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I need a tool to split my 45 second audio file on seconds: 3 6 8 12 14 17 20 23 25 27 30 33 36 38 41 43
Which software should I use (GUI is preferred)? Is there any that is free?
I want to listen to this audio (It is a bunch of words in audio format) and each time the speaker finished saying a word I press, for example, SPACE and the program records that point of time and this process continues until the end of the audio file and finally the program gives me, for example, 20 tiny mp3 files.
I recommend Mp3splt. It is free and open source, and available for Windows, Linux or Mac OS X.
It can split MP3, Ogg Vorbis and FLAC files. It does this without decoding, so avoids reducing quality. MP3 is a lossy format, so every time you re-encode a file, you would decrease the quality. Better to losslessly edit the file.
Mp3splt is a command line program, but there is a GUI version, Mp3splt-gtk. This allows you to play the file, and add splits at particular points. You can press Alt+A to add a split. Or you can enter the time for each split. It also has silence detection, so can add points based on that. You can also enter names for each part, before splitting into separate files.
Ubuntu has plenty of tools for this; many will also run on Windows.
A suitable command line tool is sox; for manipulating audio with a GUI I always use Audacity. Both are available for Windows. Audacity needs a separate plugin to support certain formats, such as MP3.
sox can detect silence so it may be possible to use it to do this automatically.
Sep 25, 2014 at 15:06
space button must be replaced by Ctrl-B). OP could go through the track as described, press Ctrl-B to set markers, and finally use "Export Multiple" to export the clips to separate files.