Song too quiet

[HowardBrazee]

I run kJams with volume at 80%. A few songs get adjusted louder or quieter. But I have a couple of songs that are still way too quiet at 100% and I need to manually turn up the volume for that song. Is there a way to adjust a song to make it louder than what I do by telling kJams to play it at 100%?

[dave]

it IS possible to set the volume of a particular song to something > 100%, which is dangerous cuz it can blow your speakers, when you play a maxed out regular song.
better to re-encode the audio of that one song to have a "compressor" or something that normalizes the amplitude.

if you must know, you can remember the volume of a song, but this feature is only half baked because it does NOT put the volume back where it should be AFTER the song, it leaves the volume set to whatever the new song was, which COULD leave your volume controller at > 100%.

more info here

[DeusExMachina]

You need to renormalize the audio for that one track. There are lots of software packages that do that, or you can try something like Audacity.

[HowardBrazee]

I see I have songs in mp3 or a move or mp4 or cdg or m4v or MP3+G or mp3+ formats.

Can I load them into Audacity and adjust the volume and save them back, or is there some conversion I need to do before and after?

[DeusExMachina]

You can do them all without conversion, and the process is lossless. Most software will preserve the metadata tags as well.
Besides Audacity, you can also try:
https://macdownload.informer.com/mp3gain-express/
https://macdownload.informer.com/mp3-normalizer/
https://macdownload.informer.com/sound-normalizer/
You can use any of these apps in batch mode, processing entire folders, or your entire library, in one go.
These are all free.

You can also try the much more feature rich (and unfortunately expensive, IMO) Fission by RogueAmoeba. It lets you do far more with MP3s, including lossless editing, adding silence, removing audio, combining separate tracks into one (shouldn't this technically be Fusion?) splitting one track into multiple tracks, etc, while losing no audio quality and retaining all the original audio data in the MP3. If you do a lot of such editing, it might be worth the cost..
https://rogueamoeba.com/fission/

[HowardBrazee]

I tried opening a .mov that was in a .zip using Audacity. I guess I need to convert it first.

[DeusExMachina]

Sorry, been really lax lately.
Since Audacity is an audio editor, it can't remux (remix) the audio back into the video file. Audacity can renormalise the audio in a MOV file, but it will only export the audio. You will have to use additional software to remux the audio and video into a single MOV file.
Or use different software.

[dave]

what he said