Q:"How can I record audio from a video?" – From Quora
This question from Quora is actually quite common. In everyday life, you might want to take a piece of background music from video to make your own ringtone, or extract a very inspirational speech audio from Ted Talk video, etc. Whatever your purpose, it is no longer an annoyance for you to record audio from video. Let's learn top 2 methods, online and offline together now.
Part 1. How to Record Audio from a Video Offline
Joyoshare VidiKit is a remarkable audio recorder specialized in recording all types of audios on your desktop, including streaming music, gameplay music, online radio, system audio, microphone sound, etc. It is well developed with a built-in audio encoder, which allows you to save any audio track to MP3, M4A, OGG, AAC, AC3, AIFF, FLAC, WMA, M4B, M4R, MKA, AU, etc. Most of all, it makes it possible to specify parameters in personalized way and enables you to adjust configurations handily, like codec, channel, bit rate and sample rate.
To delight you, it also comes with an easy-to-operate audio editor that helps you to trim unnecessary sections off and add ID3 tag info, such as artist, composer, year, genre, cover, title, etc. Aiming at creating satisfying audio recording, you as well have chance to set shortcut, insert image file, make recording task, highlight cursor, etc. During the period of recording, you can even skip unwanted content and cut audio track. Anyway, Joyoshare VidiKit can be a good option to record audio from YouTube, Ted Talk, Netflix, Facebook, Twitch, etc.
Step 1 Select recording mode
By default, Joyoshare VidiKit is set under "record video and audio" mode. You should change recording mode to "record audio" by clicking icon next to "REC" button. To avoid unexpected noise, you ought to only turn on system audio and disable microphone sound.
Note: Joyoshare VidiKit can do a good job when it acts as an independent video recorder under "record video and audio" mode. You can get access to this mode if you are going to capture Skype calls, Google Hangouts, Amazon instant video, gameplay, remote desktop session, etc.
Step 2 Set recording options
Continue to tap on the "gear" icon in the lower right corner. You will see all recording settings. Then it's time to make confirmation one after another, changing storage location, customizing parameters, applying cursor effect, etc.
Step 3 Capture audio from video
Go straight to open specific video and click the red "REC" button. After the 3-second countdowns, you can play your video. As long as there is audio wave fluctuating, audio track can be captured without hassle. Make full use of all buttons during recording as per your needs.
Step 4 Trim and edit recording audio
Once the recording process comes to end, you will be automatically led to "History" list. Press the audio you would like to listen to, or review its file name as you wish. Besides, what you can do is to click "edit" button to trim audio track and add tag info.
Part 2. How to Record Audio from Video Online
A quick method to get audio from video is to adopt one audio extractor online. Among diverse choices, Audio Extractor (http://audio-extractor.net/) is worth a shot. It is considerably simple to use. Here's how it functions.
Step 1: Click "Open video" or "Google Drive" to upload video;
Step 2: Select audio format as MP3, WAV, iPhone ringtone, M4A, FLAC, OGG and more;
Step 3: Simply press on "Extract audio" button to convert video to audio;
Step 4: Click "Download" or save audio to Google Drive or Dropbox.