Download the FFmpeg installer from the official website (https://ffmpeg.org/download.html) and follow the installation instructions.
• Linux: Download the FFmpeg installer from the official website (https://ffmpeg.org/download.html) and follow the installation instructions.

Step 3: Extract Audio from YouTube Video

Once you have installed FFmpeg, you can extract audio from a YouTube video using the following command:

ffmpeg -i "video.mp4" -vn -ar 44100 -ac 2 -ab 128k -f aac output.aac

Here’s a breakdown of the command:

• -i "video.mp4": Specifies the input file.
• -vn: Disables video output.
• -ar 44100: Sets the audio sample rate to 44.1 kHz.
• -ac 2: Sets the audio codec to AAC.
• -ab 128k: Sets the audio bitrate to 128 kbps.
• -f aac: Specifies the output format as AAC.
• output.aac: Specifies the output file name.

Step 4: Verify Audio Extraction

To verify that the audio extraction was successful, you can use the following command:

ffmpeg -i "output.aac" -vn -ar 44100 -ac 2 -ab 128k -f aac output.aac

This command will play the extracted audio back through the speakers.

Step 5: Remove FFmpeg Cache

After extracting audio from a YouTube video, you may want to remove the FFmpeg cache to prevent it from extracting audio from other videos. You can do this by running the following command:

ffmpeg -y -f aac -c copy output.aac

Here’s a breakdown of the command:

• -y: Forces FFmpeg to overwrite the output file without prompting for confirmation.
• -f aac: Specifies the output format as AAC.
• -c copy: Copies the output file without modifying it.

Tips and Variations

• Use a different audio codec: You can use different audio codecs, such as MP3 or WAV, to extract audio from a YouTube video.
• Use a different audio bitrate: You can adjust the audio bitrate to suit your needs. For example, setting the bitrate to 256 kbps may result in a smaller file size.
• Use a different audio sample rate: You can adjust the audio sample rate to suit your needs. For example, setting the sample rate to 48 kHz may result in a higher-quality audio file.
• Use a different audio format: You can use different audio formats, such as WAV or FLAC, to extract audio from a YouTube video.

Conclusion

Extracting audio from YouTube videos on a PC can be a useful skill for various purposes. By following the steps outlined in this article, you can extract audio from YouTube videos using FFmpeg. Remember to use the command line to extract audio from YouTube videos, and to verify the extraction by playing the audio back through the speakers. Additionally, be sure to remove the FFmpeg cache to prevent it from extracting audio from other videos.

Table: FFmpeg Options

Option	Description
-i "video.mp4"	Specifies the input file.
-vn	Disables video output.
-ar 44100	Sets the audio sample rate to 44.1 kHz.
-ac 2	Sets the audio codec to AAC.
-ab 128k	Sets the audio bitrate to 128 kbps.
-f aac	Specifies the output format as AAC.
output.aac	Specifies the output file name.
-y	Forces FFmpeg to overwrite the output file without prompting for confirmation.
-f aac	Specifies the output format as AAC.
-c copy	Copies the output file without modifying it.

Code Example: Extracting Audio from YouTube Video

import subprocess



def extract_audio(video_file):

    command = f"ffmpeg -i {video_file} -vn -ar 44100 -ac 2 -ab 128k -f aac output.aac"

    subprocess.run(command, shell=True)



video_file = "video.mp4"

extract_audio(video_file)

This code example extracts audio from a YouTube video using the FFmpeg command.