Audio question

Making a video, putting audio files in like background music, or in game sound effects, etc. What is a good reasonable dba level for the recording? you add that as filter per sound clip? I’m assuming Gain/Volume filter? Maybe a normalize filter?
When I make my videos though, I use different sound clips for different reasons, as I may add more than one back ground song, and multiple SFx, eventually my own voiceover. So What’s a good sound setting for all three, and the best filter?
I been making game playing experience videos for over a year now, and I do add voiceovers, background music, and in game sound Fx all the time. It seems I’m always guessing each new video, trying to find the right “setting”. Current project I’m working on, it seems the sound wave background music, the different clips are recorded at different volume settings. I add Gain/Volume and Normalize filters to one clip and keep around -15 to - 20 and seems fine, so I copy paste those filters to next clip, which comes through louder or quieter, not always same level, though using same filter settings. Idk y! When I was running a recent test of my final project, and fixing to record my voiceover, the finish project came through WAY too loud, about blew out my ears. It wasn’t like that in the recording edit of video.
So if somone can give me pointers how to create balanced audio in my videos, so it’s balance between each clip, and and the right volume compared to each other (background, vs sound Fx, vs my voiceover) I’d appreciate it! Also, besides adding the filters to each audio file in the timeline, is their a way to set the overall recording of the video so nothing goes louder to specific sound bite? like a Track filter or something for the timeline tracks?

I am not sure, that I can help you much here, because you seems more experienced with this than I am. But this is what I think.

I use a simple old household camera (Panasonic Lumix TZ7), and I think it got some automatic gain control of the microphone input. I seldom have to adjust gain. It is not the only microphone I use, but I always add a high pass filter to my microphone signals. It can be 200 Hz 6 db/oct or 150 Hz 12 db/oct.

Perhaps such automatic gain controls are used other places in Shotcut too without my knowledge. It may be to help amateurs like me. But I guess a more pro user of this would hate such automatic interventions. It could be, that some of the encoders do that.

You can arrange the audio clips on different tracks (for example voice Off on track A1, background music on A 2). This is assuming that all the voice Off clips has the same recording settings and the same for the background music. You can then apply the normalization filter to the track and it will affect all clips on that track.
In the case that each audio clip comes from different recording sources with different volumes, you can also organize the clips in different tracks as I wrote above (it is a good habit for project management). Next, I would apply a normalizing filter in two passes, to each of the clips.
To start with, you can try normalizing the audio clips to -17 LUFs and the background music to -23 LUFs. These are not optimal values, but you can start testing these settings to get a final loudness setting.
Note that if, in addition, you want to reinforce certain parts of the music or other audio with the gain filter (using keyframes) and apply the normalization filter later to that clip, you will have another scenario. The same will happen if you apply gain and then normalize.
Finally, all this is subjective depending on the final result you are looking for. Normalizing can remove the effect of emphasizing something with audio, so experimenting is the best way to see the results.


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