The method of realizing Audio format conversion and splicing with linux Command
Install FFmpeg flac
eric@ray:~$ sudo apt install FFmpeg flac
Install lame faac
eric@ray:~$ sudo apt install lame faac
Convert a video with the suffix.ape to m4a(mp4) format
1. First convert it to mav format with ffmpeg command or flac command, and then convert wav to mp4 format with lame.
eric@ray:~/Music$ ffmpeg -i Gracie-Theme.ape Gracie-Theme.wav##oreric @ray:~/Music$ flac -d Gracie-Theme.flac Gracie-Theme.wav
2, and then use the lame command compressed into MP3
##Using the lame command: Use VBR dynamic bitrate compression, 0 means the highest quality, 9 means the lowest quality, default is 4eric@ray:~/Music$ lame -v Gracie-Theme.wav##or use faac encoding to get m4a(mp4), mp3 format file: 100 means the highest quality 100% eric@ray:~/Music$ faac -w -q 100 Gracie-Theme. wav-o Gracie-Theme. mp4
3, can also use ffmpeg compression to get m4a format:
#This uses the built-in aac encoding of ffmpeg, and sets the bit rate to a fixed 320keric@ray:~/Music$ ffmpeg -i Gracie-Theme. wav-strict experimental -c:a aac -b:a 320k Gracie-Theme.m4a#You can also use ffmpeg to decompress and compress it into a command:-map_metadata to retain song metadata, i.e. name, singer, etc. eric@ray:~/Music$ ffmpeg -i Gracie-Theme.flac -ab 320k -map_metadata 0 Gracie-Theme.m4a
4. Batch scripts
#!/ bin/bashfor FILE in *.ape;doffmpeg -i "$FILE" temp.wav;lame -b 320 temp.wav "${FILE%.*}. mp3";rm temp.wavdone
For an ape/flac file containing multiple songs
In this case, there is usually a cue file that contains the album name, artist name, and name of each song and time range of the ape/flac file. You can use the above method to convert the entire file to Mp3 format, and then use the mp3splt tool to split it.
Split cue file into mp3:
eric@ray:~/Music$mp3splt -c song.cue -o @n.@ t song.mp3
Common parameters:
@a: singer name
@b: album name
@t: song title
@n: Track number
audio merge
#Audio Merge eric@ray:~/Music$ffmpeg -i first.mp3 -i second.mp3 -filter_complex amix=inputs=2:duration=first:dropout_transition=2 -f mp3 third.mp3#two audio stitching eric@ray:~/Music$ffmpeg -i d1.mp3 -i d2.mp3 -filter_complex '[0:0] [1:0] concat=n=2:v=0:a=1 [a]' -map [a] j5.mp3#Three audio mosaics eric@ray:~/Music$ffmpeg -i title.wav -i content. wav-i trailer.wav -filter_complex '[0:0] [1:0] [2:0] concat=n=3:v=0:a=1 [a]' -map [a] synthesis.wav
resources
FFmpeg and AAC Encoding Guide https://trac.ffmpeg.org/wiki/Encode/AAC
The above linux command to achieve audio format conversion and splicing method is Xiaobian shared with everyone's full content, I hope to give you a reference, but also hope that everyone more support.
