The output wave file has to have 48000 kHz and 24-bit. The catch is that the duration of the audio file has to have the exact same length in frames as the video track. I'd forgotten about FFMPEG in the background and have only a vague idea of what it does.For a digital cinema package I need to extract the audio track (.wav, 48000 kHz, 16-bit) from QuickTime movies (in this case with Prores or Photo-JPEG codec).
You have to then try to find another app that might work or wait till your preferred app is updated to work around the Youtube changes. The one I looked at gave you 2 quality choices, the best of which was 128k bitrate-not ideal.Ĭomplicating the issue is the fact that Youtube is constantly making coding or layout changes-which typical render a "youtube video downloader" application useless. There are web sites/applications out there where you simply paste in a Youtube URL and wait maybe 45 to 60 seconds, during which time the app strips the audio and then reports back with a link through which you can download the audio portion as an mp3. I could more easily have captured the audio only simply by playing the video through without downloading it. Method 2 is certainly slower in my case as I have to take time to download the video and then in a separate step pull the audio from it. What video formats will Audacity NOT open? I have successfully opened AVI, MP4, MOV, and FLV so far and assume I could extract the audio track from any of them. Is either method NECESSARILY preferable in terms of fidelity? What are the shortcomings of each-if any? I then export the audio portion back to my hard drive as an mp3 or WAV.
The audio track waveform shows as expected. I then open Audacity and open that downloaded file now sitting on my hard drive. I download that video file to my hard drive, using any of several available apps designed to download Youtube files. I then export that capture as an mp3 or WAV.Ģ: I go to Youtube and locate the same video. While in record mode, I play the full video, capturing the audio portion (using the "stereo mix" functionality of my sound card) in Audacity after assuring I have a decent level. I know very little about the audio portion of video files as might be found on Youtube.Īt times, I would like to capture the audio portion of such a file to an audio-only WAV or mp3.ġ: I go to Youtube and locate a video.
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