So, I'm looking to buy a subwoofer. I know humans can hear down to 20Hz and feel lower than that. In looking at subwoofer manufacturer frequency responses I decided it would be "fun" to look at some of my mp3 collection to see how low they go.
I have played around with some spectral analysis tools. Rather than looking at lines (which tend to move very quickly) it would be nice to see some raw data i.e. at 3 min 5 secs the 24 Hz freq was played at 120 db. Does anyone know of any software which will do this? I looked at waterfall spectrograms too be they seem to be even more difficult to read due to their use of colour to show intensity (pretty to look at though).
Secondly, from what I have seen it is common for all frequencies to be played at some level throughout a song (at least in my music). How do I know what db translates into something which would be heard / felt at a reasonable level when played by a sub?
I hope this isn't a mixed up bunch of rubbish I just posted
