Others offer one-click repairs to remove hiss and pops from your recording.įor more complex projects, a multi-track editor may be required. Some editors take this a step further and handle audio levels for you. An uncluttered interface and simple workflow ensure unnecessary features don't get in the way of the basics. Some apps make it easy for the less experienced audio editor. Not all of these features are essential to everyone looking for audio editing software, and your final decision will depend on the task at hand and your overall level of expertise: We've selected a variety of apps that bring something unique to the table.
These kinds of simple waveform edits are often referred to as destructive editing, where edits you make to the file overwrite the original when you click Save. You should be able to use any of these apps to trim an audio file down to size or merge two files together. This is the bread and butter of audio manipulation, including recording from a microphone, selecting audio on a waveform, copying and pasting, and deleting audio from the timeline.
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Maybe you'll have more luck (I didn't look too hard), but if nothing else and you don't mind the MKV format, the above method at least won't re-encode the video and you'll only be re-encoding the audio if necessary.Every editor we've chosen has a full set of basic editing controls. I just googled "extract flv audio" and found a couple of programs which appeared to do just that, but in reality they seemed to convert flv to a different format by re-encoding the audio and video. Rather than remux the flv files as MKVs first there might be a way to extract the audio from flv files directly. MKVMergeGUI will remux vob files as MKVs too, so you can use the same process as above for them, assuming you have an individual vob file per music video etc. IFO files are a different story because IFO files are DVD files which open associated vob files (unless there's a type of IFO file I'm not aware of). MKVMergeGUI opened the few flv files I have with which to test it, so it should work fine. You can add each to the job queue as before so you don't need to sit around waiting. Once again, open each flv file (or the newly created MKV), deselect the original audio, add the new version, and resave it as a final MKV file. Then it'd just be a matter of using MKVMergeGUI again to replace the original audio stream with the new version. For those which aren't MP3, well as you're familiar with it, I'd use my favourite converter to convert them to MP3 and do the same thing.
When all the audio is extracted, run any which are in MP3 format (which probably won't be unusual) through MP3Gain as you normally would. You can open multiple MKVs and use the right hand pane to extract all the audio as a single batch job. Once that's done, open the MKVs with MKVCleaver and extract the audio streams. when you're done open the job queue and start it running to remux all the flv files as MKV. Rather than remux them one at a time you can at least add them to MKVMergeGUI one at a time and then use the "add to job queue" buton, add the next, add it to the job queue. I don't know of any tools which make working with flv files easy, so I'd start by opening each flv with MKVMergeGUI and remux them as MKVs (no re-encoding). If your definition of "normalise" means making them all sound like they have the same level.
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