youtube-dl already contains this functionality – just specify that you want mp3: youtube-dl -x –audio-format mp3 https://www.youtube.com/watch?v=BaW_jenozKc Replace https://www.youtube.com/watch?v=BaW_jenozKc with your actual URL.
Strip metadata tags and remove album cover image ffmpeg -i input.mp3 -map 0:a -c:a copy -map_metadata -1 output.mp3 -map 0:a Includes only audio (omits all images). See FFmpeg Wiki: Map for more details. -c:a copy Enables stream copy mode so re-encoding is avoided. -map_metadata -1 Omits all metadata.
Use file-loader like this: { test: /\.mp3$/, loader: ‘file-loader’ }
I wrote a python library, pydub, that essentially does what Corey’s Answer suggests, though it uses ffmpeg in to do the conversions in order to support more formats. from pydub import AudioSegment AudioSegment.from_wav(“/input/file.wav”).export(“/output/file.mp3″, format=”mp3”)
Try this, it worked for me. sudo apt-get install ffmpeg libavcodec-extra-52 thanks to ffmpeg: convert audio-only flv to swf
Here is how to add example.png as album cover into example.mp3 with mutagen: from mutagen.mp3 import MP3 from mutagen.id3 import ID3, APIC, error audio = MP3(‘example.mp3’, ID3=ID3) # add ID3 tag if it doesn’t exist try: audio.add_tags() except error: pass audio.tags.add( APIC( encoding=3, # 3 is for utf-8 mime=”image/png”, # image/jpeg or image/png type=3, # … Read more
Use the silenceremove filter. This removes silence from the audio track only – it will leave the video unedited, i.e., things will go out of sync Its arguments are a little cryptic. An example ffmpeg -i input.mp3 -af silenceremove=1:0:-50dB output.mp3 This removes silence at the beginning (indicated by the first argument 1) with minimum length … Read more
You can use this command. ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t <seconds> -q:a 9 -acodec libmp3lame out.mp3 Change <seconds> to a number indicating the number of seconds of silence you require (for example, 60 will create a minute).