Is there a way with Audacity (or any other software) to find and and mark the 5 loudest and 5 softest points in a movie audio file? It seems like this should be easy to do.
I know next to nothing about audio software
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A long-shot, but this might work if you have a similar setup to mine.
It works equally well for DVD [I don't have a BluRay] TV, catchup, YouTube, Netflix, VLC, etc etc
I use my PC's built-in 7.1 analog outs to my 5.1 amp [which saves double decoding & odd phase issues I get over S/PDIF, or HDMI.]
My built-in sound is a Realtek HD device [I know, not the greatest in the world but adequate for watching movies]
If you use the basic drivers you get with Windows you can't do this, but if you get the ones directly from Realtek you get a whole lot more 'shiny' interface which allows you to rebalance individual volumes, individual speaker delays, overall EQ etc…
… but more importantly in this instance - it has what they call a "Sound Enhancer" toggle - which is actually a very aggressive compressor. It will really keep the sound in check [watch out, as initially it appears to boost the volume, but it will also really clamp down on the loud bits.]
I can't say I like it personally - I find it far too over-eager, but it does just the job you might need - & in realtime, without having to process the audio separately.
The overall EQ might be useful for dropping back the bass frequencies too - as these are more likely to be transmitting through walls/ceilings.
I doubt it. It isn't as trivial as it sounds to determine. You need to choose a period of time over which to sample to consider the average amplitude of the signal and that would impact the result. Additionally, there isn't a whole lot of advantage to identifying and displaying the x highest or x lowest points in the track, so there isn't really any demand for the feature.
Based on your comment to other post you want to narrow dynamic range of movie sound in such way, that loud sounds won't be too loud and soft sound will still be audible.
Dynamic range of a sound can be shaped by dynamic processor like compressor or limiter. VLC media player has built in compressor, you can try it out.